Yamaha 2002 YB50, Service Manual

Page: 68 / 161

ENG
INSPECTION AND REPAIR
4-17
2. Inspect:
• Bearings (crankshaft) Pivot the inner bea-
ring guide.
Excessive play/Non-uniformity
Change
Pitting/Damage
Change
PRIMARY PULLEY WHEEL
1. Inspect:
• Primary sliding pulley wheel
• Primary fixed pulley wheel
Wear/Cracks/Striping/Damage
Change
2. Check:
• Free movement Insert the bushing in the
primary sliding pulley wheel and check if
there is free movement.
If it catches or there is excessive play
Change the pulley wheel or the bushing.
3. Measure:
• External diameter (roller)
Outside specified value Change.
External diameter (roller)
15.0 mm
Limit:
14,5 mm
Deflection limit “C”:
0.03 mm
Clearance on big end side “D”:
0.2 ~ 0.5 mm
Free play at small end “F”:
0.4 ~ 0.8 mm