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22.1
Engine
Design
Displacement
Stroke
Bore
Compression ratio
Idle speed
Coolant temperature: ≥ 70 °C (≥ 158 °F)
Control
Valve diameter, intake
Valve diameter, exhaust
Valve play, cold
Intake at: 20 °C (68 °F)
Exhaust at: 20 °C (68 °F)
Crankshaft bearing
Conrod bearing
Piston pin bearing
Pistons
Piston rings
TECHNICAL DATA 22
1-cylinder 4-stroke engine, water-cooled
692.7 cm³ (42.271 cu in)
80 mm (3.15 in)
105 mm (4.13 in)
12.7:1
1,600 ... 1,700 rpm
OHC, intake with cam levers, exhaust controlled by
rocker arm, chain drive
42 mm (1.65 in)
34 mm (1.34 in)
0.10 ... 0.15 mm (0.0039 ... 0.0059 in)
0.22 ... 0.27 mm (0.0087 ... 0.0106 in)
2 roller bearings
Slide bearing
Piston pin with DLC coating
Forged light alloy
1 compression ring, 1 lower compression ring, 1 oil
ring with spring expander
239
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