Service manual

【6-20】
E
NGINE
DRIVE AND DRIVEN PULLEYS
SERVICE INFORMATION
GENERAL INSTRUCTIONS
The drive pulley, clutch and driven pulley can be serviced
with the engine installed in the frame.
Avoid getting grease and oil on the drive belt and pulley
faces. Remove any oil or grease from them to minimize the
slipping of drive belt and drive pulley.
SPECIFICATIONS
TORQUE VALUES
Drive face nut 5.0 – 6.0kgf-m
Clutch outer nut 5.0 – 6.0kgf-m
Item Standard (mm) Service Limit (mm)
Movable drive face bushing I.D.
ψ27.00 – 27.035 ψ27.06
Drive face collar O.D.
ψ26.984 – 26.96 ψ26.94
Drive belt width 23.6 – 24.4 22.0
Clutch lining thickness 3.963 – 4.037 2.0
Clutch outer I.D.
ψ153 – 153.2 ψ153.5
Driven face spring free length --- 131
Weight roller O.D.
ψ22.92 – 23.08 ψ22