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Periodic maintenance and adjustment
gine oil drain bolts, the cylinder head cap,
and the oil filler cap are installed correct-
ly.
19. Turn the engine off, and then connect the
oil level gauge coupler. NOTICE: If oil is
leaking or the oil level warning indica-
tor comes on when the engine is run-
ning, immediately turn the engine off
and have a Yamaha dealer check the
snowmobile. Continuing to operate
the engine under such conditions
could cause severe engine damage.
[ECS00471]
20. Place the bottom panel in the original po-
sition, and then install the bolts.
21. Place the right lower cover in the original
position, and then install the bolts and
screws.
1. Right lower cover
22. Install the top cover, the right side cover,
and the shroud.
ESU12014
Cooling system
The coolant level should be checked before
each ride. In addition, the cooling system
must be bled at the intervals specified in the
periodic maintenance and lubrication chart.
54
EWS00380
WARNING
Do not remove the coolant reservoir cap
when the engine is hot. Scalding hot fluid
and steam may be blown out under pres-
sure, which could cause serious injury.
When the engine has cooled, place a thick
rag or towel over the coolant reservoir
cap, and slowly rotate the cap counter-
clockwise to the detent. This procedure al-
lows any residual pressure to escape.
When the hissing sound has stopped,
press down on the cap while turning coun-
terclockwise and remove it.
1
1. Coolant reservoir cap
To check the coolant level
1.
Place the snowmobile on a level surface
and apply the parking brake.
2.
Remove the top cover. (See page 42 for
removal procedures.)
3.
Check the coolant level in the coolant re-
covery tank when the engine is cold. If the
coolant level is below the "COLD LEVEL"
mark, add coolant until it reaches the
"COLD LEVEL" mark. (See the following
section "Replenishing the coolant" for
more details.) NOTICE: If coolant is not
available, use distilled water or soft
tap water instead. Do not use hard wa-
ter or salt water since it is harmful to
the engine. If water has been used in-
stead of coolant, replace it with cool-
1
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