Periodic maintenance and adjustment
79
4.
Start the engine and add coolant until the
coolant level stabilizes, and then stop the
engine.
5.
Check for any coolant leakage. If coolant
is leaking, check for the cause.
TIP
If you find any leaks, consult a Yamaha deal-
er.
6.
Fill the coolant reservoir with coolant un-
til it reaches the “COLD LEVEL” mark.
7.
Install the coolant reservoir cap.
8.
Install the top cover, the right side cover,
and the shroud, or close the shroud.
ESU13915
V-belt
WARNING
EWS00403
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
ECS00831
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 (RST90TF / RST90TFL / RST90TFY),
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, or
close the shroud.
To replace and adjust the V-belt
WARNING
EWS00412
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
ECS00512
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
ensure proper clutch performance.
Have a Yamaha dealer make this adjust-
ment.
1.
Place the snowmobile on a level surface
and apply the parking brake.
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)
U8JV70E0.book Page 79 Monday, April 6, 2015 11:49 AM