Filter
Top Products
Periodic maintenance and adjustment
88
ESU13912
V-belt
WARNING
EWS00402
● Coming in contact with the rotating V-
belt or clutch parts can cause severe in-
jury or death. Never run the engine with
the drive guard removed.
● Make sure that the drive guard is in-
stalled securely before operating the
snowmobile to protect against severe
injury or death from a broken V-belt or
other part should it come off the snow-
mobile while it is in operation.
NOTICE
ECS00830
Never run the engine with the V-belt re-
moved. Clutch components can be dam-
aged.
The V-belt should be checked before each
ride.
To check the V-belt
1. Remove the shroud and the left side cov-
er (RS90GT / RS90LTGT / RST90GT),
or open the shroud (RST90), and then re-
move the drive guard. (See page 27 for
drive guard removal procedures.)
2. Check the V-belt for wear and damage.
Replace if necessary.
3. Install the drive guard, and then install the
left side cover and the shroud (RS90GT /
RS90LTGT / RST90GT), or close the
shroud (RST90).
To replace and adjust the V-belt
WARNING
EWS00411
When installing a new V-belt, make sure
that it is positioned properly. Otherwise,
the V-belt clutch engagement speed will
be changed and the snowmobile may
move unexpectedly when the engine is
started, which could cause an accident.
NOTICE
ECS00511
As the V-belt wears, the position of the V-
belt will change. If the V-belt position is out
of specification, it must be adjusted to en-
sure proper clutch performance.
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 (RS90GT / RS90LTGT / RST90GT),
or open the shroud (RST90), and then re-
move the drive guard. (See page 27 for
drive guard removal procedures.)
3. Remove the screws, and then pull the left
lower cover outward to remove it
(RS90GT / RS90LTGT / RST90GT).
1. V-belt wear limit
New V-belt width:
34.5 mm (1.36 in)
V-belt wear limit width:
32.5 mm (1.28 in)
U8JA11E0.book Page 88 Monday, June 14, 2010 10:22 AM