Yamaha YB50 Service Manual page 83

ASSEMBLY AND ADJUSTMENT OF ENGINE
7. Install:
• Conical pin
• Crankcase cover seal
• Secondary pulley wheel assembly
• Clutch drum
8. Tighten:
• Nut (secondary pulley wheel)
Use the pulley wheel support
Pulley wheel clamp
90890-01701
Clutch drum nut
4.0 m • kg
9. Install
• O-ring
PRIMARY PULLEY WHEEL
1. Clean:
• Surface of primary sliding pulley wheel
• Surface of primary fixed pulley wheel
• Hubs
• Rollers
• Roller races
2. Install:
• Counterbalance
• Race
• Runner
• Hub
3. Check:
• Operation of race Rough operation
Repair.
4. Install:
• Primary pulley wheel assembly
• Hub
5. Install:
• Trapezoidal belt
NOTE:
The trapezoidal belt should be installed with
the arrow facing towards the front.
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MOT