Filter
Top Products
Periodic maintenance and adjustment
88
RST90
RST90PGT
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 until
it reaches the “COLD LEVEL” mark.
7. Install the coolant reservoir cap.
8. Install the top cover, the right side cover,
and the shroud (RST90PGT), or close
the shroud (RST90).
ESU13913
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 (RS90P / RS90PLT / RST90PGT), or
open the shroud (RST90), and then re-
move the drive guard. (See page 28 for
drive guard removal procedures.)
2. Check the V-belt for wear and damage.
Replace if necessary.
Recommended antifreeze:
High-quality ethylene glycol antifreeze
containing corrosion inhibitors
Antifreeze and water mixing ratio:
3:2
Total amount:
RST90 5.40 L (5.71 US qt,
4.75 Imp.qt)
RST90PGT 5.40 L (5.71 US qt,
4.75 Imp.qt)
U8HV10E0.book Page 88 Monday, May 16, 2011 1:15 PM