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23.1
Engine
Design
Displacement
Stroke
Bore
Compression ratio
Idle speed
Control
Valve - valve plate diameter
Intake
Exhaust
Valve clearance
Intake at: 20 °C (68 °F)
Exhaust at: 20 °C (68 °F)
Crankshaft bearing
Conrod bearing
Piston
Piston ring
Engine lubrication
2-cylinder 4-stroke Otto engine, 75° V arrangement,
water-cooled
1,301 cm³ (79.39 cu in)
71 mm (2.8 in)
108 mm (4.25 in)
13.5:1
1,400 ... 1,600 rpm
DOHC, 4 valves per cylinder, chain-driven
42 mm (1.65 in)
34 mm (1.34 in)
0.10 ... 0.15 mm (0.0039 ... 0.0059 in)
0.25 ... 0.30 mm (0.0098 ... 0.0118 in)
Sleeve bearing
Sleeve bearing
Forged light alloy
1 upper compression (rectangular) ring, 1 lower com-
pression ring, 1 oil scraper ring
Dry sump lubrication system with 3 trochoidal pumps
TECHNICAL DATA 23
313
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