Yamaha RS90GTZ Service Manual page 57

DRIVE V-BELT
2. Adjust the position of the V-belt by remov-
ing or adding a shim
bolt .
V-belt position
More than 1.5 mm
(0.06 in) above the
edge
From 1.5 mm (0.06
in) above the edge
to –0.5 mm (–0.02 in)
below the edge
More than –0.5 mm
(–0.02 in) below the
edge
Part number
90201-061H1
90201-06037
3. Tighten:
• Secondary sheave adjusting bolt
Secondary sheave adjusting bolt:
10 Nm (1.0 m•kgf, 7.2 ft•lbf)
4. Inspect:
• Drive V-belt
Cracks/damage/wear → Replace.
Oil or grease on the V-belt → Check the pri-
mary and secondary sheaves.
5. Inspect:
• Primary sheave
• Secondary sheave
Oil or grease on the primary and secondary
sheaves → Use a rag soaked in lacquer
thinner or solvent to remove the oil or
grease, and then check the primary and
secondary sheaves.
2-34
INSP
ADJ
on each adjusting
Adjustment
Remove a shim
Not necessary
(It is correct.)
Add shim
Thickness
0.5 mm (0.02 in)
1.0 mm (0.04 in)