Inspection - Yamaha VK540EF Service Manual

A B
PRIMARY SHEAVE AND DRIVE V-BELT
4-5
ESS00121

INSPECTION

1. Inspect:
D Spider 1
D Sliding sheave 2
D Fixed sheave 3
D Primary sheave cap 4
Cracks/damage ! Replace.
2. Inspect:
D Primary sheave spring 1
Cracks/damage ! Replace.
3. Measure:
D Primary sheave spring free length a
Out of specification ! Replace the primary
sheave spring.
Primary sheave spring free length
a :
85.4 mm (3.36 in)
NOTE:
When changing the primary sheave springs, re-
fer to "GEAR SELECTION" in CHAPTER 2.
4. Measure:
D Bushing-to-sheave clearance
Out of specification ! Replace bushing.
Use a feeler gauge 1
Bush clearance (primary sheave
cap) A :
0.25 mm (0.01 in)
Bush clearance (sliding sheave) B :
0.25 mm (0.01 in)
5. Measure:
D Bushing inside diameter
Out of specification ! Replace.
Bushing inside diameter:
Primary sheave cap
New: 28.0 mm (1.10 in)
Wear limit: 28.2 mm (1.11 in)
Sliding sheave
New: 40.0 mm (1.57 in)
Wear limit: 40.2 mm (1.58 in)
POWR
TR