22 TECHNICAL DATA
153
22.1 Engine
22.1.1 All 250 models
Design 1-cylinder 2-stroke engine, water-cooled, with reed
intake, exhaust control and transfer duct injection
Displacement 249 cm³ (15.19 cu in)
Stroke 72 mm (2.83 in)
Hole 66.4 mm (2.614 in)
Idle speed 1,400 … 1,500 rpm
Exhaust valve, beginning of adjustment 5,500 rpm
Crankshaft bearing 1 grooved ball bearing/1 roller bearing
Conrod bearing Needle bearing
Piston pin bearing Needle bearing
Piston Cast aluminum
Piston rings 2 half keystone rings
Engine lubrication Separate lubrication
X distance (upper edge of piston to upper edge of
cylinder)
0 … 0.10 mm (0 … 0.0039 in)
Z distance (height of control flap) 49 mm (1.93 in)
Primary transmission 26:73
Clutch Multidisc clutch in oil bath/hydraulically activated
Transmission 6-gear, claw shifted
Transmission ratio
First gear 14:32
Second gear 16:26
Third gear 20:25
Fourth gear 22:23
Fifth gear 25:22
Sixth gear 26:20
Alternator 12 V, 196 W
Ignition system Contactless controlled, fully electronic ignition with
digital ignition adjustment, type Kokusan
Spark plug NGK ZGR 7 G1
Spark plug electrode gap 1.3 mm (0.051 in)
Cooling Water cooling, permanent circulation of coolant by
water pump
Starting aid Kick starter and electric starter
22.1.2 All 300 models
Design 1-cylinder 2-stroke engine, water-cooled, with reed
intake, exhaust control and transfer duct injection
Displacement 293.2 cm³ (17.892 cu in)
Stroke 72 mm (2.83 in)
Hole 72 mm (2.83 in)
Idle speed 1,400 … 1,500 rpm
To Next Page
Loading...
Need help?
General
