Yamaha Vector RS90RX Owner's Manual page 60

Periodic maintenance
5. Temporarily install the new V-belt on the
secondary sheave assembly only, and
then measure the V-belt position. Do not
force the V-belt between the sheaves; the
secondary sliding and fixed sheaves
must touch each other.
1. Edge of the secondary sheave assembly
2. V-belt position
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.
6. If the V-belt position is incorrect, adjust it
by removing or adding a spacer on each
V-belt position adjusting bolt.
54
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
7. Tighten the V-belt position adjusting
bolts.
V-belt position adjusting bolt tightening
torque:
10 Nm (1.0 m·kgf, 7.2 ft·lb)
8. Install the V-belt over the primary sheave
assembly.
Adjustment
Remove spacer
Not necessary (It is
correct.)
Add spacer