Checking The Primary Sheave; Checking The Secondary Sheave - Yamaha Rhino 450 YXR45FAV Service Manual

PRIMARY AND SECONDARY SHEAVES

CHECKING THE PRIMARY SHEAVE

1. Check:
• weight outside diameter a
Out of specification → Replace the weight.
Weight outside diameter
30 mm (1.18 in)
<Limit>: 29.5 mm (1.16 in)
2. Check:
• primary pulley sliders
• primary sliding sheave splines
Wear/cracks/damage → Replace.
• spacer
• primary pulley cam
Cracks/damage → Replace.
3. Check:
• primary sliding sheave
• primary fixed sheave
Cracks/damage → Replace.

CHECKING THE SECONDARY SHEAVE

1. Check:
• secondary fixed sheave smooth operation
• secondary sliding sheave smooth operation
Scratches/damage → Replace as a set.
2. Check:
• torque cam grooves 1
Wear/damage → Replace.
3. Check:
• guide pins 2
Wear/damage → Replace.
4. Check:
• secondary sheave spring
Damage → Replace.
5. Measure:
• secondary sheave spring free length a
Out of specification → Replace the second-
ary sheave spring.
Free length
121.4 mm (4.78 in)
<Limit>: 115.33 mm (4.54 in)
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ENG