Yamaha Vector RS90LTGTZ Owner's Manual page 63

Have a Yamaha dealer make this adjust-
ment.
1. Place the snowmobile on a level surface
and apply the parking brake.
2. Remove the shroud and the left side cov-
er, and then remove the drive guard.
(See pages 21 and 42 for removal proce-
dures.)
3. Remove the screws and bolts, and then
pull the left lower cover outward to re-
move it.
1 2
1. Screw
2. Bolt
3. Left lower cover
4. 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
5. Pull the V-belt up over the secondary
fixed sheave.
Periodic maintenance and adjustment
1
1. V-belt
6. Remove the V-belt from the secondary
sheave assembly and primary sheave
3
assembly.
7. 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
57