Sachs Engine

August 26, 2012

Contents:   1. Sachs Engines   2. 505/1 Parts List   3. 504/1 Parts List

1955 Sachs poster

Contents:   4. Speed Versions   5. Factory Manuals

 


1. Sachs Engines

Welcome. “Fichtel & Sachs” was founded in 1895 by Ernst Sachs and Karl Fichtel, in Schweinfurt Germany. Ernst Sachs was a racing cyclist and technical wiz, while Karl Fichtel was a business manager. They made hubs and spindles for bicycles and lorries. Ernst Sachs designed and patented a new bicycle hub, the “coaster brake” in 1894, which sold successfully, and also invented the “free-wheel” in 1903. Fichtel died in 1911, and Sachs, in 1932. The first Sachs engine did not come out until 1930.

Sachs introduced their first Saxonette moped in 1937, a 60cc two-stroke 1.2 hp “motor wheel” where the rear wheel and motor were a unit. 320,000 were made in 1937, and 500,000 in 1938. Read more at https://en.wikipedia.org/wiki/Sachs_Motorcycles

 

Sachs 301/A

Sachs 502/3

Sachs 501/2

Sachs 504/1

 

 

 

 

 

 

Sachs 504/1

Sachs 505/1 and 505/2

 

 

 

 

 

 

 

 

 

 

 

Sachs engines have the following numbering scheme:  SSX/YZ(W)

  • SS is the engine size 30, 50, 80, 100, 150, 175 (50 for US models)
  • X is the bottom end designation 1, 2, 3, 4, 5, 6 (4, 5 or 8 for US models).
  • Y is the number of speeds 1, 2, 3, 4, 5, 6 or A ( 1 or A for US models)
  • Z is the cylinder designation, and represents the speed restrictions applied, and may be A, B, C or D
  • W is an additional designation sometimes included on later models and import models to identify other peculiarities. A “K” for example indicates the kickstart version.

Examples:

  • 301/A   is 30 cc size, type “1” bottom end (rear bicycle wheel), “A” automatic transmission
  • 501/4A is 50 cc size, type “1” bottom end (1960’s   kick-start), “4” speed manual trans.
  • 502/2A is 50 cc size, type “2” bottom end (1960’s with pedals) “2” speed manual trans.
  • 504/1A is 50 cc size, type “4” bottom end (1970’s   no pedals), “1” speed, “A” speed version
  • 505/1D is 50 cc size, type “5” bottom end (1970’s with pedals), “1” speed, “D” speed version
  • 508/A   is 50 cc size, type “8” bottom end, (80’s 2sp no pedals) “A” automatic transmission
  • 1005/5A 100 cc size, type “5” bottom end (1980’s   kick-start), “5” speed, “A” speed version
  • 1255/6A 125 cc size, type “5” bottom end (1980’s   kick-start), “6” speed, “A” speed version

 


     2. Sachs 505/1A, ANL, B, C, D – Illustrated Parts List

000000000000  A = 505/1A   a = 505/1ANL   B = 505/1B   C = 505/1C   D = 505/1D   * = 10   x = as required
0o0 quantity
000  AaBCD  part number  price  description


Sachs 505 parts group A

0A1  00100  0287.140.200  crankcase set for B
0A1  11011  0287.140.203  crankcase set for A, a, C, D
0A1  00000287.140.215  case set for D electronic
0A2  44444  0240.058.106  cylinder stud M6-1 x 20
0A3  44444  0944.142.002  washer 6.2x12x1.5
0A4  44444  0242 129 001  nut M6 – 1.0
0A5  66666  0251.121.000  rubber mounting bush
0A6  11111  0960.136.000  rubber grommet (1-hole)
0A6  11111  0960.135.000  rubber grommet (no-hole)
0A7  11111  0260.020.000  rubber grommet (2-hole)
0A7  11111  0260.029.000  rubber grommet (3-hole)
0A7  00011  0260.020.005  rubber grommet (4-hole)
0A8  33333  0247.144.100  mount distance tube
0A9  11110  0244.168.000  closing cap Ø13
A10  11110  0244.167.100  round chrome cap with “SACHS”
A10  11110  0244.167.102  round chrome cap plain
A10  00000244.167.001  cap for elec ign or alum flywheel
A11  *****  0240.188.002  allen screw M6-1 x 70
A12  11100  0650.131.000  sealing ring 10×14
A13  11100  1726.080.100  screw plug M10-1
A14  11111  0240.191.002  allen screw M6-1 x 20
A15  44444  0240.187.002  allen screw M6-1 x 55
A16  11111  0250.084.005  oil seal 16x24x4
A17  11111  0250.155.300  clutch cover gasket
A18  11111  0277.117.000  cover with “SACHS” with plug
A18  11111  0211.151.201  cover without “SACHS” no plug
A19  11111  0240.140.207  oil level screw plug M14-1
A20  55555  0640.027.002  oval head screw M5-0.8 x 14

000 quantity
000  AaBCD  part number  price  description


0B1  00100  0287.137.114  cylinder silver for B
0B1  00100  0287.137.151  cylinder black for B
B01  11000  0287.137.119  cylinder silver for A, a
0B1  11000  0287.137.153  cylinder black for A, a
B01  00011  0287.137.134  cylinder silver for C, D
0B1  00011  0287.137.155  cylinder black for C, D
0B2  11111  0998.004.001  spark plug Bosch W7A

0B3  11111  0250.156.200  intake gasket
0B4  11110  0211.152.000  flange (only for some) 
0B5  11111  0250.160.101  rubber o-ring
0
B6
  10100  0267.114.402  intake pipe Ø14.0 for A,B
0B6  00011  0267.114.403  intake pipe Ø14.5 for C,D
0B6  00001  0267.114.404  intake pipe Ø12.5 for D*
0B6  01000  0267.114.505  intake pipe Ø12.0 for a2*
0
B7
  22222  0244.100.008  washer
0B8  22200  0940.085.102  hex screw M6x35
0B8  00022  0240.003.104  hex screw M6x25

Sachs 505 parts group B

0B9  11111  0291.021.000  start cable inner wire 
B10  11111  0291.022.200  decompressor
B11  11111  0660.018.000  protective cap
B12  11111  0291.024.011  start cable conduit
B13  11111  0250.154.000  cylinder base gasket
B14  11111  0818.202.000  washer 10.7 x 20.2 x 1.7
B15  11111  2842.016.000  flywheel nut M10-1.00
B16  11111  0230.106.200  oil seal 15 x 35 x 7
B17  11111  0244.153.000  washer 30 x 36.8 x 1.5
B18  22222  0232.120.003  ball bearing 6202 C3
B19  xxxxx  0246.009.000  washer 15.3 x 20 x 0.3
B19  xxxxx  0246.009.001  washer 15.3 x 20 x 0.5
B19  xxxxx  0246.009.002  washer 15.3 x 20 x 1.0
B19  xxxxx  0246.009.003  washer 15.3 x 20 x 0.1
B19  xxxxx  0246.009.004  washer 15.3 x 20 x 0.15
B19  xxxxx  0246.009.005  washer 15.3 x 20 x 0.8
B19  xxxxx  0246.009.007  washer 15.3 x 20 x 0.2
B20  11111  0246.005.000  woodruff key 3 x 3.7
B21  11110  0288.114.002  crankshaft for A,a,B,C
B21  00001  0288.114.005  crankshaft for D
B22  22222  0245.000.000  piston pin clip
B23  11111  0216.003.105  piston pin Ø12
B24  11100  0286.378.005  piston assy Ø38.0 x 53.0
B24  11100  0286.378.006  piston assy Ø38.6 x 53.0
B24  00011  0286.378.051  piston assy Ø38.0 x 50.5
B24  00011  0286.378.052  piston assy Ø38.6 x 50.5
B25L11111  0215.009.000  lower  ring std Ø38.0×2.0
B25L11111  0215.010.001  lower  ring o.s Ø38.6×2.0
B25u
11100  0215.009.000  upper ring std Ø38.0×2.0
B25u11100  0215.010.001  upper ring o.s Ø38.6×2.0
B25u00011  0215.100.100  upper ring std Ø38.0×1.5
B25u00011  0215.100.102  upper ring o.s Ø38.6×1.5
B26  11111  0232.157.001  needle bearingØ12,15×13
B27  11111  0246.009.001  washer 15.3 x 20 x 0.5
B28  11111  0246.008.003  washer 25.3 x 34 x 0.2
B29  11111  0230.107.000  oil seal 13 x 30 x 5.5

 

000 quantity
000  AaBCD  part number  price  description


Sachs 505 parts group C

0C1  11111
0C2  11111
0C3  11111
0C4  11111
0C5  11111
0C6  11111
0C7  11111
0C8  11111
0C9  11111
C10  11111
C11  11111
C12  11111

C8 505/1 main shaft

C8+C7+C1+C6+C5

 

 

 

 

 

 

 

000 quantity
000  AaBCD  part number  price  description


Sachs 505 parts group D

0D1  11111
0D2  11111
0D3  11111
0D4  11111
0D5  11111
0D6  11111
0D7  11111
0D8  11111  0291.021.000  inner cable with 0291.020.000
0D9  11111  0660.018.000  protective cap
D10  11111  0291.024.011  outer casing
D11  11111  0284.016.000  pressure cup
D12  11111  0242.000.000  hex nut M10-1.00
D13  11111  0244.157.000  washer 10 x 29.3 x 4
D14  00100  0244.154.003  washer 24.8 x 44 x 1.7
D14  xxxxx  0244.154.000  washer 24.8 x 44 x 0.5
D14  xxxxx  0244.154.001  washer 24.8 x 44 x 0.8
D14  xxxxx  0244.154.002  washer 24.8 x 44 x 1.0
D14  xxxxx  0244.154.004  washer 24.8 x 44 x 0.2
D14  xxxxx  0244.154.005  washer 24.8 x 44 x 1.2
D14  xxxxx  0244.154.006  washer 24.8 x 44 x 0.3
D15  11311  0258.014.200  internal plate 1.7mm thick
D15  22022  0258.014.201  internal plate 2.5mm thick
D16  22222  0245.122.200  spring washer
D17  22222  0258.015.000  external plate
D18  11111  0258.012.100  clutch hub
D19  11111  0247.141.000  ring
D20  11100  0284.015.000  centrifugal weight assy for A,B
D20  11100  0284.015.000  with tension spring 0239.137.100
D20  00011  0284.015.001  centrifugal weight assy for C,D
D20  00011  0284.015.001  with tension spring 0239.137.101
D21  11111  0258.016.000  clutch plate
D22  22222  0244.112.000  washer 11.9 x 23 x 1
D23  11111  0284.014.000  clutch case
D24  11111  0232.132.101  bush 11.7 x 16 x 16.5

 

 

 

000 quantity
000  AaBCD  part number  price  description


Sachs 505 parts group E

0E1  11111  0944.120.004  washer 16.2 x 22 x 0.8
0E2  11111  0247.149.000  bushing  16.3 x 20 x 9.3
0E3  11111  0245.020.001  circlip
0E4  11111  0944 120 002  washer 16.2 x 22 x 1
0E5  11111  0237.106.001  starting wheel
0E6  11111  0237.106.101  pedal shaft with recess for E9
0E6  11111  0237.106.101  for case with or without oil seal 
0E6  11111  0285.121.000  pedal shaft assy E3,4,5,6
0E6  11111  0237.106.301  pedal shaft no recess for E9
0E6  11111  0237.106.301  for crankcase with oil seal
0E7  11111  0239.051.001  brake spring
0E8  11111  0252.007.201  driver
0E9  11111  0250.164.000  o-ring 13 x 1.5 use a second one on the
0E6  11111  0250.164.000  clutch side for cases without oil seal
E10  11111  0232.048.302  driver bush with spur gearing
E10  11111  0285.120.200  driver bush assy E10,11,13,14,15
E10  10001  0232.048.203  driver bush without spur gearing
E11  11111  0244.165.000  washer 23.5 x 32 x 1
E12  11111  0250.165.000  sealing ring 19 x 2
E13  11111  0248.153.500  brake lever with two flats
E13  11111  0248.153.400  brake lever with one flat
E14  11111  0244.052.000  retaining tab washer
E15  11111  0242.030.105  hex nut M22-1 Left Thread 20.8 ID

 


     3. Sachs 504/1A, ANL, B, C, D – Illustrated Parts List

 

 

000 quantity
000  AaBCD  part number  price  description


0

 

 

 

 

 

 

 

 

 

 

 

Sachs 504 Mainshaft assy 0285-112-001, bare as shown here, $25, or complete except for sprocket, $35, or complete with sprocket and new seal $60.

 

 

 

 

 

 

 

 

 

 


4. Speed Versions

Sachs 504/1 and 505/1 Speed Version Info, condensed from factory Parts Manuals

Cylinder part numbers and short codes:

0213.146.230 = 0287.137.134 (0287.137.155 black) “D” says “40 km”, square fins, for 504/1C, D, 505/1C, D

0213.146.215 = 0287.137.119 (0287.137.153 black) “A” says “40 km”, angled fins, for 504/1A, ANL, 505/1A, ANL

0213.146.210 = 0287.137.114 (0287.137.151 black) “B” says “25 km”, angled fins, for 504/1B, BS, 505/1B

0213.146.220 = 0000.000.000 (0000.000.000 black)E” says “25 km”, angled fins, for 504/1A DK

0000.000.000 = 0000.000.000 (0000.000.000 black) F” says “25 km”, square fins, for 504/1D NL

Case Set part numbers and short codes:

0000.000.000 = 0287.136.402 (0000.000.000 black)4A” for 504/1A, ANL, C, D

0000.000.000 = 0287.140.203 (0000.000.000 black)5A” for 505/1A, ANL, C, D

0000.000.000 = 0287.140.215 (0000.000.000 black)5D” for 505/1D electronic ignition

0000.000.000 = 0287.136.400 (0000.000.000 black)4B” for 504/1B, BS

0000.000.000 = 0287.140.200 (0000.000.000 black)5B” for 505/1B

0000.000.000 = 0287.136.408 (0000.000.000 black)4E” for 504/1A DK

0000.000.000 = 0000.000.000 “(0000.000.000 black) 00” for 504/1D NL

 

The engine cases 4B and 5B are intentionally made different so that the A and D cylinders cannot fit. The cylinder studs are farther inward. That is also why a Sachs cylinder base gasket has slots instead of holes, to fit both types.

To convert a B version (25 km) to an A (40 km) you have to change the engine case set, the cylinder, the intake, the clutch plates, the carburetor, the exhaust, and maybe the sprocket(s). That is too many things to be practical.

Clutch Weight-Spring (ws) part numbers and short codes:

  • weight-spring 0284.015.000 “A” for 504/1A, B, 505/1A, B
  • weight-spring 0284.015.001 “D” for 504/1C, D, 505/1C, D

 

Nationality: The engines are made in Germany, but are sold in different European countries, as well as North and South America and other places. Each country has it’s own laws about how fast and powerful a moped can be. That is why there are so many different speed versions. In Germany, there are two kinds of mopeds:

Mofas are 25 km/h (16 mph), no licence required, minimum age 15, no passengers. German flag“Mofa” is short for motorisertes fahrrad (motorized bicycle).

Mopeds are 40 km/h (25 mph),  drivers license required (any class), minimum age 16. “Moped” is short for motor mit pedale (motor with pedals).

This is why Sachs 504 and 505 engine cylinders either say “40km” or “25km”, in the casting.

Where’s the governer? There is not a “governer” yet the speed and power are governed. Several things are intentionally restricted to limit how much air the engine breathes. The cylinder ports open late and close early, the carburetor and intake are small, the exhaust is small. Each thing has about the same influence. Sachs designed it to be tamper-proof, for safety reasons, so unlicensed riders won’t be able to go over 16 mph. No fun intended.

 

 

Version x speed x years x country  power carburetor jet cyl case  cl. plates  ws   outer, inner  exhaust header


504/1C XX00mph  00-00  Spain xx 2.5hp 85/12/104 58 4D 4A  1.7 2.5 2.5 4A 26×400, none

505/1C XX00mph  00-00  Spain xx 2.5hp 85/12/104 58 5D 5A  1.7 2.5 2.5 5A 26×400, none


504/1D XX30mph  80-84  USA xxx 2.0hp 85/12/104 58 4D 4A  1.7 2.5 2.5 4A 26×360,26×100

505/1D XX30mph  80-84  USA xxx 2.0hp 85/12/104 58 5D 5A  1.7 2.5 2.5 5A 26×360,26×100


504/1A AX30mph  74-79  USA xxx 1.8hp 85/12/101 52 4A 4A  1.7 2.5 2.5 4A 26×400,24×200

505/1A XX30mph  74-79  USA xxx 1.8hp 85/12/101 52 5A 5A  1.7 2.5 2.5 5A 26×400,24×200


504/1A NL KTMxx  74-79  Holland  1.7hp 85/12/101 52 4A 4A  1.7 2.5 2.5 4A 20×350,20×250
504/1A NL Sparta  74-79  Holland  1.7hp 85/12/102 50 4A 4A  1.7 2.5 2.5 4A 20×350,20×250

505/1A NL 26mph  74-79  Holland  1.8hp 85/12/101 52 5A 5A  1.7 2.5 2.5 5A 20×350,20×250

504/1A BX 26mph  74-79 Germany 1.5hp 85/12/101 52 4A 4A  1.7 2.5 2.5 4A 20×350,20×250


504/1B AX 20mph  74-84  USA xxx 1.0hp 85/10/101 50 4B 4B  1.7 1.7 1.7 4B 20×350,20×250

505/1B XX 20mph  74-84  USA xxx 1.0hp 85/10/101 50 5B 5B  1.7 1.7 1.7 5B 20×350,20×250


504/1A BX 26mph  74-79 Germany 1.5hp 85/12/101 52 4A 4A  1.7 2.5 2.5 4A 20mm o.d.

504/1B BX 16mph  74-79 Germany 1.3hp 85/10/101 50 4B 4B  1.7 1.7 1.7 4B 20mm o.d.


504/1B SX 00mph  75-79 Sweeden 1.0hp 85/10/101 50 4B 4B  1.7 1.7 1.7 4B 14×400,14×250

504/1A DK 19mph  74-79 Denmark 1.0hp 85/10/103 45 4E 4E  1.7 1.7 1.7 4E 14×400,14×250

504/1D NL 12mph  79-79  Holland  1.0hp 85/10/101 50 4F 4B  1.7 1.7 1.7 4B 14×400,14×250

504/1A CH 00mph  00-00  Switzer. 0.8hp 85/08/101 48 4E 4E  1.7 1.7 1.7 4E 14×400,14×250

 

 

 

 


5. Factory Manuals

 

 

504/1 Service Manuals

3030.8/1   3030.8/2   3030.8/3   3030.8/4
Feb 1974   Nov 1975   Sep 1977   Feb 1979
504/1A0O  504/1A0O  504/1A0O  504/1A0O  Germany
504/1ACH  504/1ACH  504/1ACH  504/1ACH  Switzerland
504/1ADK  504/1ADK  504/1ADK  504/1ADK  Denmark
504/1ANL  504/1ANL   504/1ANL  504/1ANL  Netherlands
504/1B0O  504/1B0O  504/1B0O  504/1B0O  Germany  
000/000O  504/1BSO  504/1BSO  504/1BSO  Sweden
000/000O  000/000O  504/1C0O  504/1C0O  Spain
000/000O  000/000O  504/1DNL  504/1DNL  Netherlands

 

505/1 Service Manuals

3034.8/1   3034.8/2   3034.8/3   3030.8/4
Feb 1975   Feb 1977   Apr 1980   Feb 1979
505/1A0O  505/1A0O  505/1A0O  505/1A0O  Germany
505/1ANL  505/1ANL   505/1ANL  505/1ANL  Netherlands
505/1B0O  505/1B0O  505/1B0O  505/1B0O  Germany  
000/000O  000/000O  505/1C0O  505/1C0O  Spain
000/000O  000/000O  505/1D0O  505/1D0O  USA

 

 

 

 

 

 

 

 

 

 

 

 

under construction…