Yamaha RS90GTZ Service Manual page 147

PRIMARY SHEAVE AND DRIVE V-BELT
2. Inspect:
• Primary sheave spring
Cracks/damage → Replace.
3. Measure:
• Primary sheave spring (standard) free
length
Out of specification → Replace the primary
sheave spring.
Primary sheave spring (standard)
free length:
RS90GTZ:
89.8 mm (3.54 in)
RS90LTGTZ:
93.4 mm (3.68 in)
RST90GTZ:
83.4 mm (3.28 in)
TIP
When changing the primary sheave springs,
refer to "GEAR SELECTION" in CHAPTER 2.
4. Inspect:
• Primary sheave cap bush
• Sliding sheave bush
Cracks/damage → Replace.
Primary/Secondary bushing jig:
YS-42424
Clutch bushing press:
90890-01529
4-6
POWR
TR