Yamaha FX Nytro 2008 Manuel D'atelier page 274

SECONDARY SHEAVE
2. Measure:
• Secondary sheave clearance a
Out of specification → Adjust.
Secondary sheave clearance:
35.0 ~ 35.8 mm (1.38 ~ 1.41 in)
3. Calculate:
• Shim thickness
NOTE:
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).
4. Adjust:
• Secondary sheave clearance
Adjustment steps:
• Disassemble the secondary sheave.
• Remove the bolts and original shims 1.
• 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.
NOTE:
Yamaha recommends keeping the original shims.
Shims:
Part number
90201-061H1
90201-06037
4-15
POWR
TR
Thickness
0.5 mm (0.02 in)
1.0 mm (0.04 in)