Installation - Yamaha RS90GTZ Service Manual

SECONDARY SHEAVE
4. Measure:
• Secondary sheave clearance
Out of specification → Adjust.
Secondary sheave clearance:
35.0 ~ 35.8 mm (1.38 ~ 1.41 in)
5. Calculate:
• Shim thickness
TIP
For example, if the clearance is 36 mm (1.42
in), install a 0.5 mm (0.02 in) shim on each bolt
so the clearance is 35.5 mm (1.40 in).
6. Adjust:
• Secondary sheave clearance
Adjustment steps:
• Disassemble the secondary sheave.
• Remove the bolts and original shims
• Install new shims of the proper thickness and
reassemble the secondary sheave.
• Measure the secondary sheave clearance
again.
Repeat these steps until the clearance is
within specification.
TIP
Yamaha recommends keeping the original
shims.
Shims:
Part number
90201-061H1
90201-06037

INSTALLATION

1. Lubricate:
• Splines (fixed sheave)
Recommended grease:
ESSO beacon 325 grease or
Aeroshell grease #7A
4-18
POWR
TR
.
Thickness
0.5 mm (0.02 in)
1.0 mm (0.04 in)