Myrons Mopeds

A6. 10x1 male spigot back medium shaft

A6 10×1 spigot back
medium shaft
01b1402283b  $15
←reserve  on↓ off→
Italy-made by OMG

NVT original 10×1 back,
long detachable shaft

Links to photos of examples:

1977 NVT Easy Rider
1978 Scorpion SC2
70’s Solex 8000 Tenor (Laura M54)
74-75 Solex Tenor 8000 (Laura M56)

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 an 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. 

A5. 10x1 male spigot right

A5 10×1 spigot right
1b15001017  $15
←res  on↓ off→ 
Italy made by OMG

Links to photos of examples:

1976 Itom Automatic
1978 Safari Super Extra
1978 Pacer Sport (original was A8)
1979-89 Di Blasi R7     #141 on left side
1989-97 Di Blasi R7TB #141 on left side
1996 Di Blasi R7 original

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

A4. 10x1 male spigot left

A4 10×1 spigot left red
01z2351035  $15
←reserve  on↓ off→,
made in Italy by OMG

A4b 10×1 spigot left
403200  $19
←reserve  on↓ off→,
made in Taiwan by FS

Links to photos of examples:

1977 Motobecane frame A4b replacement
1978 Gitane Sport original
1978 Motobecane frame replacement
1978 Motron Classic A4b replacement
1976 Bianchi Snark original

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. See above valve A3.

Cutting the Motobecane side cover to fit an OMG petcock

A3. 10x1 male spigot back

A3 10×1 spigot back
01z2291092  $15
←reserve on↓ off→
made in Italy by OMG

Cutting the Motobecane left side cover to make room for an OMG replacement petcock

Links to photos of examples:
71-73 Broncco Diablo original
1977 Malaguti Commuter original
1977 Malanca Roxi original
1978 Maico original
1978 Malaguti Commuter original
1978 Baretta 38 (and 22) original
1978 Baretta Magnum (top tank)
1978 Motobimm original
1978 Yankee Peddler original
1979 Cosmo Colt original
1979 Motobecane 50V original
1977 MB 50V orig made by Quiet
1980 Cosmo Colt 3 original
1985 Safari 300MT Turbo replacement
1987 Motomarina Raven (monotube)

A3 or A4 for 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. 

Side cover grinding: With all replacement petcocks the Motobecane 50 or 40 left side cover must be modified. The front side of the petcock slot must be have about 1/8″ (3 mm) cut off.  See the above photo.

A2. 10x1 male spigot down

A2 10×1 spigot down
01z2231010  $15
←reserve on↓ off→
made in Italy by OMG

A2b 10×1 down
red handle  none
←res  on↓ off→

Links to photos of examples:

1965-66 Harley Davidson M50 replacement
1977 Pacer Deluxe (P14) original
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
1978 Motobecane Model 7 original
1978 Motobecane Model 7 with A2b

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. 

Motobecane 7 rear tanks have a side wall that is very close to the petcock threaded hole. Modern petcocks are too wide to screw in unless they are first disassembled. Once the handle, face cover, nut, spring and shaft-plate are carefully removed, the bare valve body is small enough to screw into the tank. Then the pieces must be put back in the same order and orientation as they came out.

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 or down valve instead.

A1. 8x1 male spigot L or R push-pull

A1 8×1 push pull
01z2225169  $15
in is on, out is off
Italy-made by OMG

Links to photos of examples:

1960 Wards Riverside original
1965 Motobecane AV79 original

Taiwan-made mopeds have steering locks. They lock the fork in the turned position. Some also have an electrical switch that disconnects the battery. Like the rest of the bike the fork lock is the same as on some Japan-made motorcycles or mopeds. The locks have a key number stamped next to the keyhole. Missing keys can be ordered by the key number on the lock.

Contents:  8 Key Families

1. 00 000,00000 243-250 Indian gas key
2.  00 0 241,242,352-358 Indian gas key
3. 0,0 0000,000000-0459 General gas key “groove left”
3. 0,00 000,007540-7546 Indian “groove left”
4. 0,0 0000,000000-0719 Lazer gas key “groove right”
4. 0,00 000,005540-5546 Indian “groove right”
5. 7650-7659, 7750-7759 General “thin groove left”
6. 7660-7669, 7760-7769 General “thin groove right”
7. 7670-7679, 7770-7779 General “flat left”
8. 7680-7689, 7780-7789 General “flat right”

1. 243-250 Indian gas key

blank  $4.00 BN7

0000  original  copy
243    none    $13.0 .
244    $16.0   $13.0 .
245    none    none  . 
246    none    none  .
247    none    none  .
248    none    none  .
249    none    none  .
250    $16.0   $13.0 .

2. 241-242, 352-358 Indian gas key

blank  none  M12 

0000  original  copy
241    none    $13.0 can make
242    $16.0  $13.0 can make
352    none    none  .
353    none    $13.0 can make
354    none    none  .
355    none    none  .
356    none    none  .
357    none    none  .
358    none    $13.0  ready made

3. 459 General pop-up gas lid “groove left”
    7540-7546 Indian fork lock key

Reversible with groove on the left. F141-10-50 key B 

blank  $5.00 YH38 Yamaha

0000  original  copy
0459  none    $10.0 .
7540  none    $14.0 .
7541  none    none  . 
7542  none    none  .
7543  none    none  .
7544  none    $14.0 .
7545  none    none  .
7546  none    none  .

4. 719 Lazer pop-up gas lid “groove right”
    5540-5546 Indian fork lock key

Reversible with groove on the right. F141-10-50 key B 

blank  $5.00 HD57 Honda

0000  original  copy
0719  $12.0    $10.0
0719  $15.0    with Lazer black handle
5540  none    none  . 
5541  none    none  . 
5542  none    none  .
5543  none    $13.0 .
5544  none    none  . 
5545  $16.0   $13.0 .
5546  none    none  .

5. 7650-7659 and 7750-7759 “thin groove upper left”

blank  $4.00  CO63  
This blank is too wide to enter the lock until after copying.
The blade is longer, but becomes the same after copying.

0000  original  copy   = 0000  original  copy
7650  none    none  = 7750  none    none  .
7651  $15.0   $13.0 = 7751  none    none  .
7652  none    none  = 7752  none    none  .
7653  $15.0   $13.0 = 7753  none    none  .
7654  none    $13.0 = 7754  none    none  .
7655  none    none  = 7755  none    $13.0 .
7656  none    none  = 7756  none    none  .
7657  none    none  = 7759  none    none  .
7658  none    none  = 7758  none    none  .
7659  none    none  = 7759  none    none  .

6. 7660-7669 and 7760-7769 “thin groove upper right”

blank  $3.00 XL7

0000  original  copy   = 0000  original  copy
7660  none    none  = 7760  none    $14.0 .
7661  none    $14.0 = 7761  none    none  .
7662  none    none  = 7762  none    none  .
7663  none    none  = 7763  none    none  .
7664  none    none  = 7764  none    none  .
7665  none    $14.0 = 7765  none    none  .
7666  none    none  = 7766  none    none  .
7667  none    none  = 7769  none    none  .
7668  none    none  = 7768  none    none  .
7669  none    none  = 7769  none    none  .

7. 7670-7679 and 7770-7779 General “flat left”

Flat side has teeth on the left, when the key is pointing up.

blank  none  .

0000  original  copy   = 0000  original  copy
7670  none    none  = 7770  none    none  .
7671  none    none  = 7771  none    none  .
7672  none    none  = 7772  none    none  .
7673  none    none  = 7773  none    none  .
7674  none    none  ≠ 7774  $17.0   none  .
7675  none    none  = 7775  none    none  .
7676  none    none  = 7776  none    none  .
7677  none    none  = 7779  none    none  .
7678  none    none  = 7778  $17.0   none  .
7679  none    none  = 7779  none    none  .

8. 7680-7689 and 7780-7789 General “flat right”

Flat side has teeth on the right, when the key is pointing up.

blank  $9.00 WTP1 modified
The blade is shorter, but becomes the same after modification.
The stop surfaces are lowered by careful filing off 1.0-1.5 mm.

0000  original  copy   = 0000  original  copy
7680  none    none  = 7780  none    none  .
7681  $19.0   $17.0 = 7781  none    none  .
7682  none    none  = 7782  none    none  .
7683  none    $17.0 ≠ 7783  none    $17.0 .
7684  none    none  = 7784  none    none  .
7685  none    $17.0 = 7785  none    $17.0 .
7686  none    none  = 7786  none    none  .
7687  none    none  = 7787  none    none  .
7688  none    none  = 7788  none    none  .
7689  none    none  = 7789  none    $17.0 .

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