Spec Sheet
The information below is specific to the Honda - CB 650 B 81, showing anything for service information to the amount of fork oil or even the tyre pressures. If you would like to contribute any missing information, please use the edit link below.
Back.Bike Info
CC:
650
Service
Chain Freeplay mm:
15-25
Engine Oil Classification API:
SE
Engine Oil Grade SAE:
10W/40
Engine Oil quantity with filter (litres):
3.0
Idle Speed (rpm):
1050 ± 100
Spark Plugs Gap (mm):
0.6 ~ 0.7
Tyre Pressure Back Bar / psi:
28 psi
Tyre Pressure Back - Pillion Bar / psi:
32 psi
Tyre Pressure Front Bar / psi:
28 psi
Tyre Pressure Front - Pillion Bar / psi:
28 psi
Valve Clearance Cold - Exhaust:
0.08 mm
Valve Clearance Cold - Inlet:
0.05 mm
Brakes
Front:
Twin Disc
Rear:
Drum
Brake fluid:
DOT 3
Dimensions
Dry Weight:
204 kg
Fuel Capacity:
13.5 litres
Height:
1160 mm
Length:
2215 mm
Rake:
59 degrees
Reserve Fuel Capacity:
2.5 litres
Trail:
131 mm
Wet Weight:
218 kg
Wheelbase:
1470 mm
Width:
870 mm
Electrics
Voltage:
12v
Battery:
YB12A-A
Bulb-Headlight:
60/55 W
Charging System:
A.C. generator
Ignition:
CDI
Main Fuse:
30 amp
Spark Plugs (Iridium):
NGK DR8EIX
Engine
Type:
Air Cooled 4 Stroke SOHC Straight Four
Air Filtration:
Paper element
Bore x Stroke:
59.80 x 55.80 mm
Carburation:
4 Keihin VB44A Constant-Velocity
Compression Ratio:
9.0:1
Displacement:
627 cc
Firing Order:
1-2-4-3
Fuel Minimum Octane Rating:
91 RON
No. of Valves:
8
Transmission
Chain Number of Links:
102
Clutch Type:
Wet multi plate
Final Drive:
Chain
Gearchange Pattern:
1 N 2 3 4 5
Gear Ratio 1st:
2.500
Gear Ratio 2nd:
1.722
Gear Ratio 3rd:
1.333
Gear Ratio 4th:
1.074
Gear Ratio 5th:
0.885
Primary Drive Ratio:
2.737 : 1
Sprocket front:
16
Sprocket rear:
38
Transmission:
5 speed
Misc.
Motorcycle Style:
ROADSTER
Tyres
Front:
325-19 Tubeless
Rear:
400-18 Tubeless
Add information to the model
All information presented on the website is given to the best of our knowledge at the given time. All information is intended to only as a guide. A major Japanese manufacturer's quote:
We reserve the right to vary our specification with or without notice, and as such time and in such manner as we think fit.