Yamaha Vector RS90LTGTZ Owner's Manual page 64

Periodic maintenance and adjustment
Standard V-belt position:
From 1.5 mm (0.06 in) above the edge
of the secondary sheave assembly to
0.5 mm (0.02 in) below the edge
8. If the V-belt position is incorrect, adjust it
by removing or adding a spacer on each
V-belt position adjusting bolt.
1. V-belt position adjusting bolt
2. Spacer
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
58
Adjustment
Remove spacer
Not necessary (It is
correct.)
Add spacer
9. Tighten the V-belt position adjusting
bolts.
V-belt position adjusting bolt tightening
torque:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
10. Install the V-belt over the primary sheave
assembly.
11. Rotate the secondary sliding sheave
clockwise and push it so that it separates
from the secondary fixed sheave.
1. Secondary sliding sheave
2. Secondary fixed sheave
12. Install the V-belt between the secondary
sliding and fixed sheaves.
1. V-belt
13. Place the left lower cover in the original
position, and then install the bolts and
screws.