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22.1
Engine
Design
Displacement
Stroke
Bore
Compression ratio
Control
Intake valve diameter
Exhaust valve diameter
Valve clearance, intake, cold
Valve clearance, exhaust, cold
Crankshaft bearing
Conrod bearing
Pistons
Piston rings
Engine lubrication
Primary transmission
Clutch
Transmission
Transmission ratio
1st gear
2nd gear
3rd gear
4th gear
5th gear
6th gear
Mixture preparation
Ignition
Alternator
Spark plug
Spark plug electrode gap
Cooling
Idle speed
Starting aid
TECHNICAL DATA 22
1-cylinder 4-stroke engine, water-cooled
249 cm³ (15.19 cu in)
61.1 mm (2.406 in)
72 mm (2.83 in)
12.5:1
DOHC, four valves controlled via cam lever, chain
drive
29 mm (1.14 in)
24 mm (0.94 in)
0.10 ... 0.15 mm (0.0039 ... 0.0059 in)
0.15 ... 0.20 mm (0.0059 ... 0.0079 in)
2 slide bearings
Sleeve bearing
Cast light alloy
1 compression ring, 1 tapered compression piston
ring, 1 oil scraper ring
Pressure circulation lubrication with 2 trochoidal
pumps
30:80
Clutch in oil bath/mechanically activated
6-gear transmission, claw shifted
12:32
14:26
19:27
21:24
23:22
25:21
Electronic fuel injection
Contactless controlled fully electronic ignition with
digital ignition adjustment
12 V, 230 W
BOSCHVR6NEU
1 mm (0.04 in)
Water cooling, permanent circulation of coolant by
water pump
1,500 ± 50 rpm
Starter motor
113
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