KYMCO MX’er 125 Service Manual page 102

9. 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
Item
Movable drive face bushing I.D.
Drive face collar O.D.
Drive belt width
Clutch lining thickness
Clutch outer I.D.
Driven face spring free length
Driven face O.D.
Movable driven face I.D.
Weight roller O.D.
TORQUE VALUES
Drive face nut
Clutch outer nut
SPECIAL TOOLS
Universal holder E017
Bearing puller E008
TROUBLESHOOTING
Engine starts but motorcycle won't move
• Worn drive belt
• Broken ramp plate
• Worn or damaged clutch lining
• Broken driven face spring
Engine stalls or motorcycle creeps
• Broken clutch weight spring
Standard (mm)
27.0 27.021
26.97 26.99
20.0 21.0
130.0 130.2
33.965 33.485
34.000 34.025
20.95 21.1
5.5 6.5kgf-m
5.0 6.0kgf-m
Service Limit (mm)


Clutch spring compressor E027
Oil seal and bearing install E014
Lack of power
• Worn drive belt
• Weak driven face spring
• Worn weight roller
• Fouled drive face
MX'er SYSTEM
27.06
226.94
19.0
2.0
130.5
83.2
33.94
34.06
20.42
9-2