23
TECHNICAL DATA
188
23.1
Engine
Design
2-cylinder 4-stroke Otto motor, 75° V arrangement, water-cooled
Displacement
999 cm³ (60.96 cu in)
Stroke
62.4 mm (2.457 in)
Bore
101 mm (3.98 in)
Compression ratio
11.5:1
Control
DOHC, 4 valves per cylinder, chain-driven
Valve - diameter
Exhaust
33 mm (1.3 in)
Intake
38 mm (1.5 in)
Valve clearance
Exhaust at: 20 °C (68 °F)
0.25… 0.30 mm (0.0098… 0.0118 in)
Intake at: 20 °C (68 °F)
0.10… 0.15 mm (0.0039… 0.0059 in)
Crankshaft bearing
Sleeve bearing
Conrod bearing
Sleeve bearing
Piston
Forged light alloy
Piston ring
1 L-ring, 1 tapered compression piston ring, 1 oil scraper ring
Engine lubrication
Dry sump lubrication system with two rotor pumps
Primary transmission
35:67
Clutch
Multidisc clutch in oil bath/hydraulically activated
Transmission
6-gears, claw-shifted
Transmission ratio
1st gear
12:35
2nd gear
15:32
Summary of Contents for 990 SUPERMOTO R AUS/UK
Page 2: ......
Page 17: ...15...
Page 18: ...4 VIEW OF VEHICLE 16 4 1 View of vehicle front left side example L00600 10...
Page 20: ...4 VIEW OF VEHICLE 18 4 2 View of vehicle rear right side example L00601 10...
Page 175: ...18 CLEANING CARE 173 Clean the chain p 84...
Page 217: ...INDEX 215 Winter operation checks and maintenance measures 172 Work rules 11...
