22
TECHNICAL DATA
154
22.1
Engine
Design
1-cylinder 4-stroke engine, water-cooled
Displacement
690 cm³ (42.11 cu in)
Stroke
84.5 mm (3.327 in)
Bore
102 mm (4.02 in)
Compression ratio
12.6:1
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
Piston pin with
DLC
coating
Pistons
Forged light alloy
Piston rings
1 L-ring, 1 tapered compression piston ring, 1 oil scraper ring
Engine lubrication
Semi-dry sump lubrication system with two rotor pumps
Primary transmission
36:79
Clutch
APTC™
antihopping clutch in oil bath/hydraulically operated
Transmission
6-gear, claw shifted
Transmission ratio
1st gear
14:35
2nd gear
16:28
3rd gear
21:28
4th gear
21:23
Summary of Contents for 690 DUKE R EU
Page 1: ...OWNER S MANUAL 2015 690 Duke US Art no 3213273en...
Page 2: ......
Page 12: ...2 SAFETY ADVICE 10 2 4 Overview of labels M00693 10...
Page 22: ...4 VIEW OF VEHICLE 20 4 1 View of vehicle front left side M00691 10...
Page 24: ...4 VIEW OF VEHICLE 22 4 2 View of vehicle rear right side M00692 10...
