TECHNICAL DATA - ENGINE
158
Design
1-cylinder 4-stroke engine, water-cooled
Displacement
654 cm³ (39.91 cu in)
Stroke
80 mm (3.15 in)
Bore
102 mm (4.02 in)
Compression ratio
11.8:1
Control
OHC, 4 valves controlled via rocker arm, chain drive
Valve diameter, intake
40 mm (1.57 in)
Valve diameter, exhaust
34 mm (1.34 in)
Valve play, cold
0.07… 0.13 mm (0.0028… 0.0051 in)
Crankshaft bearing
2 roller bearings
Conrod bearing
Needle bearing
Piston pin bearing
Bronze bush
Pistons
Forged light alloy
Piston rings
1 L-ring, 1 tapered compression piston ring, 1 oil scraper ring
Engine lubrication
Semi-dry sump lubrication with two rotor pumps
Primary transmission
36:79
Clutch
APTC™
Antihopping clutch in oil bath / hydraulically operated
Gearbox
6-gears, claw-shifted
Transmission ratio
1st gear
14:35
2nd gear
16:28
3rd gear
21:28
4th gear
21:23
5th gear
23:22
6th gear
23:20
Summary of Contents for Chassis 690 SMC
Page 1: ...OWNER S MANUAL 2009 690 SMC EU 690 SMC AUS UK ART NO 3211365en...
Page 2: ......
Page 8: ...CONTENTS 6 AUXILIARY SUBSTANCES 176 STANDARDS 178 INDEX 179...
Page 14: ...VIEW OF VEHICLE 12 3 1 View of vehicle front left side 600637 10...
Page 16: ...VIEW OF VEHICLE 14 3 2 View of vehicle rear right 600638 10...