24 TECHNICAL SPECIFICATIONS
150
24.1 Engine
24.1.1 All 250 models
Design 1-cylinder 2-stroke engine, water-cooled, with reed
intake and exhaust control
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
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 Mixed lubrication
X-distance (upper edge of piston to special tool) 0 … 0.10 mm (0 … 0.0039 in)
Z distance (height of control flap) 50.0 mm (1.969 in)
Primary transmission 26:72
Clutch Multidisc clutch in oil bath/hydraulically activated
Transmission 6-gear transmission, claw shifted
Transmission ratio
first-gear 13:33
second-gear 16:30
third-gear 18:26
fourth-gear 22:26
fifth-gear 23:23
sixth-gear 26:22
Alternator 12 V, 110 W
Ignition system Electronic ignition
Spark plug NGK BR 7 ES
Spark plug electrode gap 0.60 mm (0.0236 in)
Cooling Water cooling, permanent circulation of coolant by
water pump
Starting aid Electric starter system
24.1.2 All 300 models
Design 1-cylinder 2-stroke engine, water-cooled, with reed
intake and exhaust control
Displacement 293.15 cm³ (17.8892 cu in)
Stroke 72 mm (2.83 in)
Hole 72 mm (2.83 in)
Idle speed 1,400 … 1,500 rpm
Crankshaft bearing 1 grooved ball bearing/1 roller bearing
Conrod bearing Needle bearing
Piston pin bearing Needle bearing
Piston Cast aluminum
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