Kymco MO GD125, MO GD 150 Service Manual - chap 08 (trasmissione)
8. DRIVE AND DRIVEN PULLEYS/
KICK STARTER
8-0
GRAND DINK 125/15 0
8
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DRIVE AND DRIVEN PULLEYS/
KICK STARTER
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SCHEMATIC DRAWING ---------------------------------------------- 8- 1
SERVICE INFORMATION -------------------------------------------- 8- 2
TROUBLESHOOTING ------------------------------------------------- 8- 2
LEFT CRANKCASE COVER------------------------------------------ 8- 3
DRIVE PULLEY -------------------------------------------------------- 8- 4
CLUTCH/DRIVEN PULLEY ------------------------------------------ 8- 8
KICK STARTER -------------------------------------------------------- 8-15
8
8. DRIVE AND DRIVEN PULLEYS/
KICK STARTER
8-1
GRAND DINK 125/15 0
SCHEMATIC DRAWING
8. DRIVE AND DRIVEN PULLEYS/
KICK STARTER
8-2
GRAND DINK 125/15 0
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
Standard (mm)
Service Limit (mm)
Movable drive face bushing I.D.
33.000_ 33.025
33.06
Drive face collar O.D.
32.006_ 32.009
31.90
Drive belt width
19.0
17.5
Clutch lining thickness
3.963_ 4.037
2.0
Clutch outer I.D.
130.0_ 130.2
130.5
Driven face spring free length
88.3
83.2
Driven face O.D.
33.965_ 33.985
33.94
Movable driven face I.D.
34.00_ 34.025
34.06
Weight roller O.D.
16.99_ 17.00
16.00
TORQUE VALUES
Drive face nut 49.0_ 58.8N-m
Clutch outer nut 49.0_ 58.8N-m
Clutch drive plate nut 49.0_ 58.8N-m
SPECIAL TOOLS
Universal holder Clutch spring compressor
Bearing driver Lock nut wrench, 39mm
Kick starter spring remover
TROUBLESHOOTING
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
• Broken driven face spring • Faulty driven face
Engine stalls or motorcycle creeps
• Broken clutch weight spring
8. DRIVE AND DRIVEN PULLEYS/
KICK STARTER
8-3
GRAND DINK 125/15 0
LEFT CRANKCASE COVER
REMOVAL
Loosen the drive belt air tube band screw.
Remove the left crankcase cover bolts and left
crankcase cover.
Remove the seal rubber and dowel pins.
INSTALLATION
Install the dowel pins and the gasket.
Install the left crankcase cover.
Install the cable clamp to the specified
location. Install and tighten the left crankcase
cover bolts.
Kick Lever
Left Crankcase Cover
Air Tube Band
Bolts
• Do not pull out the kick starter spindle.
Press in the kick starter spindle when
installing the left crankcase cover.
＊
Dowel Pins
Gasket
Left Crankcase Cover
8. DRIVE AND DRIVEN PULLEYS/
KICK STARTER
8-4
GRAND DINK 125/15 0
Install the drive belt air tube and tighten the
tube band screw.
DRIVE PULLEY
REMOVAL
Remove the left crankcase cover.
Hold the drive pulley using an universal
holder and remove the drive face nut and
washer.
Remove the drive pulley face.
Universal Holder
Remove the drive belt from the movable drive
face.
INSPECTION
Check the drive belt for cracks, separation or
abnormal or excessive wear.
Measure the drive belt width.
Service Limit: 17.5mm replace if below
Drive Pulley Face
Universal Holder
• Use specified genuine parts for
replace-ment.
＊
Movable Drive Face
Drive Belt
Tube Band Screw
Special
8. DRIVE AND DRIVEN PULLEYS/
KICK STARTER
8-5
GRAND DINK 125/15 0
Remove the movable drive face assembly.
Remove the drive pulley collar.
DISASSEMBLY
Remove the ramp plate.
Remove the weight rollers.
INSPECTION
Check each weight roller for wear or damage.
Measure each weight roller O.D.
Service Limit: 16.00mm replace if below
Drive Pulley Collar
Ramp Plate
Weight Roller
Movable Drive Face Assembly
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