Technical Specifications

Name Value
Front Sprocket16 tooth
Rear Sprocket42 tooth
Sprocket Ratio2.63
Chain Type530
Chain Length102 Links
Float Level23mm
Fuel Service Level2-3 mm below carb bowl mating surface
Clutch TypeWet, Multi-disc
Clutch ConstructionStacked Steel & fiber clutch plates
Fuel Capacity14 Liters (Approx 4.5 gallons)
Electrical System12VDC
Engine652cc DOHC, Air Cooled, Inline 4
Front SuspensionTelescopic Forks
Steering Geometry63 Rake /4.25 in Trail
Steering Head Angle39.5
Rear SuspensionSwing-arm / Twin Shocks
Front Brakes245mm Disc, Forward Mounted Caliper (on B1 Rearward Mounted Caliper all years after)
Rear Brakes180X40mm Drum, Dual Shoe
Gear Box5 Speed Constant Mesh (Manual)
Shift Pattern1-N-2-3-4-5
Climbing Ability30
Breaking Distance12m from 50kph
Minimum Turning Distance2.4m
Road Clearance145mm
Saddle Height31.9
Starting SystemElectric, Kick or Both
Cylinder Numbering MethodLeft to Right 1-2-3-4
Firing Order1-2-4-3
Valves8 valve (4 Intake, 4 Exhaust) Shim Under-bucket
Bore / Stroke62x54mm
Compression Ratio9.5:1
Max Horse Power64 H.P. @ 8,500 RPM
Max Torque5.8kg @ 7,000RPM
Carburetors4 x Mikuni VM24ss
Dry Weight211kg
Overall LengthUS: 2,170mm (Europe: 2,220mm)
Wheel Base55.9in (1,420 mm)
LubricationTwin Rotor oil pump
FrameTubular Steel Double Cradle
Gear Ratio1st 2.33
2nd 1.63
3rd 1.27
4th 1.04
5th - 0.89
Primary Reduction Ratio2.55
Final Reduction Ratio2.56
Overall Drive Ratio5.81 @ Top Gear
AlternatorNippon Denso 037000-1340
Regulator RectifierShindengen SH221-12
Ignition CoilsToyo Denso IGC088K-0000 / IGC089K-0000
Starter MotorMitsuba SM-224D
Fuel Consumption45mpg Avg