Service Information; Troubleshooting - KYMCO VITALITY 50 Manual

9
. 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 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
Universal holder
Clutch spring compressor

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
19.96 19.974
20.011 20.052
15.92 16.08
107 107.2
87.9 (2-stroke)
95 (4-stroke)
33.965 33.985
34.0 34.25
3.5 4.0kg-m
3.5 4.5kg-m
5.0 6.0kg-m
E017
E034
VITALITY 50
Standard (mm)
18
Poor performance at high speed or
lack of power
• Worn drive belt
• Weak driven face spring
• Worn weight roller
• Faulty driven face
VITALITY 50
Service Limit (mm)
19.94
20.6
15.4
107.5
82.6 (2-stroke)
90 (4-stroke)
33.94
34.06
17
9-2