Yamaha RS90K, Service Manual

Page: 270 / 841

4-6
POWR
TR
PRIMARY SHEAVE AND DRIVE V-BELT
Rivet replacement steps:
• Remove old rivet with the appropriate drill.
• Insert the rivet
1 from the ID mark 2 side.
• Press or peen the rivet head so that the diame-
ter
a
of the rivet head measures 8.2 mm
(0.32 in) or larger.
6. Measure:
• Bushing inside diameter
Out of specification
→
Replace as a set.
NOTE:
When replacing the weight and roller bushings, use
the YXR clutch bushing jig kit.
Ê
Removing
Ë
Installing
Bushing inside diameter:
Roller
È
:
New: 9.077 mm (0.357 in)
Wear limit: 9.3 mm (0.366 in)
Weight
É
:
New: 8.077 mm (0.318 in)
Wear limit: 8.3 mm (0.327 in)
YXR clutch bushing jig kit:
YS-39752
È É
Ê Ë
ASSEMBLY
1. Install:
• Sliding sheave
(onto the spider)
NOTE:
Be sure the sliding sheave match mark (X) is
aligned with the spider match mark (X).