2011 Yamaha Motorsports FX Nytro XTX Owners Manual - Page 68

2011 Yamaha Motorsports FX Nytro XTX Manual

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Periodic maintenance and adjustment 1 2 1. Radiator cap To check the coolant level 1. 2. Place the snowmobile on a level surface and apply the parking brake. Check the coolant level in the coolant reservoir when the engine is cold. If the coolant level is below the "LOW" mark, add coolant until it reaches the "FULL" 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 water or salt water since it is harmful to the engine. If water has been used instead of coolant, replace it with coolant as soon as possible, otherwise the cooling system will not be protected against frost and corrosion. If water has been added to the coolant, have a Yamaha dealer check the antifreeze content of the coolant as soon as possible, otherwise the effectiveness of the coolant will be reduced. [ECS00492] 1. "FULL" mark 2. "LOW" mark Bleeding the cooling system The cooling system must be bled if the coolant reservoir becomes empty, if air can be seen in the cooling system, or if there is a cooling system leak. Consult a Yamaha dealer. ECS00500 NOTICE Operating the engine with an improperly bled cooling system can cause overheating and severe engine damage. Replenishing the coolant 1. 2. 3. Place the snowmobile on a level surface and apply the parking brake. Remove the shroud. (See page 50 for removal procedures.) Remove the coolant reservoir cap and add coolant until it reaches the "FULL" mark. 1. Coolant reservoir cap 62

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Periodic maintenance and adjustment
62
To check the coolant level
1.
Place the snowmobile on a level surface
and apply the parking brake.
2.
Check the coolant level in the coolant
reservoir when the engine is cold. If the
coolant level is below the “LOW” mark,
add coolant until it reaches the “FULL”
mark. (See the following section “Replen-
ishing the coolant” for more details.)
NOTICE:
If coolant is not available,
use distilled water or soft tap water in-
stead. Do not use hard water or salt
water since it is harmful to the engine.
If water has been used instead of cool-
ant, replace it with coolant as soon as
possible, otherwise the cooling sys-
tem will not be protected against frost
and corrosion. If water has been add-
ed to the coolant, have a Yamaha deal-
er check the antifreeze content of the
coolant as soon as possible, other-
wise the effectiveness of the coolant
will be reduced.
[ECS00492]
Bleeding the cooling system
The cooling system must be bled if the cool-
ant reservoir becomes empty, if air can be
seen in the cooling system, or if there is a
cooling system leak. Consult a Yamaha deal-
er.
NOTICE
ECS00500
Operating the engine with an improperly
bled cooling system can cause overheat-
ing and severe engine damage.
Replenishing the coolant
1.
Place the snowmobile on a level surface
and apply the parking brake.
2.
Remove the shroud. (See page 50 for re-
moval procedures.)
3.
Remove the coolant reservoir cap and
add coolant until it reaches the “FULL”
mark.
1.
Radiator cap
1.
“FULL” mark
2.
“LOW” mark
1.
Coolant reservoir cap
1
2