TECHNICAL DATA - ENGINE 76
12TECHNICAL DATA- ENGINE
Design 1-cylinder 4-stroke engine, water-cooled
Displacement 654 cm³ (39.91 cu in)
Stroke 80 mm (3.15 in)
Bore 102 mm (4.02 in)
Compression ratio 11,8:1
Idle speed 1600… 1700 rpm
Control OHC, 4 valves controlled via rocker arm, drive via tooth/wheel
chain
Valve diameter, intake 40 mm (1.57 in)
Valve diameter, exhaust 34 mm (1.34 in)
Valve play, cold 0.07… 0.13 mm (0.0028… 0.01 in)
Crankshaft bearing 2 cylinder roller bearing
Engine lubrication Pressure circulation lubrication with 2 rotor pumps (engine)
Primary transmission 36:79
Clutch Multidisc clutch in oil bath / hydraulically activated
Transmission ratio
1st gear 14:35
2nd gear 16:28
3rd gear 21:28
4th gear 23:26
5th gear 24:25
6th gear 25:24
Generator 12 V, 224 W
Ignition Contactless controlled fully electronic ignition with digital igni-
tion adjustment, type Kokusan
Spark plug NGK LKAR 8AI - 9
spark plug electrode gap 0.9 mm (0.04 in)
Cooling Water cooling, permanent circulation of coolant by water pump
12.1Capacity- engine oil
Engine oil 2.2 l (2.32 qt.) Engine oil (SAE 10W/60) ( P. 96)
Engine oil (SAE 20W/60) ( P. 97)
12.2Capacity - cooling liquid
Coolant 1.2 l (1.27 qt.) Coolant ( P. 96)
Coolant (mixed ready to use) ( P. 96)