23 TECHNICAL DATA 171
23.1 Engine
Design 1-cylinder 4-stroke engine, water-cooled
Displacement 249 cm³ (15.19 cu in)
Stroke 61.1 mm (2.406 in)
Bore 72 mm (2.83 in)
Compression ratio 12.5:1
Control DOHC, 4 valves controlled via cam lever, chain drive
Valve diameter, intake 29 mm (1.14 in)
Valve diameter, exhaust 24 mm (0.94 in)
Valve clearance, intake, cold 0.08… 0.12 mm (0.0031… 0.0047 in)
Valve clearance, exhaust, cold 0.13… 0.17 mm (0.0051… 0.0067 in)
Crankshaft bearing 2 slide bearings
Conrod bearing Sleeve bearing
Pistons Cast light alloy
Piston rings 1 compression ring, 1 tapered compression piston ring, 1 oil
scraper ring
Engine lubrication Pressure circulation lubrication with two rotary pumps
Primary transmission 30:80
Clutch Clutch in oil bath/mechanically activated
Transmission 6-gear, claw shifted
Transmission ratio
1st gear 12:32
2nd gear 14:26
3rd gear 19:27
To Next Page
Loading...
Need help?
General
