KYMCO MX'ER 50 - Clutch;Driven Pulley; Service Information; Troubleshooting

9. KICK STARTER/DRIVE PULLEY/
CLUTCH/DRIVEN PULLEY
9-2
MX’er 50
SERVICE INFORMATION
GENERAL INSTRUCTIONS
• Avoid getting grease and oil on the drive belt and pulley faces.
SPECIFICATIONS
MX’er 50
Item
Standard (mm)
Service Limit (mm)
Drive pulley collar O.D.
20.01_ 20.025
19.97
Movable drive face I.D.
20.035_ 20.085
20.24
Weight roller O.D.
13.0
12.4
Clutch outer I.D.
107_ 107.2
107.5
Driven face spring free length
98.1
92.8
Driven face O.D.
33.965_ 33.985
33.94
Movable driven face I.D.
34.0_ 34.25
34.4
Drive belt width
17.5
16.5
TORQUE VALUES
Drive face nut 3.5_ 4.0kg-m
Clutch outer nut 3.5_ 4.5kg-m
Clutch drive plate nut 5.0_ 6.0kg-m
SPECIAL TOOLS
Lock nut wrench, 39mm Universal holder
Clutch spring compressor Lock nut socket wrench, 32mm
Bearing outer driver 37x40mm Bearing driver pilot, 17mm
One-way clutch puller Outer driver, 24x26mm
TROUBLESHOOTING
Poor performance at high speed or
Engine starts but motorcycle won‘t move lack of power
• Worn drive belt • Worn drive belt
• Broken ramp plate • Weak driven face spring
• Worn or damaged clutch lining • Worn weight roller
• Faulty driven face
Engine stalls or motorcycle creeps
• Broken clutch weight spring
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