Production Model Years
1978 - 1985
Frame and Engine Numbers
6310001 - 6320000
6330001 - 6330800
6340001 - 6349336
6380001 - 6382459
6385001 - 6388255
6399951 - 6399966
6410001 - 6413588
———
6310001 - 6320000
6330001 - 6330800
6340001 - 6349336
6380001 - 6382459
6385001 - 6388255
6399951 - 6399966
6410001 - 6413588
Model Specifications
Drivetrain
Displacement 650cc
Cylinders 2
Bore x Stroke (mm) 82 x 61.5
HP @ RPM 45 @ 7250 (1978-1980)
HP @ RPM 50 @ 7250 (1981-1985)
Compression Ratio 9.2:1
Valves OHV, 2 per cylinder
Clutch Dry, single plate, cable operated
Transmission 5 speed, foot shifted
Final Drive Driveshaft
Running Gear
Frame Tubular steel double cradle
Front Suspension Hydraulically damped telescopic fork
Rear Suspension Twin shock swingarm
Front Brakes ATE 260mm hydraulic disc single piston
Front Brakes Brembo 260mm hydraulic disc single piston (1979-on)
Rear Brakes 200mm drum, single leading shoe
Electrical
Ignition Battery/coil
Spark Plugs Bosch W5DC
Generator Bosch G1 14 13V 21A 240W
Capacities & Measurements
Weight 205kg
Fuel 22l
Wheelbase 1400mm
Top Speed 175kph
Number Produced 29454

Serial numbers 638xxxx through 639xxxx were delivered to the United States; the remainder were delivered to the rest of the world.

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