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23.1
Engine
Design
Displacement
Stroke
Bore
Compression ratio
Idle speed
Control
Valve diameter, intake
Valve diameter, exhaust
Valve clearance
Intake at: 20 °C (68 °F)
Exhaust at: 20 °C (68 °F)
Crankshaft bearing
Conrod bearing
Piston pin bearing
Pistons
Piston rings
Engine lubrication
Primary transmission
Clutch
Gearbox
Transmission ratio
First gear
Second gear
Third gear
Fourth gear
Fifth gear
Sixth gear
Alternator
Ignition
Spark plug
Spark plug electrode gap
Cooling
Starting aid
1-cylinder 4-stroke engine, water-cooled
249.91 cm³ (15.2505 cu in)
52.3 mm (2.059 in)
78 mm (3.07 in)
12.8:1
1,750 ... 1,850 rpm
DOHC, four valves controlled via cam lever, drive via
timing chain
32.5 mm (1.28 in)
26.5 mm (1.043 in)
0.10 ... 0.15 mm (0.0039 ... 0.0059 in)
0.13 ... 0.18 mm (0.0051 ... 0.0071 in)
2 cylinder bearings
Slide bearing
Bearing bush
Forged light alloy
1 compression ring, 1 oil scraper ring
Pressure circulation lubrication with two Eaton pumps
24:73
Multidisc clutch in oil bath/hydraulically activated
6 gear transmission, claw shifted
13:32
16:30
16:24
23:28
23:23
26:20
12 V, 196 W
Contactless controlled fully electronic ignition with
digital ignition adjustment
NGK LMAR9AI-10
1.0 mm (0.039 in)
Water cooling, permanent circulation of coolant by
water pump
Starter motor
TECHNICAL DATA 23
139
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