Yamaha 5KM2-AE1, Service Manual

Page: 202 / 431

4 - 56
ENG
PRIMARY AND SECONDARY SHEAVES
CHEKING 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 puller slider
●
Primary sliding sheave splines
Wear/cracks/damage
→
Replace.
●
Spacer
●
Primary puller 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 groove
1
Wear/damage
→
Replace.
3.Check:
●
Guide pin
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:
124.2 mm (4.89 in)
<Limit>: 121.2 mm (4.77 in)