Contents:  A. Applications Index
Contents:  A. Screw-on Gas Valves
Contents:  A. 0A1 to 0A1: 08 mm
Contents:  A. 0A2 to A11: 10 mm
Contents:  A. A12 to A24: 12 mm
Contents:  A. A25 to A30: 14 mm
Contents:  A. A31 to A37: 16 mm
Contents:  A. A37 to A38: 22 mm
Contents:  B. Other Gas Valves
Contents:  B. Clamp-on (push-in)
Contents:  B. Bolt-on
Contents:  B. Inline (remote)
Contents:  C. Filters and Parts
Contents:  D. Information

 

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Applications Index

 

These applications are US models (sold new in the USA), unless noted.
All of these valves use 3/16″ (5mm) I.D. fuel hose, unless noted.

replacementxxstyle  hose spigot  xxxxxxxxxxx  years  Brand  (Maker)  Models  (frame style)  substitute  optional
valve  threads  style  hose spigot  xxxxxxxxxxx  years  Brand  (Maker)  Models  (frame style)   valves xx  valves

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A15  12-1.00 female spigot back  xxxxx xxxx  1980-82 AMF Roadmaster 130
0A8  10-1.00 fxmale spig. down 20 extender   1980-83 AMF Roadmaster 140, 141
A28  14-1.00 female spigot back xxxxx xxxx   1978-84 AMS (Her Chee) Sierra 50, Tahoe 50 (use A26)
A13  12-1.25 fxmale spigot left x xxxxx xxxx  1978-80 Angel (TYM) BP48, BP48-S (tube frame)
B13  bolt-on petcock side mount xxxxx xxxx   1977-78 Angel (TYM) AP48 (sheet metal frame)
0A8  10-1.00 fxmale spigot down 20 extender 1978-80 Arciero (Italtelai) Eagle, Hawk, Sea Gull (use A2)
A00  10-1.00 fxmale spigot left x 20 extender 1978-80 Arciero (Italtelai) top tank (use A4)
A17  12-1.00 female spigot left x xxxxx xxxx  1999-02 Avanti (Mont) Kobra, Mont, Autopower
A17  12-1.00 female spigot left x xxxxx xxxx  1999-02 Avanti (Mont) Super Sport, Cosmo Stinger

0A3  10-1.00 fxmale spigot back xxxxx xxxx   1977-80 Baretta (Piccoli) Magnum, also A4 or A2
A15  12-1.00 female spigot back  xxxxx xxxx  1977-79 Baretta (Piccoli) 22, 38 (regular tube frame)
A21  12-1.00 female spigot right long shaft x  1977-80 Baretta (Piccoli) 44, 45 (large mono-tube frame)
A14  12-1.00 female spigot down xxxxx xxxx  1976-80 Batavus VA (step thru) models
A15  12-1.00 female spigot back  xxxxx xxxx  1977-80 Batavus HS (top tank) models
A00  12-1.00 female spigot right detach-shaft 1976-80 Benelli (SEIMM) G2, C2 (mono-tube frame) (use A20)
A18  12-1.00 female spigot right xxxxx xxxx   1976-79 Bermuda (Flandria) vertical type valve mounted sideways
0A8  10-1.00 fxmale spigot down 20 extender 1977-80 Bianchi (Italtelai) Stardust (step-thru) (use A2)
A00  10-1.00 fxmale spigot left x 20 extender 1978-80 Bianchi (Italtelai) Satellite (top tank) (use A4)

0A2  10-1.00 fxmale spigot down xxxxx xxxx  1977-79 Carabela (Acer-Mex) Motomatic
A14  12-1.00 female spigot down xxxxx xxxx  1977-80 Casal K196 (top tank)
0A4  10-1.00 fxmale spigot left x xxxxx xxxx  1976-77 Cimatti Twin Sport (dual tanks, front tank)
A17  12-1.00 female spigot left x xxxxx xxxx  1977-78 Cimatti Town Bike (single front tank)
A17  12-1.00 female spigot left x xxxxx xxxx  1978-79 Cimatti Twin Sport (single front tank)
A18  12-1.00 female spigot right xxxxx xxxx   1976-79 Cimatti City Bike (with original 10-12 adapter)
0A2  10-1.00 fxmale spigot down xxxxx xxxx  1976-79 Cimatti City Bike (no adapter, difficult to install)
A28  14-1.00 female spigot right xxxxx xxxx   1978-80 Clinton (Jui Li) ST (step-thru) (use A26 or A28)
A17  12-1.00 female spigot left x xxxxx xxxx  1979-80 Columbia Commuter, Open Road (mono tube frame)
A18  12-1.00 female spigot right xxxxx xxxx   1976-80 Columbia Commuter, Open Road (sheet frame) also A15
A18  12-1.00 female spigot right xxxxx xxxx   1978-80 Columbia Imperial, Western Flyer, Yard Man (sheet frame)
A18  12-1.00 female spigot right xxxxx xxxx   1980-81 Columbia Medallion, Western Flyer Apache 3000 (top tank)
0A2  10-1.00 fxmale spigot down xxxxx xxxx  1977-79 Concord (Fantic) XKE (mono-tube frame)
0A2  10-1.00 fxmale spigot down xxxxx xxxx  1979-80 Concord (Fantic) Freedom, Invader (can be either 10 or 12)
A14  12-1.00 female spigot down xxxxx xxxx  1979-80 Concord (Fantic) Freedom, Invader (can be either 10 or 12)
A00  10-1.00 fxmale spigot back xxxxx xxxx   1977-79 Cosmo (Piccoli) Blazer 1, 2 (step thru)
0A3  10-1.00 fxmale spigot back xxxxx xxxx   1978-79 Cosmo (Piccoli) Colt 1, 2, 5 (top tank) also A4 or A2
0A3  10-1.00 fxmale spigot back xxxxx xxxx   1979-80 Cosmo (Malaguti) Colt 3, 3A, 4, 4B (top tank)  also A4 or A2
A00  12-1.00 female spigot left x xxxxx xxxx  1980-80 Cosmo (Testi) Amico (step thru enclosed body)
A17  12-1.00 female spigot left x xxxxx xxxx  1999-02 Cosmo (Mont) Stinger, Avanti Supersport (top tank)

0A3  10-1.00 fxmale spigot back xxxxx xxxx   1976-79 DEMM Smily, Scout, also A4
0B2  15mm clamp-on side mount 1/4″ hose x 1976-89 Derbi Variant SL, Variant SLE, TT, Variant Sport
A30  14-1.25 fxmale spigot down 1/4″ hose x 1978-86 Derbi C5, RD50, Sport Laguna (top tanks)
0A4  10-1.00 fxmale spigot left   xxxxx xxxx   1974-79 Di Blasi R2 folding mini-cycle (on right side)
0A5  10-1.00 fxmale spigot right xxxxx xxxx   1979-97 Di Blasi R7 folding mini-cycle (on left side)
0B5  12mm push-in spigot back  xxxxx xxxx   1997-00 Di Blasi R7E folding mini-cycle (on left side)
0B6  12mm push-in spigot right  xxxxx xxxx   2000-on Di Blasi R7E-V2 folding mini-cycle (on left)

A18  12-1.00 female spigot right  xxxxx xxxx  1982-82 Eagle (Hercules) I, II (step thru), III (top tank) also A15

0A3  10-1.00 fxmale spigot back xxxxx xxxx   1977-79 F. Morini (Lem) Chembol, also A4
A32  16-1.00 female spigot back xxxxx xxxx   1977-79 Flying Dutchman (Kynast) (tube frame)
A32  16-1.00 female spigot back xxxxx xxxx   1976-77 Flying Dutchman (Sparta) (sheet frame rear tank)
A31  16-1.00 female spigot down xxxxx xxxx  1977-80 Flying Dutchman (Sparta) (sheet frame front tank)
A33  16-1.00 female side mount original  xxx  1977-80 Foxi (KTM) Deluxe, Baron, Salzburg (use A34)
A31  16-1.00 female spigot down xxxxx xxxx  1977-80 Foxi (Sparta) GT, GT Sport, Flying Dutchman
A28  14-1.00 female spigot back xxxxx xxxx   1979-80 Foxi (Jui Li) 47 (top tank) (use A26 or A25)
0A3  10-1.00 fxmale spigot back xxxxx xxxx   1977-78 Foxi (Testi) Silver Foxi (mono-tube) also A2

0A5  10-1.00 fxmale spigot right  xxxxx xxxx  1977-80 Gadabout (Moto BM) also A3
A15  12-1.00 female spigot back  xxxxx xxxx  1973-77 Garelli Eureka, Sport, Gran Sport, Gulp
A15  12-1.00 female spigot back  xxxxx xxxx  1978-80 Garelli Sport, Rally Sport, VIP
A15  12-1.00 female spigot back  xxxxx xxxx  1984-85 Garelli Basic (needs long reserve tube) (use A21)
A19  12-1.00 female spigot back short shaft    1980-86 Garelli Sport, Rally Sport, Rally SL
A15  12-1.00 female spigot back  xxxxx xxxx  1983-86 Garelli Monza GT (use A16)
A28  14-1.00 female spigot back xxxxx xxxx   1979-85 General (Jui Li) 5-Star (top tank) (use A26 or A25)
A28  14-1.00 female spigot right xxxxx xxxx   1979-85 General (Jui Li) 5-Star ST (step-thru) (use A26 or A28)
0A3  10-1.00 fxmale spigot back xxxxx xxxx   1984-86 General (Moto Meteora) TE (step thru)
0A3  10-1.00 fxmale spigot back xxxxx xxxx   1977-80 Gitane (Testi) OKS, Sport (tube frame) also A4 or A2
0A3  10-1.00 fxmale spigot back xxxxx xxxx   1977-80 Gitane (Testi) CL200, Confort (sheet frame) also A4 or A2
0A3  10-1.00 fxmale spigot back xxxxx xxxx   1977-80 Gitane (Testi) Cricket, Super Sport (mono-tube) also A2
A28  14-1.00 female spigot back xxxxx xxxx   1978-80 Grycner (Jui Li) and re-brands (use A26)

A15  12-1.00 female spigot back clear trap x   90’s-00s Hero (Majestic) Pacer, Panther (use A16)
A25  14-1.00 female spigot down xxxxx xxxx  1979-81 Honda NA50 Express II
A26  14-1.00 female spigot left x xxxxx xxxx  1977-83 Honda NC50 Express
A27  14-1.00 female spigot right  1/4″ hose x 1982-82 Honda MB5 (MB50)
A37  16-1.50 female spigot down xxxxx xxxx  1968-78 Honda Z50 Mini Trail, QA50, MR50
A16  12-1.00 female spigot back clear trap x   1977-83 Honda PA50 Hobbit (step thru)

A35  16-1.50 female side mount original  xxx  1979-83 Indian (Merida/Mira) AMI-50 (use A36)
A24  12-1.00 female side mount xxxxx xxxxx  1976-78 Intramotor-Gloria Blanco (sheet frame)
0A3  10-1.00 fxmale spigot back xxxxx xxxx   1976-79 Intramotor-Gloria Scout also A4 or A2
0A5  10-1.00 fxmale spigot right xxxxx xxxx   1976-76 Itom Automatic

A38  22-1.00 female spigot down xxxxx xxxx  1970-82 Jawa Babetta 28, 206, 207
A32  16-1.00 female spigot back xxxxx xxxx   1980-83 Jawa Supreme, Supreme II (top tank)
A15  12-1.00 female spigot back  xxxxx xxxx  1978-79 JC Penney (Kromag) Pinto, Swinger (use A18)
A28  14-1.00 female spigot back xxxxx xxxx   1978-80 Jui Li Honey 50 and compatibles (use A26)

A14  12-1.00 female spigot down xxxxx xxxx  1995-05 Kinetic TFR, TFR-USA
A18  12-1.00 female spigot right xxxxx xxxx   1987-93 KKM Mopet (sheet frame Columbia remake)
A15  12-1.00 female spigot back  xxxxx xxxx  1977-80 Kreidler Flory MP9, MP19 (use A14)
A33  16-1.00 female side mount original  xxx  1977-80 KTM Foxi Deluxe, Baron, Salzburg (use A34)

A28  14-1.00 female spigot back xxxxx xxxx   1977-80 Lazer (Jui Li) Sport 50, Sport 50 ST (use A26)
A28  14-1.00 female spigot back xxxxx xxxx   2009-on Lazer (Bashan) SSR Lazer 5 (step thru) (use A26)

0A2  10-1.00 fxmale spigot down xxxxx xxxx  1976-79 Maico (Moto Bimm) MPI (step thru)
0A3  10-1.00 fxmale spigot back xxxxx xxxx   1977-80 Malaguti Commuter (step thru) also A4
0A4  10-1.00 fxmale spigot left x xxxxx xxxx  1978-79 Malaguti Pilot (top tank)
A28  14-1.00 female spigot back xxxxx xxxx   1979-80 Moprix (Pou Yen) Speed Bird (step thru) (use A26)
A27  14-1.00 female spigot right xxxxx xxxx   1979-80 Moprix (Pou Yen) Moprix (top tank) (use A25)
0A1  08-1.00 fxmale spigot L or R xxxx xxxx   50’s-60s Motobecane/Motoconfort
0A4  10-1.00 fxmale spigot left x xxxxx xxxx  1971-80 Motobecane Mobylette 40, 50, 50V, Moby, Traveler, Le Moped
A15  12-1.00 female spigot back  xxxxx xxxx  1980-81 Motobecane Sebring (Italian top tank)
0A3  10-1.00 fxmale spigot back xxxxx xxxx   1977-79 Motobee (Testi) RS100 (step thru) also A4
A15  12-1.00 female spigot back  xxxxx xxxx  1971-80 Moto Guzzi (SEIMM) Chiu, Robin (sheet frame)
A00  12-1.00 female spigot right detach-shaft 1977-80 Moto Guzzi (SEIMM) Robin (mono tube frame) (use A22)
A15  12-1.00 female spigot back  xxxxx xxxx  1985-90 Motomarina (Moto Meteora) Sebring (top tank)
0A3  10-1.00 fxmale spigot back xxxxx xxxx   1987-89 Motomarina (Moto Meteora) Raven (step thru)
0A3  10-1.00 fxmale spigot back xxxxx xxxx   1987-89 Motomarina (Moto Meteora) Tri-Power (3-wheeler)
0A2  10-1.00 fxmale spigot down xxxxx xxxx  1978-79 Motron Sprint, Medalist, Classic (step thru)
0A8  10-1.00 fxmale spigot down 20 extender 1980-81 Motron Medalist, Classic (step thru) (use A2)
A14  12-1.00 female spigot down xxxxx xxxx   1979-82 Murray (all models) (step thru) also A17

0A3  10-1.00 fxmale spigot back xxxxx xxxx   1977-82 Negrini Harvard, Harvard II (step thru mono tube) also A4)
0A3  10-1.00 fxmale spigot back xxxxx xxxx   1977-82 Negrini Leprotto, Gazelle, Gazelle II, III (step thru) also A4)
0A2  10-1.00 fxmale spigot down xxxxx xxxx  1977-82 Negrini MX Sport, MX Sport II (top tank) also A3, A4)
0A0  10-1.00 fxmale spigot back detach-shaft 1976-78 NVT Easy Rider ER, ER2, Scorpion (mono tube) (use A6)

A00  16-1.00 female spigot left x xxxxx xxxx   1977-80 Odyssey (Solo) 32/1, 40/1, 40/2 (step thru) (use A32)

0A8  10-1.00 fxmale spigot down 20 extender 1978-80 Pacer (Italtelai) P14, Sport P78 (mono-tube) (use A2 or A4)
0A0  10-1.00 fxmale spigot left x 20 extender 1979-80 Pacer (Italtelai) Super Sport (top tank) (use A4)
0A8  10-1.00 fxmale spigot down 20 extender 1980-80 Peugeot 102SP
0A2  10-1.00 fxmale spigot down xxxxx xxxx  1976-83 Peugeot 103, 103SP
A12  12-1.00 fxmale spigot down xxxxx xxxx  80’s-90s Peugeot Vogue (Euro model)
A32  16-1.00 female spigot back xxxxx xxxx   1978-86 Puch Magnum XK, MkII, II, Cobra 1, 2 (top tanks)
A24  12-1.00 female side mount xxxxx xxxxx  1969-86 Puch Maxi, Sport, Newport models (sheet frame)
A31  16-1.00 female spigot down xxxxx xxxx  1954-68 Puch MS50, VS50, VS50D (Euro models) (sheet frame)
A39  22-1.00 female spigot down long shaft x 1995-99 Puch (Manet) Korado (mono tube frame)
A24  12-1.00 female side mount xxxxx xxxxx  1989-92 Puch (Piaggio) Super Maxi (Euro model)

0A2  10-1.00 fxmale spigot down xxxxx xxxx  1977-79 Rizzato Califfo de Luxe, La Mopette (step thru)

A18  12-1.00 female spigot right  xxxxx xxxx  1976-80 Sachs (Hercules) P1, Westlake, Sundancer (sheet frame)
A15  12-1.00 female spigot back  xxxxx xxxx  1976-80 Sachs (Hercules) M4, Balboa , Suburban (tube frame) also A18
A15  12-1.00 female spigot back  xxxxx xxxx  1980-83 Sachs (Hercules) Seville (sheet frame)
A17  12-1.00 female spigot left x xxxxx xxxx  1980-83 Sachs (Hercules) Prima (step-thru)
A18  12-1.00 female spigot right xxxxx xxxx   1980-84 Sachs (Hercules) Prima G3 (top tank)
0A5  10-1.00 fxmale spigot right xxxxx xxxx   1975-78 Safari (MZV) Ridget, Super, Super Extra (mono tube) also A3
0A5  10-1.00 fxmale spigot right xxxxx xxxx   1978-80 Safari (MZV) Leader, Cobra (mono tube) also A3
0A3  10-1.00 fxmale spigot back xxxxx xxxx   1978-91 Safari (MZV) Automix, 300MT (top tanks) also A4, A2
0A3  10-1.00 fxmale spigot back xxxxx xxxx   1978-91 Safari (MZV) 400MT (has two petcocks, top tank and frame tank)
0A3  10-1.00 fxmale spigot back xxxxx xxxx   1978-91 Safari (MZV) Variomatic, Commando (top tanks) also A4, A2)
0A0  10-1.00 fxmale spigot back detach-shaft 1977-79 Scorpion SC1, SC2, SC2X, NVT Easy Rider (mono tube) (use A6)
A14  12-1.00 female spigot down xxxxx xxxx  1978-79 Sears (Kromag) Free Spirit (all models)
A31  16-1.00 female spigot down xxxxx xxxx  1956-69 Sears (Puch) Allstate Mo-Ped
0A8  10-1.00 fxmale spigot down 20 extender 1978-80 Snark (Italtelai) Standard, Deluxe (step-thru) (use A2)
0A0  10-1.00 fxmale spigot left x 20 extender 1978-80 Snark (Italtelai) Satellite (top tank) (use A4)
A31  16-1.00 female spigot down xxxxx xxxx  1977-83 Sparta Foxi GT, Buddy, Lucky
A32  16-1.00 female spigot back xxxxx xxxx   1974-77 Sparta Lucky (rear tank)
A13  12-1.25 fxmale spigot left x xxxxx xxxx  1977-78 Speed Bird (TYM) BP48, BP48-S (tube frame)
A28  14-1.00 female spigot back xxxxx xxxx   1976-78 Sprinter (Tsing Hua) and compatibles (use A26)
B16  remote petcock (in-line) xxxxxx xxxxxx   1980-91 Suzuki FA50 Shuttle

0A7  10-1.00 fxmale spig. down 15 extender  1987-93 Tomos early top tank models
A17  12-1.00 female spigot left x xxxxx xxxx  1974-95 Tomos A3, A35 (all step thru)
A17  12-1.00 female spigot left x xxxxx xxxx  1996-06 Tomos Sprint (A35 engine)
A17b12-1.00 female spig left ext. round knob 1994-13 Tomos Targa LX, Tomos LX, LX (top tanks)
A20  12-1.00 female spigot left medium shaft 1994-06 Tomos Targa, Tomos, ST (A35 engine)
A18  12-1.00 female spigot right xxxxx xxxx   2007-13 Tomos Sprint, ST (A55 engine)
A18  12-1.00 female spigot right xxxxx xxxx   2001-13 Tomos Revival, Streetmate, Arrow
0B1  13mm clamp-on spigot right xxxx xxxxx  1998-02 Tomos TX50, Super Tom, MC36, MC50, MC80
B15  remote petcock (in-line) xxxxxx xxxxxx   1982-85 Trac (Kia) Clipper (rear tank remote petcock)
B15  remote petcock (in-line) xxxxxx xxxxxx   1983-85 Trac (Kia) Hawk, Sprint (top tank remote petcock)
A29  14-1.00 female side mount xxxxx xxxxx  1982-85 Trac (Kia) Eagle (step thru sheet frame) (use A26)
B15  remote petcock (in-line) xxxxxx xxxxxx   1985-88 Trac (Daelim) Clipper, Escot (step thru rear tank)
A28  14-1.00 female spigot back xxxxx xxxxx  1984-88 Trac (Daelim) Image, Sprint (top tank) (use A26 or A25)
B15  remote petcock (in-line) xxxxxx xxxxxx   1985-89 Trac (Daelim) Olympic, Liberty, Blitz (step thru remote)
A26  14-1.00 female spigot left x xxxxx xxxx   1989-90 Trac (Daelim) Metro (step thru rear tank)

A18  12-1.00 female spigot right xxxxx xxxx   1977-79 Vespa (Piaggio) Bravo (metal tank)
0B1  13mm clamp-on spigot right xxxx xxxxx  1975-78 Vespa (Piaggio) Bravo (plastic tank)
A23  12-1.00 female side mount xxxxx xxxxx  1967-90 Vespa (Piaggio) Ciao, Ciao PX
A21  12-1.00 female spigot right long shaft xx 1978-86 Vespa (Piaggio) Grande, Grande MX, Si

0A1  08-1.00 fxmale spigot L or R xxxx xxxx   1957-64 Wards (Motobecane) Riverside Mo-Ped
0A2  10-1.00 fxmale spigot down xxxxx xxxx  1965-70 Wards (Benelli) Riverside 150D, 250D
A27  14-1.00 female spigot right xxxxx xxxxx  1978-79 Wheel King Road Runner, Cuyler (mono tube) (use A25)
A15  12-1.00 female spigot back no res. tube  1998-09 Whizzer motorized bikes (use A16 with reserve tube removed)

A27  14-1.00 female spigot right xxxxx xxxxx  1979-82 Yamaha QT50 Yamahopper (use A25)
0A3  10-1.00 fxmale spigot back xxxxx xxxxx  1977-79 Yankee Peddler (FMB), also A4 or A2

0A9  10-1.00 fxmale spig. down 26 extender   unknown application
A10  10-1.00 fxmale spigot left x26 extender   unknown application
A11  10-1.25 fxmale spigot right  xxxxx xxxx   unknown application

 

 

A. Screw-on Gas Valves

 

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A1. 8x1 male spigot L or R push-pull

Links to photos of examples:

1960 Wards Riverside original
1965 Motobecane AV79 original

 

 

 

 

 

 

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A2. 10x1 male spigot down

Links to photos of examples:

1977 Pacer P14
1977 Negrini Harvard replacement
1977 Cimatti City Bike (when adapter is missing)
1978 Cimatti City Bike (with no 10-12 adapter)
1978 Motron original (extender on tank)
1978 Concord XKE original
1980 Peugeot 103 LVS replacement

This valve fits hundreds of mopeds and mini-cycles. It fits any tank with a 10×1 threaded hole, and with nothing below or near the valve that would interfere. 

Cimatti rear tanks have a 10×1 threaded hole, but there is a nearby “wall” that prevents a 10×1 male valve from screwing in, unless the whole gas tank is removed. That requires rear wheel and rear fender removal. To make gas valve installation easy, Cimatti added a screw-in 10-to-12 adaptor piece, and used a 12×1 female type gas valve, with a turnbuckle type nut. Only the nut turns, and the “wall” does not matter. So it is much better to reuse the 10-to-12 adaptor, and use a 12×1 spigot right valve, see below.

 

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A3. 10x1 male spigot back

Links to photos of examples:

1977 Intramotor-Gloria Scout
1977 Malaguti Commuter original
1978 Malaguti Commuter original
1978 Baretta Magnum (top tank)
1978 Yankee Peddler original
1979 Cosmo Colt original
1979 Motobecane 50V original
1980 Cosmo Colt 3 original
1985 Safari 300MT Turbo replacement

 

Motobecane: 1970’s sheet-frame Motobecanes use a A3 type vertical valve, but not in a vertical orientation. Instead it is almost horizontal, at about 70 degrees from vertical. So a spigot-back valve fuel hose goes down, not back. An A4 10 x 1 spigot-left is a better replacement choice. With A3 the fuel hose goes down first, and then slightly uphill before it curves down into the Gurtner carburetor. With A4 the fuel hose goes forward first, and then slightly down hill before curving down to the carb. The A4 allows the fuel hose to be empty when the tank is empty. The A3 with a U-shape hose routing would trap some liquid, just like under a sink drain. Then the bike would have to be leaned to the right to empty the fuel hose completely. 

 

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A4. 10x1 male spigot left

Links to photos of examples:

1977 Motobecane frame A4b replacement
1978 Gitane Sport original
1978 Motobecane frame replacement
1978 Motron Classic A4b replacement

Any top-tank model, with a 10 x 1 threaded hole on the right side (and nothing nearby) would use this A4 petcock.

Motobecane: This spigot-left valve fits 1970’s sheet-metal-frame Motobecanes, where there is a tight space. It substitutes for the spigot-back original configuration. The fuel hose is routed slightly better than it was with the original valve.

 

 

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A5. 10x1 male spigot right

Links to photos of examples:

1976 Itom Automatic
1978 Safari Super Extra
1979-89 Di Blasi R7     #141 on left side
1989-97 Di Blasi R7TB #141 on left side

 Any top-tank model, with a 10 x 1 threaded hole on the left side (and nothing nearby) would use this A5 petcock. 

 

 

 

 

 

 

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A6. 10x1 male spigot back medium shaft

Links to photos of examples:

1977 NVT Easy Rider
1978 Scorpion SC2

Like the other 10×1 male valves, the whole valve must turn around and around, to screw on. But the long shaft would usually hit something, that would prevent the valve from screwing on. The original valves had a detachable shaft, held on by a clip. So the valve could be installed or removed without the shaft.

This replacement valve does not have a easily detachable shaft. But the shaft can be removed by loosening the shaft nut. To install the valve, remove the shaft, then screw on the valve, tighten only to a little more than “finger tight”, aim it to face outward or whatever direction is best, then replace the shaft. 

 

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A7. 10x1 male spigot down with 15mm extender

Links to photos of examples:

1987 Tomos A3 Bullet TT
1993 Tomos A35 Bullet TT

This valve fits early 1987-93 Tomos top tanks with 10×1 internal threads. After 1993 Tomos top tanks have 12×1 external threads and take valve A17b.

The knob has to be removed in order to screw on because the tank wall is too close. Once installed the round knob goes through a one inch hole in the right plastic panel below the tank.

Here it is shown without the metal cup and rubber ring, but those things are included. The 15mm length extension includes the cup and rubber.

 

 

 

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A8. 10x1 male spigot down with 20mm extender

Links to photos of examples:

1978 Pacer Sport P78 original A8 (can use A2)
1980 Motron Fairway no tank extender (can use A2)
1980 Peugeot 102SP original A8
1980 AMF Roadmaster 140 original A8
1983 AMF Roadmaster 140 replacement
1978 Malaguti Pilot original A8b (can use A4)
1980 Pacer Super Sport original A8b (can use A4)

A8 This valve is an A2 plus a C8 extender. The C8 extender costs more than the A2 valve, so when replacing a 10mm valve that has a 20mm extender it is better to re-use the extender.

A8b This valve is an A4 plus a C8 extender. This configuration was on Malaguti Pilot and Baretta Magum. Can use just A4 without extender.

Peugeot 102: On 1980 Peugeot 102 there is a wall that prevents the valve from being screwed in, unless there is an extender piece between the valve and the tank. This model must have the extender present.

AMF with Minarelli: The 1980-83 AMF Roadmaster 140, 141 with Minarelli V1 mid-engine is another model that needs a short extender to position the valve knob to go through the hole in the body panel. This A8 replacement shown in the link fits, but the end of the handle must be ground off.

 

 

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A9. 10x1 male spigot down with 26mm extender

This 10×1 spigot down valve has a 26mm extender that positions the valve lower, away from the bottom of the tank. The 26mm extender includes a longer reserve tube.

When an extender is added to a valve, the reserve tube needs to be longer. When the reserve tube is too short, there is little or no reserve. Here the original reserve tube has been replaced with a longer one, 60mm from the valve base instead of 35mm.

Any of the other 10×1 male valves can have a 15, 20, or 26mm extender added. Some already have long reserve tubes.

 

 

 

 

 

 

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A10. 10x1 male spigot left with 26mm extender

At left is a used leaking original, not for sale. An unknown application.

At right is a new replacement, for sale. It is either a 403200 (shown) or 01z2351035 (red) valve, with a 1 inch extender.

It includes a 1 inch longer reserve tube and both outer seal rings.

 

 

 

 

 

 

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A11. 10x1.25 male spigot right

This valve fits tanks with M10-1.25 female thread

None of the mopeds on this site have this thread. It may be for Chinese motorized bicycle gas tanks.

No reserve just OFF and ON.

Nut adjusts vertical height to fit closer or farther from tank.

Direction adjusts 360 degrees (like most others).

 

 

 

 

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A12. 12x1 male spigot down

Links to photos of examples:

90’s Peugeot Vogue

This 12×1 valve is a male thread, right hand (clockwise is tighter). All other 12×1 valves are female thread and have a turnbuckle nut with both left and right hand thread. With the turnbuckle nut removed, the other 12×1 valves are male thread, left hand (clockwise is looser).

Because the whole valve must be screwed in to install it, the handle knob detaches with a clip.

This valve fits a Peugeot Vogue, perfectly.

 

 

 

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A13. 12x1.25 male spigot left

Links to photos of examples:

1978 Speed Bird BP48
1979 Angel BP48S

Speedbird BP48 and Angel BP48-S, tube frame models made in Taiwan by TYM, use this valve. The 1.25 thread is more coarse than 1.0.

A13 is an A4 plus a custom made adapter, 10×1.00 female to 12×1.25 male thread.

A13b is an A12 re-threaded to M12-1.25. Since it has a soft rubber o-ring seal, it is only tightened by hand. So the threads do not need much strength. This allows the weakened re-threads to work.

 

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A14. 12x1 female spigot down

 

Links to photos of examples:

1977 Batavus VA original
1978 Kreidler MP-9 with spigot down
1978 Sears Free Spirit silver original
1978 Sears Free Spirit red original
1979 Columbia 2220 with spigot down
1980 Concord Freedom with spigot down
1988 Motomarina Sebring original

This valve fits many mopeds. It is sometimes called “universal”, but it is not truly universal.

 

 

 

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A15. 12x1 female spigot back

Links to photos of examples:

1977 Garelli Sport original made by BAP
1977 Moto Guzzi Chiu original (lies above engine covers)
1978 Garelli Rally Sport original
1978 JC Penney Pinto original
1979 Batavus Starflite original
1980 AMF Roadmaster 130 original
1980 AMF Roadmaster 130
1980 Garelli VIP original
1983 Garelli Basic original (lies below engine cover)
1984 Garelli Basic original, needs long reserve tube due to the tank extension
1984 Garelli Monza GT original

 

 

 

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A16. 12x1 female spigot back with clear trap

Links to photos of examples:

1978 Honda PA50 Hobbit tank
1978 Honda PA50 Hobbit original
1993 Hero Panther original
2002 Whizzer with the tank hole drilled bigger

This valve has a clear sediment trap. Anything heavier than gasoline, like water, dirt, rust settles at the bottom. The trap not only filters, but allows visual monitoring of the fuel for purity.

Whizzer The 2002 Whizzer tank takes a 12×1 thread gas valve. But the original Whizzer valve has no reserve tube or fuel filter. To have those, the 6.3mm hole can be drilled to 7.0mm. Here it is shown with a A16 “spigot back” type valve, but a A18 “spigot right” type would be better.

 

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A17. 12x1 female spigot left

Links to photos of examples:

1978 Sachs Westlake with spigot left
1978 Cimatti Town Bike original
1979 Batavus Starflite with spigot left
1979 Sachs Balboa with spigot left
1979 Columbia 2250 (tube frame, Solo engine)
1979 Columbia 2260 (tube frame, Sachs engine)
1980 Sachs Seville original
1980 Sachs Prima original
1985 Tomos Bullet original
1994 Tomos Sprint original
1998 Tomos Sprint original
2000 Avanti Autopower original
2001 Avanti Kobra original
2001 Avanti Super Sport original

Columbia with tube frame:The original valve on a Columbia Commuter (tube frame) was a vertical mount valve, mounted in the sideways position. So the valve faces up, instead of sideways. That is not bad, but the poor handle gets kicked easily since it is right where you step through the frame at. The original valve had a reserve tube that curved upward, like on a Puch side mount. The replacement valve has a short straight reserve tube. Sideways installation disables the reserve feature. Optionally, a longer curved soft aluminum reserve tube is available. See below.

 

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A17b. 12x1 female spigot left with extended round knob

Links to photos of examples:

2007 Tomos LX

This valve was made to replace Tomos 229.455, on 1994-2013 top tanks. Before 1994 was 10×1 male.

 

 

 

 

 

 

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A18. 12x1 female spigot right

Links to photos of examples:
1976 Flandria Bermuda Hampton (cover hole widened)
1977 Flandria Bermuda Hampton (no cover no petcock)
1978 Flandria Bermuda Pembroke
1978 Vespa Bravo original
1978 Vespa Bravo gas tank original
1978 Cimatti City Bike (when 10-12 adaptor is there)
1978 JC Penney Pinto (no petcock)
1979 Columbia 2220 (sheet frame) original
1979 Columbia 2220 (sheet frame) with spigot down
1979 Batavus Starflite with spigot right
1982 Batavus Mondial with spigot right
1980 Columbia Medallion (top tank) original
1981 Murray 8320 original
Tomos 233727 gas valve original
2007 Tomos Sprint with 233727

Columbia sheet frame: The sheet metal frame Columbia is different from a tube frame Columbia. It can have different marketing names. Original valve was spigot right, but down, back, or left also fit.

Tomos A55: All Tomos models with the A55 engine have a 12×1 spigot right gas valve #233727, above the left side of the engine. Earlier A35 models had a opposite valve on the opposite side. 

Vespa Bravo: This screw-on valve is for Vespa Bravos with a metal tank. Some have a plastic gas tank, with a different gas valve than this. See clamp-on valves below.

Flandria Bermuda: Bermuda (made by Flandria) mopeds use this vertical 12×1 spigot right valve, but in the horizontal position. There is no reserve function. The owners manual says that either rear or forward is closed (off), and outward is open (on). The valve handle is protected behind the cover. There is a finger width long slot in the right cover, for one-finger access. 

 

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A19. 12x1 female spigot back short extended knob

Links to photos of examples:

1985 Garelli Rally SL original
1985 Garelli Rally SL original

Garelli 1980-86: This valve is made for the 1980-86 Garelli Sport, Rally Sport, Rally SL step-thru models with side panels that cover everything up to the bottom of the gas tank. The valve handle shaft passes through a hole in the panel.

The replacement sticks out a few mm farther than the original. Not bad.

 

 

 

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A20. 12x1 female spigot left medium shaft

Links to photos of examples:

1978 Moto Guzzi Robin original
1979 Benelli G2 original
1995 Tomos Targa original
1998 Tomos Targa original
2005 Tomos ST original

Benelli G2 The valve shaft sticks out of a small hole in the plastic side cover. The handle knob must be pryed off (with two screwdrivers on opposite sides), to get the shaft through the hole in the plastic side cover. The valve must be aimed just right. It might take 2 or 3 guesses to get the shaft aimed at the hole. Then the plastic cover is replaced, and then the handle knob is pressed back onto the shaft.

 

 

 

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A21. 12x1 female spigot right medium shaft

Links to photos of examples:

1978 Baretta 44 original
1978 Vespa Grande original
1979 Vespa Grande frame with no valve
1979 Vespa Grande with spigot right
1980 Vespa Si original
1985 Vespa Si frame with original valve

Vespa Grande: The Vespa Grande has a vertical type valve, but it is mounted at an angle of about 60 degrees from vertical, or “2 o’clock”, as seen in the red frame photo. Although the spigot direction is wrong, this still works fine on a Vespa Grande. The gas has to go uphill a little at first, but the gas hose stays below the bottom of the gas tank (when routed under the throttle cable like shown below). So it will flow gasoline all the way to empty.

Tomos Targa: While the Tomos Targa valve works on a Vespa Si, the opposite is not true. The Tomos engine is too close, unless the cover is left off and the valve is rotated.

 

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A22. 12x1 female spigot right long shaft

Links to photos of examples:

1978 Benelli G2, A22 is too long

Benelli G2 This A22 valve has a round aluminum shaft that is 56mm long, too long for a Benelli G2 or Moto Guzzi Robin. It needs to be 15 to 25mm shorter. Use A20.

 

 

 

 

 

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A23. 12x1 female side mount Ciao

Links to photos of examples:

1974 Vespa Ciao frame

This valve fits a Vespa (Piaggio) Ciao. It can also fit a Puch Maxi type frame, but the upper filter hits the inside upper wall of the Puch gas tank. The reserve tube, which is a light press fit, can simply be rotated so it is not aimed straight up, to allow a Ciao valve to fit a Puch.

 

 

 

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A24. 12x1 female side mount Maxi

Links to photos of examples:

1976 Intramotor-Gloria Blanco original
1977 Intramotor-Gloria Blanco original
1977 Puch Maxi Sport original
1978 Puch Maxi original
1978 Puch Sport MKII with A24b
1984 Puch Maxi Sport LS original

Puch Maxi: The most popular 1970’s moped in the USA uses this valve. Puch Maxi and Maxi equivalents GN, Rigid, Sport, Sport MkII, Newport, Newport-L, Newport II and Maxi II all have the same sheet-metal gas tank built into the frame. The gas valve is on the right side mounted horizontally. 

 

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A25. 14x1 female spigot down

Links to photos of examples:

1980 Honda NA50 Express II original
1980 Yamaha QT50 (left is A25 substitute, right is original)

This spigot down valve was original on 1979-81 Honda NA50 Express II. It also replaces the original spigot left on Honda NC50 Express, and the original spigot right on Yamaha QT50 Yamahopper.  

Honda Design: Note that the little arrow on the handle points opposite to the handle. So off is arrow left (handle right), on is arrow up (handle down), reserve is arrow down (handle up).

This valve has a 6.0mm spigot, for 3/16″ (4.8mm) hose.

 

 

 

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A26. 14x1 female spigot left

Links to photos of examples:

1978 Honda NC50 Express original valve
1980 Honda NC50 Express original
1981 Honda NC50 Express original

This spigot left valve was original on Honda NC50 Express. It also substitutes for other 14×1 thread valves, including Yamaha QT50 (spigot right), Honda NA50 (spigot down), Trac Eagle (side mount), and most Taiwan-made mopeds (mostly spigot back).

Honda Design: Note that the little arrow on the handle points opposite to the handle. So off is arrow left (handle right), on is arrow up (handle down), reserve is arrow down (handle up).

This valve has a 6.5 mm spigot, for a 3/16″ (4.8mm) hose, or a 1/4″ (6.3mm) hose with clamps.

 

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A27. 14x1 female spigot right

Links to photos of examples:

1978 Moprix top tank original
1980 Yamaha QT50 (left is A25 substitute, right is original)
1979 General 5-Star ST original (use A28 or A26)

This valve configuration was original on Yamaha QT50, early Yamahas and Hondas, and early Taiwan mopeds. It can replace other 14×1 thread valves, in most cases.

This motorcycle fuel valve has a 7.7 mm spigot, for 1/4″ (6.3mm) fuel hose.

Honda Design: Note that the little arrow on the handle points opposite to the handle. So off is arrow left (handle right), on is arrow up (handle down), reserve is arrow down (handle up).

 

 

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A28. 14x1 female spigot back

Links to photos of examples:

1977 Lazer Sport 50 original
1978 AMS Sierra 50 original
1984 Trac Image original
1985 General 5-Star original

Many of the original valves had poorly made cast nuts. The nuts were too big and also weak. When fully tightened they would strip. Some have good nuts, but after 35 years the rubber seal disk inside is brittle and deformed. All of the mopeds listed that came with a spigot-back gas valve, can take a less expensive spigot down or spigot left valve.

The A28a valve has a 7.7 mm spigot, for 1/4″ (6.3mm) fuel hose.

Honda Design: Note that the little arrow on the handle points opposite to the handle. So off is arrow left (handle right), on is arrow up (handle down), reserve is arrow down (handle up).

 

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A29. 14x1 female side mount

Links to photos of examples:

1983 Trac Eagle original (installed at an angle)

The upper valve is an original Trac 14×1 side mount, made in Korea.
All their inner seal disks have decomposed.
But there is a replacement inner seal disk D2 for $8 see below.

The lower one is a modern Honda substitute, made in China. It is a 14×1 vertical mount spigot left mounted sideways. The cover panel must be removed, or a large hole cut, to allow access to the substitute valve. There is no reserve capacity on the substitute, since the reserve tube is horizontal. 

 

 

 

 

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A30. 14x1.25 male spigot down

Links to photos of examples:

1978 Derbi Laguna original
1980 Derbi C5 Diablo original
1985 Derbi RD50 original

This motorcycle valve has a 7.7 mm spigot, for 1/4″ (6.3mm) fuel hose.

 

 

 

 

 

 

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A31. 16x1 female spigot down

Links to photos of examples:

1956 Puch VS50 (Euro)
1963 Sears Allstate original
70’s Sparta Buddy original
1977 Sparta Foxi original

 

 

 

 

 

 

 

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A32. 16x1 female spigot back

Links to photos of examples:

1982 Jawa Supreme with A31 spigot down
1979 Kynast Flying Dutchman original
1978 Puch Magnum original Karcoma
1986 Puch Cobra original
1977 Solo Odyssey with spigot left
70’s Sparta Lucky (Euro)

 

 

 

 

 

 

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A33. 16x1 female side mount

Links to photos of examples:

1977 KTM Foxi original
1978 KTM Foxi original

The A33 upper valve is an original Paoli 16×1 side mount valve, made in Italy. All their polyurethane inner seal disks have decomposed, even on the last few new valves.

The A32 lower valve is a modern OMG substitute, made in Italy. It is valve A32, a 16×1 vertical mount spigot back, mounted sideways.  The cover panel must be removed, or a large hole cut, to allow access to the substitute valve. There is no reserve capacity on the substitute, since the reserve tube is horizontal.

 

 

 

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A34. 16x1 female spigot back

Links to photos of examples:

1977 KTM Foxi original
1978 KTM Foxi original

This is valve A32 with a curved-up aluminum reserve tube added, for side mount use on KTM.  The cover panel must be removed, or a large hole cut, to allow access to the substitute valve. There is a reserve capacity on this valve, because the reserve tube curves upward. So the “on” inlet is 2 inches higher than the “reserve” inlet. The bottom 2 inches of the gas tank would be reserve.

 

 

 

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A35. 16x1.5 female side mount

A  turnbuckle nut    $4.$$ M16-1.5 R and L
B  outer seal ring     none  12 x 16 x 2
Bs  B substutute     $1.50 13 x 17 x 2
C  valve body  xxx  $$.$$ 20.9 ID
D  trap filter disk    $$.$$ 19 x 1.5
E  trap seal ring  x  $1.50 15 x 19 x 2
F  trap cup xxxxx    $$.$$ M20-1.0 thread
G  seal disk xxxx    $9.  0 20.5 x 3.25 4-hole D10
H  handle plate x    $$.$$ 21.3 OD
I   wave washer (2) $$.$$ 20 x 16 x 0.3
J   face plate  xxxx  $$.$$ 17 ID
K  face screw (2)    $$.$$ M3 x 6

A35 is an original Indian 16×1.5 side mount, made in Taiwan. All 3 rubber seals have decomposed.

The 2 seal rings do not normally leak if they are undisturbed, but the seal disk does. There are two ways the seal disk can leak.

1) It can keep supplying the carburetor with gasoline when in the OFF position. This leak can be stopped temporarily by pinching the fuel hose with a small vise grip or C clamp.

2) It can leak gasoline outside of the valve when the handle is in any position. Other things besides the seal disk can cause this kind of leak. Some of those things are: improper assembly, damaged handle plate, missing wave washer, damaged valve body, pieces of the old seal disk still stuck to the valve body sealing surface.

 

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A36. 16x1.5 female spigot right

This is a vertical mount valve for some 60’s and 70’s Honda motorcycles and ATV’s.

Indian valve substitute: The threads fit an Indian 4-stroke moped. This valve A36 will substitute for an Indian gas valve A35, but the cover panel would have to be left off. With the cover on you cannot reach the handle.

Honda Design: Note that the little arrow on the handle points opposite to the handle. So off is arrow left (handle right), on is arrow up (handle down), reserve is arrow down (handle up).

 

A36 is a modern substitute 16×1.5, made in Taiwan. It is a vertical design, mounted horizontal. The cover panel must be removed, or a large hole cut, to allow access to the substitute valve. There is no reserve capacity on the substitute, since the reserve tube is horizontal.

A36a is valve A36 with a added aluminum reserve tube that curves upward.

 

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A37. 16x1.5 female spigot down

In most cases, spigot right (above) can substitute for spigot down. The valve can be aimed at any angle, so “right” can become “back”.

Honda Design: Note that the little arrow on the handle points opposite to the handle. So off is arrow left (handle right), on is arrow up (handle down), reserve is arrow down (handle up).

 

 

 

 

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A38. 22x1 female spigot down

Links to photos of examples:

1978 Jawa 207 original
1979 Jawa 207 original

The chrome replacement Jawa petcock A38 is at left. Original is at right.

The side cover must be removed and left off, to use the replacement.

 

 

 

 

 

 

 

B. Non-screw-on Gas Valves

 

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B1. 13 push-in (clamp-on) spigot right

Links to photos of examples:

1976 Vespa Bravo with plastic tank, original
2001 Tomos TX50 original
2003 Tomos MC50 original

This valve is for Vespa Bravos with plastic gas tanks (some 70’s European models and some 1976-77 US models), and for Tomos off-road models. Tomos #237248. It is all metal, well made, and not prone to breaking like the black plastic ones are.

 

 

 

 

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B2. 15 push-in (clamp-on) spigot down

Links to photos of examples:

1983 Derbi Variant SLE original

This valve replaces side-mounted Derbi Variant valves. It’s a vertical valve, but on a Derbi it is in a horozontal position. Since there is no curved-up reserve tub, there is no reserve. An aluminum curved-up reserve tube is optional for $12 more.

 

 

 

 

 

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B5. 12 push-in (clamp-on) spigot back

Links to photos of examples:

1997-2000? DiBlasi R7E  folding mini-cycle #2024 spigot back, clamp #166

This B5 petcock #2024 was on  left side of 1997-00? DiBlasi R7E
Before that, A5  #141  was on  left side of 1989-97  DiBlasi R7TB
Before that, A5  #141  was on  left side of 1982-89  DiBlasi R7WT
Before that, A5  #141  was on  left side of 1979-82  DiBlasi R7ST
Before that, A3  #102 was on right side of 1974-79  DiBlasi R2

 

 

 

 

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B6. 12 push-in (clamp-on) spigot right

Links to photos of examples:

2001?-on DiBlasi R7E-V2  folding mini-cycle, #2091 spigot right, clamp #166

This B6 petcock #2091 was on left side of 2001?-on DiBlasi R7E-V2
Before that, B5 #2024 was on  left side of 1997-00? DiBlasi R7E
Before that, A5  #141  was on  left side of 1989-97  DiBlasi R7TB
Before that, A5  #141  was on  left side of 1982-89  DiBlasi R7WT
Before that, A5  #141  was on  left side of 1979-82  DiBlasi R7ST
Before that, A3  #102 was on right side of 1974-79  DiBlasi R2

 

 

 

 

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B13. Bolt-on valve for Angel

Links to photos of examples:

1973-74 Honda PM50 Novio/Canguro sheet-frame moped
1973-74 Honda PM50 Novio/Canguro sheet-frame moped
PM50 gas valve 16950-122-000 offered at cmsnl.com
1977 Angel AP48 (Honda PM50 remake)
1978 Angel AP48 (Honda PM50 remake)

This side-mount bolt-on valve is scarce and not available for sale. Only these two leaking used ones exist at Myrons Mopeds. This petcock uses a D2 inner seal disk. See below.

Son of Honda PM50: The 1977-79 Angel AP48, made in Taiwan by TYM, is a remake of a 1973-74 Honda PM50, made in Belgium. The PM50 was not sold in the US. Some are called Novio and some are Canguro. The name Novio was also on PF50, a completely different bike and engine. 

 

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B15. Inline (Remote) valve for Trac

Links to photos of examples:

1983-85 Trac Hawk (Laura M56 engine w/pedals) original
1983-85 Trac Clipper (Laura M56 engine w/pedals) original
1984-89 Trac Image (Daelim DK50 engine no pedals) original
1984-88 Trac Escot (Daelim DK50 engine no pedals) original
1986-86 Trac Hawk (Daelim DP50 engine w/pedals) original
1987-89 Trac Sprint (Daelim DP50 engine w/pedals) original
1986-89 Trac Clipper (Daelim DP50 engine w/pedals) original

More than half of these Korean made NOS gas valves have cracks or are broken. These are ones that have been inspected and tested.

This petcock uses a D2c inner seal disk, a D2 with the holes widened. See below.

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B16. Inline (Remote) valve for Suzuki Shuttle

Links to photos of examples:

1982 Suzuki FA50 Shuttle original

This is for information, not for sale. None are available.

 

 

 

 

 

 

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C. Gas Valve Parts

 

Inline Fuel Filters

.
C1 3/16″ inline filter, round screen type, 12-1585 $4

 

.
C2 1/4″ inline filter, round screen type, 15-1520 $5

 

.
C3 1/4″ inline filter, 90 deg paper type, 15-1796 $3

 

Screw-on Adaptors

C4: 10×1 male to 12×1 male adapter $20

Sometimes a gas tank has a 10 x 1 threaded gas valve hole that is close to a “wall”, preventing the gas valve from screwing on or off, unless the tank is removed. Sometimes removal of the tank is very difficult, like on a Cimatti City Bike. In those cases an adaptor fitting can be used to convert to a turn-buckle type gas valve, where only the nut turns. 

A 5/16″ OD hydraulic tube fitting has a 1/2-24 thread, that can be cut down (rethreaded) to 12 x 1.  The end cap is not used. Then it becomes a moped gas valve adapter. A tight-fitting 10mm washer made of plastic, paper, or other semi-hard material provides the seal, not the threads. The 12×1 die is not in most metric die sets.

 

 

Screw-on Extenders

What is an extender and when is it needed? An extender is a piece that moves the screw-on valve away from the tank. Most original valves had reserve pointing up, ↑reserve  off→ on↓. Original valves with an up position often had to be moved away from the bottom of the tank with an extender, to allow the handle to go straight up and not hit the tank. Some tanks had a welded-on extender, a short pipe with a 10×1 threaded hole. Some original valves had screw-on extenders.

Most modern replacement valves do not have an up position, ←reserve  on↓ off→. That eliminates the need for an extender, a cost saving improvement.

 

C5: 10×1 to 10×1 extender, 26mm extension $20

This 26mm long extender is one piece brass. It includes a soft rubber seal ring and metal cup.

It can be made from pipe fittings found in American hardware stores, by rethreading 1/8 inch NPT to metric 10 x 1 and soldering.

 

C7: 10×1 to 10×1 extender, 15mm extension $10

This 15mm short extender is one piece aluminum. The upper rubber ring and metal cup are included, but not shown here. That upper rubber seals against the tank.

 

C8: 10×1 to 10×1 extender, 20mm extension $18

This 20mm medium-length extender is one piece aluminum or brass. It includes a soft rubber seal ring and metal cup.

Like the C5 extender, these are also made from re-threading a 1/8″ NPT pipe fitting.

 

 

Seal Rings

C13 seal ring    10-14 x 6  w/metal cup 10.4-16-4.5  $2
continued soft, for light tightening, seals over a wide range

C14 seal 0-ring 10-15-2.5 w/metal cup 10.4-15-3.5  $2
continued soft, for light tightening, seals over a wide range

C15 seal ring   10.0 id, 13.7 od, 1.8-2.3 tall nylon $2.00
continued hard, can hold up to tightening pressure

C16 seal ring     7.5 id, 10.5 od, 1.7-2.1 tall nylon $2.00
continued hard, can hold up to tightening pressure

C17 seal ring     7.9 id, 10.4 od, 1.4-1.8 tall fiber  $2.00
continued hard, can hold up to tightening pressure

C18 seal ring     8.0 id, 11.7 od, 0.0-1.0 tall fiber  $2.00
continued hard, can hold up to tightening pressure

Many more of these are listed in Parts/Engine/Seals and O-Rings

 

Turnbuckle type nuts (forward and reverse thread)

These special nuts have “forward” right-hand thread on one side and “reverse” left-hand thread on the other side. The left thread side screws onto the valve, and the right thread side screws into the tank. This allows a screw-on valve to be tightened without the valve turning, and allows the valve to face any direction 360 degrees after tightening.

C20: 22 x 1 internal right to 22 x 1 internal left  turnbuckle nut   $7 chrome

C21: 16 x 1 internal right to 16 x 1 internal left  turnbuckle nut   $2

This turnbuckle type (LH and RH) nut is used on all 16mm female (internal-thread) moped gas valves.

C21a: 14 x 1 internal right to 14 x 1 internal left  turnbuckle nut   ??

C22: 12 x 1 internal right to 12 x 1 internal left  turnbuckle nut   $1

This turnbuckle type (LH and RH) nut is used on all 12mm female (internal-thread) moped gas valves. 

 

C23: 22 x 1 internal right to 16 x 1 internal left  turnbuckle nut   N/A

This new nut was made improperly. The 16 x 1 left thread ID is to big (so it would strip off the soft alloy threads of the petcock when fully tightened) and the center-line is not straight (so the sealing surface of the petcock is at an angle to the sealing surface of the tank).

C24: 16 x 1 internal right to 12 x 1 internal left  turnbuckle nut   N/A

There are two things to watch out for with these dual diameter dual thread nuts.

1. There are two ring-shape sealing surfaces on the petcock that must be close to the same height when the nut is fully tightened. The outer 

2. The ring-shape sealing surface on the gas tank must be wide enough to press against both of the petcock sealing surfaces.

 

Hoses and Parts

C29 clear nylon hose 3/16″ id 5/16″ od $1/foot fits moped spigots 5mm, no clamps

C30 soft aluminum tubing 1/8″ od $0.50/inch for making reserve tubes, longer or curved upward
continued easily bent, often must be ground slightly for press fit into hole

C31 “Y” connector for 3/16″  hose $3 for joining two fuel lines into one upward
continued for making a clear hose external fuel gauge, or for dual gas tanks

Inner Seal Discs

These rubber disks are hard and deteriorated after 30 years. The rest of the petcock is metal and lasts forever, or has round seal rings that are relatively easy to find.

Cross Referencing Hopes: The sizes, applications, and possible sourcing of these vital rubber disks is being studied. It is hoped that some of the common moped gas valves might use the same rubber seal as some kinds of Honda, Kawasaki, Suzuki, Yamaha, or others. When that information becomes available, it will be posted here. Then anyone could order a seal disk for a small brand name bike from a big brand name parts supplier. 

Flipping: Old rubber inner seal disks get hard, shrink, and become deformed. Some can be flipped over to expose a fresh unused side.

Vintage Karcoma: Left, an actual original 1970’s Karkoma (Germany) gas valve from a 1979 Kynast moped, with only 50 miles of use. 30+ years of sitting with old, rotten gasoline premix has completely clogged the passageways with hard tar, and decomposed the seal disk to where it broke when the valve was disassembled. Part of the seal disk shaped like a smile broke off and stuck to the movable plate with handle. Usually when these get sticky the handle ends up getting snapped off, in addition to the seal disk crumbling and the holes clogged.  This is the kind that uses a 3.3mm tall lip on the outer edge of the 2.0mm tall by 13.7mm diameter seal disk D4. Later 1980’s Karkoma valves did not have the lip. For those the D4 early seal disk lip must be carefully ground off. Even the last few new old stock 1970’s Karkoma seal disks, once clear orange, now cloudy gold, are brittle and crack and crumble easily in your fingers. Too bad. That is why disk D4 is N/A not available.

 

 

 

 

 

 

 

 

 

 #  price  OD x thickness   Fuel Petcock Inner Seal Disks
D6a N/A    13.4 x 2.3  shrunk aftermarket
0D4 N/A    13.7 x 2.0  3.3 outer lip, 70’s Karkoma (Germany)
0D7 N/A    13.7 x 2.0  no outer lip, 80’s Karkoma (Germany)
0D9 N/A    13.9 x 1.6  3-hole 3-lips OMG (Italy)
D5a N/A    14.9 x 3.2  shrunk unknown
0D2 $$8   16.3 x 3.0  4-hole Honda 16957-ZE1-812 fits many
0D2 $00   16.3 x  3.0 replaces Honda 16955-011-010
0D2 $00   16.3 x  3.0 replaces Honda 16955-028-004
0D2 $00   16.3 x  3.0 Trac Eagle (Korea), Angel (Taiwan)
D2a N/A    15.8 x 2.8  shrunk D2 from ’65 Honda CA200
D2b N/A    16.2 x 2.8  shrunk D2
D2c $22   16.3 x 3.0  D2 with the 4 holes widened
0D8 $12   18.8 x 3.1  3-hole blue Derbi (Spain) valve=18.5
D8a $$5   18.6 x 3.0  shrunk D8
D19 N/A    18.8 x 2.4  KL-18-6646 Kawasaki 43049-1017 
0D1 N/A    19.3 x 3.0  8-hole Honda 16115-001-004 60’s Cub

D10 $$9   20.4 x 3.3  Honda 16955-268-020 another view
D10 $$$   20.5 x 3.2  4-hole Indian (Taiwan) for A35
0D3 $$7   22.0 x 2.3  Piaggio 013836 vintage Vespa scooters
D11 N/A    22.3 x 3.5  4-hole General (Taiwan) for A28
D17 N/A    22.6 x 2.4  KL-18-6644 Kawasaki 11009-1188
D18 N/A    23.0 x 2.4  KL-18-6645 Kawasaki 43049-1066
D16 N/A    28.5 x 2.4  KL-18-6643 Kawasaki 11009-1194
D21 N/A    00.0 x 0.0  Honda 17993
D22 N/A    00.0 x 0.0  Honda 16955-HA2-005  close up view
D24 N/A    00.0 x 0.0  Kawasaki 92065-094
D25 N/A    00.0 x 0.0  Kawasaki 92065-055
D26 N/A    00.0 x 0.0  Suzuki 44341-18450
D27 N/A    00.0 x 0.0  Suzuki 51455-010
D28 N/A    00.0 x 0.0  Yamaha 47X-24523-00
D29 N/A    00.0 x 0.0  Yamaha 137-24523-00

 

 

 

 

 

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D. Gas Valves Info

 

Fuel Valve (on tank): On or near the bottom of nearly every moped gas tank is a “petcock” or “gas valve” that has a lever or knob for manually shutting the fuel supply off, for when the bike is stored or transported. The reason for the shut off valve is gravity. Moped and most motorcycle gas tanks are higher than the engine and use gravity to move the gasoline out of the tank, instead of a fuel pump. The higher the liquid fuel level is above the carburetor, the higher the fuel pressure will be. If the the tank is too low, or the carb too high, no gas will come out, or it will even flow backwards. Everyone knows that liquids only flow downhill.

Vacuum Petcock (on tank): On most modern scooters and motorcycles the fuel valve is an automatic type, operated by the vacuum from the engine. When the engine stops, or whenever the suction in the vacuum line stops, the petcock shuts the gas off.

Float Valve (inside carb): In addition to the fuel valve, there is an second device, called the float needle or float valve, in the carburetor that shuts off the gas supply automatically. On a new bike with a new carburetor and clean gasoline, the float valve works all the time, so there is no need to turn the gas valve off after each use. On most old mopeds, the float valve leaks sometimes, and needs the operator to manually turn the gas valve off after each use to prevent gasoline from leaking out.

On-Off-Reserve: Besides turning the gas on and off, most gas valves also have a third position called “reserve”. Reserve is for when the tank is very low on gas. A little tube 1 or 2 inches long sticks up from the gas valve, inside the tank. When the gas is on “ON”, it exits from the upper end of the tube. When the level of gasoline drops below the tube, no more gas comes out, and the engine dies. This is called “hitting reserve”. The operator then switches the gas valve to “RESERVE”, which make the gas exit from the lower end of the reserve tube, at the very bottom of the gas tank. There is about 5 or 15 miles of gasoline available on reserve, enough to find a gas station. If a gas tank  has rust crumbs, powder, or water droplets at the very bottom, it is better to not use the reserve because it lets dirt get through and will clog easily.

Fuel Valve Types

Bolt-on: Most modern motorcycles use the bolt-on design, where the tank has two small threaded 6mm bolt holes spaced about 30-35mm apart, with a 10mm main hole in the middle. A race track shaped rubber ring provides the seal. Angel (made in Taiwan by Tym) is the only pedal moped with a bolt on fuel valve. For some reason, bolt on fuel valves are rare on mopeds, but common on motorcycles.

Screw-on: Almost all mopeds use the screw-on design, where the tank has either a hole with internal threads, (female tank) or a fitting with external threads (male tank). Screw-on fuel valves do not seal at the threads like pipes, but rather have a sealing surface perpendicular to the threads, for a soft paper or plastic washer. They are tightened enough to compress the seal washer.

“Female” screw-on fuel valves for external thread tanks have the ability to point in any direction, because the valve main body does not screw on, instead only the nut turns. The special nut is a “turnbuckle style” in that it has right hand threads on one end and left hand threads on the other. This allows the valve to fit in tight places. It also means the nut has a top and bottom and won’t go on upside down, unlike a regular nut.

“Male” screw-on fuel valves for internal thread tanks also have the ability to point in any direction. When the seal washer is soft rubber and thick, and retained by a metal cup, it seals even when the valve is slightly loose and somewhat free to rotate.

Clamp-on: A third type of gas valve is clamp-on, found on Derbi mopeds with a plastic gas tank. It seals against the tank exit pipe semi-flexible soft plastic walls by o-rings squeezing radially inward by a hose clamp.

Spigot Direction:  L = left    R = right    D = down    B = back  (as you face the valve). Some models have room for more than one spigot direction. Many mopeds can have any spigot direction, because there is nothing near the petcock that interferes with the fuel hose. Then there may be choices. Other kinds are only available in one spigot direction. Sometimes an original valve that was “spigot down” must be replaced with one that is “spigot left”, and a longer piece of fuel line installed. Sometimes, if the valve is angled, and the spigot direction of the replacement valve is uphill, the new valve can affect fuel flow when the gas tank is really low. If it cannot be rotated and angled more spigot level or downwards, then the lower part of the tank will become unavailable when the liquid level reaches the highest part of the fuel line. That is, it will run out of gas prematurely.

Naming of Gas Valves: Many screw-on gas valves sold online are named by their true size (11,13, or 15mm), rather than their nominal size (12, 14, 16mm). This is a big source of confusion. For a bolt (external or male thread) the nominal (named) size is the true size, so an M6 (metric 6mm) bolt has a diameter of 6mm. But for a nut (internal or female thread), the nominal size is greater than the true size. An M6x1 nut has an internal diameter of 5mm. A 1/4 -20″ nut has an internal diameter of 0.20 inch, not 0.25. The difference between the external and internal diameter is approximately equal to the thread pitch. So a 12×1.00 nut measures 11.00mm inner diameter, while a 12×1.50 nut measures 10.5mm.

Gas valve low cost substitutes:  USA plumbers will recognize that the moped gas valve M10x1 thread is close to 1/8″ (named after the small inner diameter) National Pipe Thread Taper NPT . Because of the taper, a brass 1/8″ NPT (27tpi = 0.94mm) screws on and fits the 10×1 thread OK, because it’s about 9.5mm at first, tapering to 10.2mm. With teflon pipe thread tape, any 10×1 thread gas tank can be adapted with American standard pipe pieces, including shut-off valves. All of those things are sold in home improvement stores nationwide. The good side is those pipe pieces are inexpensive and easy to get. The bad side is they must be cleaned up and re-taped every time they are screwed on and off, and they don’t have any reserve feature. 

Gas valve outer seals: Screw on gas valves, unlike plumbing pipes, seal by a soft or semi soft ring, that is squeezed between the gas tank and the gas valve, as the valve or nut is screwed on tight. Plumbing pipes seal by the threads only, and don’t need a flange and soft ring. The sealing surface on both the tank and the valve must be flat and straight. If a gas tank has a damaged sealing surface, then the outer seal might leak, even when the seal and valve are fine. The remedy for a warped, misaligned or scratched sealing surface, on either the tank or the valve, is careful grinding with a flat spinning disk (with all gasoline evacuated).