KYMCO ZX/SCOUT 50 Service Manual page 76

8
. KICK STARTER/DRIVE PULLEY/
CLUTCH/DRIVEN PULLEY
SERVICE INFORMATION
GENERAL INSTRUCTIONS
• Avoid getting grease and oil on the drive belt and pulley faces.
SPECIFICATIONS
Item
Drive pulley collar O.D.
Movable drive face I.D.
Weight roller O.D.
Clutch outer I.D.
Driven face spring free length
Driven face O.D.
Movable driven face I.D.
Drive belt width
TORQUE VALUES
Drive face nut
Clutch outer nut
Clutch drive plate nut
SPECIAL TOOLS
Lock nut wrench, 39mm
Clutch spring compressor
Bearing outer driver 37x40mm
One-way clutch puller
TROUBLESHOOTING
Engine starts but motorcycle won't move
• Worn drive belt
• Broken ramp plate
• Worn or damaged clutch lining
Engine stalls or motorcycle creeps
• Broken clutch weight spring
SC10AS
Standard (mm) Service Limit (mm)
20.01 20.025
20.035 20.085
13.0
107 107.2
87.9
33.965 33.985
34.0 34.25
18
3.5 4.0kg-m
3.5 4.5kg-m
5.0 6.0kg-m
24.24
19.97
12.4
107.5
82.6
33.94
34.06
17
Universal holder
Lock nut socket wrench, 32mm
Bearing driver pilot, 17mm
Outer driver, 24x26mm
Poor performance at high speed or
lack of power
• Worn drive belt
• Weak driven face spring
• Worn weight roller
• Faulty driven face
ZX / SCOUT
8-2