Model Code

Model Name

Year

2M0 & 2M1

2YB

XS650SE
XS650SF
XS650SE

1978
1979
1978

Valve Clearance Cold  
Intake 0.10 mm
Exhaust 0.15 mm
Compression  
Pressure 9 - 11 Bar
Ratio 1 : 8.5
Engine Oil 20W50 - 20W40
Clutch  
Plates Friction + Clutch 7 + 6
Thickness Friction plate 3 mm
Thickness Clutch plate 1.4 mm
Adjustment Screw 1/4 turn back
Ignition  
Point gap 0.3 - 0.4 mm
Spark Plugs NGK BP-7ES
Spark plug gap 0.6 - 0.7 mm
Carburetor Mikuni BS 38
Main Jet 135
Pilot Jet 27.5
Chain - number of links 103
Sprocket Front 17
Sprocket Rear 34
Front Fork  
Oil Quantity 169 cc
Oil Type 10W30
Torque Specifications  
Cylinder Head M6-10Nm M8-21Nm
M10-36Nm
Crankcase M8-20Nm
Tire Pressure  
Front 1.6 - 1.8 Bar
Rear 2.0 - 2.1 Bar
Brake Fluid Dot 3 or 4