Engine Starts But Motorcycle Won‘t Move; Engine Stalls Or Motorcycle Creeps; Lack Of Power - KYMCO Super 8 50 Service Manual

9. DRIVE AND DRIVEN PULLEYS
SERVICE INFORMATION ....................... 9-1
TROUBLESHOOTING .............................. 9-1
LEFT CRANKCASE COVER ................... 9-2
KICK STARTER ........................................ 9-2
SERVICE INFORMATION
GENERAL INSTRUCTIONS
 The drive pulley, clutch and driven pulley can be serviced with the engine installed.
 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
Clutch drive plate nut
SPECIAL TOOLS
Universal holder
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
9-1
DRIVE BELT ........................................... 9-5
DRIVE PULLEY ..................................... 9-6
CLUTCH/DRIVEN PULLEY ................. 9-9
Standard (mm)
23.989~24.025
23.960~23.974
107.0-107.2
33.965-33.485
34.0-34.025
15.920~16.080
5.5~6.5kgf-m
3.5~4.5kgf-m
5.0-6.0kg-m
Service Limit (mm)
17.5


Clutch spring compressor

Lack of power

 Worn drive belt
 Weak driven face spring
 Worn weight roller
 Fouled drive face
Super 8 50
24.06
23.94
16.5
1.5
107.5
97
33.94
34.06
15.4