Sachs Engines

for Mopeds and Motorbikes

last update 230604

Information about Sachs engines (technical data) is found below. For a picture please click on the link.
Sizes are according to the metric system.

For Sale: Nuts M10 x 1 and M12 x 1 with LEFT and right thread. New old stock pistons available of some enginetypes.

M = Diaphragmengine. L = Fancooling. F = Foot gear. H = Hand gear. K = Kickstarter. R = Reverse gear. AZL = Electric Starter and generator. A = extra acceleration.

Saxonette and Saxonette automatic

Bore 38
Stroke 42
Output 1,8 hp
Ignition timing 2-2,5 mm
Contact breaker gap 0,35-0,45 mm
Engine lubrication 1:25
Gearbox lubrication 200 cc special automatic oil (Sax. automatic 250 cc)
Sparkplug Bosch W 190 M 11 S

The Automatic is identical to the Saxonette but has a two-speed gearbox inside instead of a 1-speed automatic. Most of the Automatic engines were used in mopeds for disabled people, or in miniature cars (most with an electric starter).

For technical data of the Saxonette 50/AE X en ADL X click here.
For technical data of the Saxonette 50/AMA and AMA X click here.
For technical data of the Saxonette 50/MB click here.
For technical data of the Saxonette 50/AMB click here.
For technical data of the Saxonette 50/AMA I and AMA SF click here.
For technical data of the Saxonette 50/AMAL X click here.
For technical data of the Saxonette 50/AMLC click here.
For technical data of the Saxonette 50/AML en AML S click here.
For technical data of the Saxonette 50/AL S click here.

For carburatorsettings of the Saxonette (1961) click here.

Sachs 50 2/3 V.

See Saxonette
Gearbox lubrication 200 cc (SAE 80)

For technical data of the Sachs 50/2 GLS click here.
For technical data of the Sachs 50/2 MLC click here .
For technical data of the Sachs 50/2 MB click here .
For technical data of the Sachs 50/3 MB click here.
For technical data of the Sachs 50/3 MLK B, MLK AX and LKH click here.
For technical data of the Sachs 50/3 MLB, MLA X and MLA Nl click here.
For technical data of the Sachs 50/3 LH X, Nl and C Nl click here.
For several identification plates click here.

For carburatorsettings of the Sachs 50/2 (1961) click here.
For carburatorsettings of the Sachs 50/2M (1961) click here.
For carburatorsettings of the Sachs 50/3 (1961) click here.
For carburatorsettings of the Sachs 50/3M (1961) click here.

Sachs 50 3/4V

Bore 38
Stroke 42
Output 1,8 hp (some countries 4,3 hp)
Ignition timing 1,5-2 mm MFLA (4LKH 2,5-3 mm)
Contact breaker gap 0,35-0,45 mm
Engine lubrication 1:25
Gearbox lubrication. 200 cc
Sparkplug Bosch W 190 M 115 of AC M 43 F

For technical data of the Sachs 50/3 LFH and LFS click here.
For technical data of the Sachs 50/3 KF S and 3B KF S click here.
For technical data of the Sachs 50/3M LF B and 3MA KF SF click here.
For technical data of the Sachs 50/3MA KF X click here.
For technical data of the Sachs 50/4 LK H and LK S click here.
For technical data of the Sachs 50/4 LF NL and MLFA NL click here.
For technical data of the Sachs 50/4 MLF B and MLKA X click here.
For technical data of the Sachs 50/4 CF NL and DF X click here.
For several identification plates click here.

Sachs 74 cc

Bore 42
Stroke 54
Output 1,25 hp
Engine lubrication 1:20
Gearbox lubrication Grease (so-called 0-grease)
Sparkplug Bosch M 45

Sachs 98 cc M32 (new oldstock pistons available)

Bore 48
Stroke 54
Output 2,1 pk
Ignition timing 3,5-4 mm
Cantact breaker gap 0,4 mm
Engine lubrication 1: 25-35
Gearbox lubrication Grease (about 60 grams)
Sparkplug Bosch M 45

Sachs 98 cc M50

Bore 48
Stroke 54
Output 2,75-3 hp
Ignition timing
Contact breaker gap 0,4-0,5 mm
Engine lubrication 1:25
Gearbox lubrication Grease
Sparkplug Bosch M 145T1

Sachs 125 cc 1938 (SM 123)

Bore 54
Stroke 54
Output 3,5 pk
Engine lubrication 1:20
Contact breaker gap 4,5-5 mm
Gearbox lubrication 350 cc
Sparkplug Bosch DM 145T1

Sachs 100/125 postwar

Bore 48 (54)
Stroke 54 (54)
Output 6,5 (7) hp
Ignition timing 3-4 mm
Contact breaker gap 0,35-0,45 mm
Engine lubrication 1:25
Gearbox lubrication 450 cc (SAE 80)
Sparkplug Bosch M 225 P 11 S

The early models of the Sachs 100/125 had 3 gears (shifted manually by hand). Later, they had a 4 speed gearbox (shifted manually with the foot) and 1/2 hp extra output. Sparkplug: Bosch M 240 T 11.
In 1964 the Sachs 100/4 S appeared. Output was 8,2 hp and it was fitted with a "Breitwandzylinder". Sparkplug: Bosch M 240 T1.

For technical data of the Sachs 100/3 klik dan here.
For technical data of the Sachs 100/4 klik dan here.

For carburatorsettings of the Sachs 100/3 en 100/3A (1961) click here.
For carburatorsettings of the Sachs 125/3 en 125/4 (1961) click dan here.

Sachs 150

Bore 57
Stroke 58
Output 6 hp
Ignition timing 4,5-5,5 mm
Conact breaker gap 0,35-0,45 mm
Engine lubrication 1:25
Gearbox lubrication 650 cc (SAE 90)
Sparkplug Bosch M 225 P11S

Sachs 175

Bore 62
Stroke 58
Output 9 hp (since 1955: 10 hp)
Sparkplug Bosch M 225 P11S/M 240 T11
Further details see Sachs 150

For technical data of the Sachs 175 click here.

For carburatorsettings of the Sachs 150 and 175 (1961) click here.

Sachs 200 o.a. Messerschmitt KR 200

Bore 65
Stroke 58
Output 10,2 hp
Ignition timing 4,5-5,5 mm
Contact breaker gap 0,4-0,5 mm
Engine lubrication 1:25
Gearbox lubrication 750 cc (SAE 80/90)
Sparkplug Bosch M 225

For technical data of the Sachs 200 L-AZL-R clcik here.

For carburatorsettings of the Sachs 200 (1961) click here.

Ernst Sachs
1867-1932

Saxonette hub engine 1938

Bore 41
Stroke 38
Output 1,2 hp
Contact breaker gap 0,4-0,5mm
Engine lubrication 1:25
Gearbox lubrication Grease (40-50 cc each 1500 km.)
Sparkplug Bosch W 175 T1

Sachs 301 (Saxonette) o.a. Spartamet and Hercules

Bore 33
Stroke 36
Output 0,7 hp (0,5 kW)
Ignition timing 0,8-1,2 mm
Contact breaker gap 0,4 mm
Engine lubrication 1:100
Gearbox lubrication 70/90 cc (special gearbox oil)
Sparkplug WR 10 FC

Sachs 501/3 en 4

Bore 38
Stroke 44
Output 2,5 hp / 2,9 hp
Ignition timing 1,5-2,0 mm
Contact breaker gap 0,35-0,45 mm
Engine lubrication 1: 25
Gearbox lubrication 300 SAE 80
Sparkplug Bosch W 225 T1

For technical data of the Sachs 501/4 AKF and AKF X click here.
For technical data of the Sachs 501/3 BKF and /4 BKF click here.

Sachs automatic 502

Bore 38
Stroke 42
Output 1,7 hp
Ignition timing 1,5-2,0 mm
Contac breaker gap 0,3-0,4 mm
Engine lubrication 1: 25
Gearbox lubrication 75 cc automatic transmission oil
Sparkplug Bosch W 175 T1

For technical data of the Sachs 502/1A click here.
For technical data of the Sachs 502/1B click here.

Sachs automatic 504

Bore 38
Stroke 42
Output 1,7 hp (later 1,8)
Ignition timing 2,5-3.0 mm
Contact breaker gap 0,3-0,4 mm
Engine lubrication 1: 25
Gearbox lubrication. 150 cc automatic transmission oil
Sparkplug Bosch W 175 T1

For technical data of the Sachs 504/1A clickhere.
For technical data of the Sachs 504/1B click here.
For technical data of the Sachs 504/2A clcik here.
For technical data of the Sachs 504/2B click here.

Sachs 505

Several types of the Sachs 505 were available. Automatic or with a 2 or 3 speed gearbox (hand shift).

For technical data of the Sachs 505/1A (Nl) or B click here.
For technical data of the Sachs 505/1D or DK click here.
For technical data of the Sachs 505/1BS or BX click here.
For technical data of the Sachs 505/2B or C click here.
For technical data of the Sachs 505/2D or DK click here.
For technical data of the Sachs 505/2BS or BX click here.
For technical data of the Sachs 505/3D or DK click here.
For technical data of the Sachs 505/3BX click here.

Sachs 506/3 en 506/4

Bore 38
Stroke 44
Output 1,6 hp / 3 hp
Ignition timing 1,2-1,8 mm / 0,9-1,2 mm
Contact breaker gap 0,35-0,45 mm
Engine lubrication 1: 50
Gearbox lubrication 450 cc / 400 cc SAE 80
Sparkplug Bosch W 175 T1 (= W 7AC)

For technical data of the Sachs 506/3B click here.
For technical data of the Sachs 506/4A KF click here.

Sachs 50 S

Bore 38
Stroke 44
Output 4,5 hp (some countries 5,3 hp)
Ignition timing 1,5-2.0 mm
Contact breaker gap 0,35-0,45 mm
Engine lubrication 1: 25
Gearbox lubrication 350 cc SAE 80
Sparkplug Bosch W 260 T1 of W 270 T16

For technical data of the Sachs 50 S click here and here.
For technical data of the Sachs 50 S click here and here.
The difference is between the models of the cylinders.

Sachs Supra 4 (50/4EF)

Bore 38
Store 44
Output 1,8 hp
Engine lubrication 1: 50
Sparkplug Bosch W 190 M 11 S

Sachs 50 SW

Bore 40
Stroke 39,7
Output 8,3 hp
Ignition timing 0,7-1,0 mm
Contact breaker gap 0,3-0,5 mm
Engine lubrication 1: 50
Gearbox lubrication 400 cc SAE 80
Sparkplug Bosch W 300 T2 (=W 2C)

For technical data of the Sachs 50/5 SW click here and here.
For technical data of the Sachs 50/6 SW D click here.

Sachs 80 SA en 80 SW

Bore 46
Stroke 48
Output 8,5 hp
Ignition timing 0,8-1,2 mm / 1,3-1,7 mm
Contact breaker gap 0,3-0,5 mm
Engine lubrication 1: 50
Gearbox lubrication. 500 cc SAE 80
Sparkplug Bosch W 250 T1 (=W 4AC) / W 275 T1 (= W 3A)

For technical data of the Sachs 80 SA click here.
For technical data of the Sachs 80 SW click here.

Sachs 100/125 cc Type 1001/1251 , f.e. Hercules, Monark, KTM

Bore 48 (54)
Stroke 54
Output 12 hp (15)
Ignition timing 2,5-3.0 mm
Contact breaker gap 0,4-0.5 mm (Bosch) (Motoplat is electronic)
Engine lubrication 1: 25
Gearbox lubrication 600 cc SAE 80
Sparkplug Bosch W 260 T1

For technical data of the Sachs 1001/5a, 6a, 6b, 6c 1251/5a, 5b, 6a, 6b, 6c and 6d click here.
For carburatorsettings of the Sachs 1001/1251 (1974) click here.

Sachs 125/175 cc Type 1252/1752

Bore 53,75 (59,75)
Stroke 54 (61)
Output 22 hp (26)
Ignition timing 0.7-1.2 mm (1.7-2.2)
Engine lubrication 1: 25 tot 1: 50
Gearbox lubrication 600 cc SAE 80 (700)
Sparkplug Bosch W 310 S 2 S

For technical data of the Sachs 1252/7A and 1752/7A click here.

Sachs 250 cc Type 2401/2501/2551 (new oldstock pinstons available)

Bore 70.5 (71.5) (73)
Stroke 61
Output 32 hp (33)
Ignition timing 1.7-2.2 mm
Engine lubrication 1: 25
Gearbox lubrication 600 cc SAE 80 (700)
Sparkplug Bosch W 310 S 2 S

For technical data of the Sachs 2401/7A en 2501/7A click here.
For technical data of the Sachs 2551/7A click here.

Sachs Wankel KC 27 , Hercules, DKW

Output 27 hp
Contact breaker gap 0,35-0,45 mm
Engine lubrication 1: 25
Gearbox lubrication 1800 cc SAE 80
Sparkplug Bosch W 240 T2

For technical data of the Sachs KC 27 click here.

Click here for the new sizes of old sparkplugs. (Horst Hansel)

Click here for original spareparts and merchandise of Sachsengines I have for sale.

For sale

Matchmarks with mopeds, motorbikes and cars (sixties).