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| Type | Air-cooled single cylinder two stroke engine |
| Transfer port type | Schn?rle loop scavenging |
| Cylinder bore dia. | 65mm |
| Piston stroke | 58mm |
| Cylinder volume | 191cc |
| Compression ratio | 6,3 : 1 |
| Power output | 9,7 hp at 5250 rpm |
| Gearbox | Four speed integrated gearbox |
| Clutch | Four plate oil bath clutch |
| Neutral selector | Hand operated lever and cable |
| Starter system | Dynastarter 12v, 90 – 135 w charging output with (reversing type starter not fitted) |
| Ignition timing | Forward direction 4,5 – 5,5 mm before TDC. Reverse direction 3- 4mm before TDC |
| Spark Plug type | Bosch M 225 P11S for normal use. |
| Carburettor | Bing-Choke carburettor 1/24/87 or 1/24/88 |
| Carburettor settings | Main Jet 120, Needle Jet 1608, Needle position 3, Idle Jet 35, Choke jet 90, Idle adjusting screw 1? turns open. |
| Inlet air silencer | Special silencer with wet filter element |
| Gearbox ratio | Primary drive Crankshaft to layshaft 2,12 : 1 1st Gear 3,62 : 1 2nd Gear 1,85 : 1 3rd Gear 1,24 : 1 4th Gear 0,86 : 1 (varies with application). |
| Drive chain | 12,7 x 8,2 x 8.51 Roller diameter |
Picture shows Sachs engine as fitted to various scooters viewed from output drive side (exhaust silencer not fitted and the chain wheel is hidden by the extended casing). Note that the SIBA voltage regulator is carried on the engine ? as is the ignition coil.
