2008 Yamaha Motorsports FX Nytro RTX Owners Manual - Page 59

2008 Yamaha Motorsports FX Nytro RTX Manual

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Periodic maintenance Bleeding the cooling system The cooling system must be bled of air 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 CAUTION: Operating the engine with an improperly bled cooling system can cause overheating and severe engine damage. 1. Radiator cap To check the coolant level 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.) Replenishing the coolant 1. 2. Remove the shroud. (See page 43 for removal procedures.) Remove the coolant reservoir cap and add coolant until it reaches the "FULL" mark. 1. "FULL" mark 2. "LOW" mark ECS00490 1. Coolant reservoir cap CAUTION: G G Hard water or salt water is harmful to the engine parts. You may use boiled or distilled water, if soft water is not available. Tap water can be used temporarily in an emergency. 53

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Periodic maintenance
53
To check the coolant level
Check the coolant level in the coolant reser-
voir when the engine is cold. If the coolant lev-
el is below the “LOW” mark, add coolant until
it reaches the “FULL” mark. (See the following
section “Replenishing the coolant” for more
details.)
CAUTION:
ECS00490
●
Hard water or salt water is harmful to the
engine parts. You may use boiled or dis-
tilled water, if soft water is not available.
●
Tap water can be used temporarily in an
emergency.
Bleeding the cooling system
The cooling system must be bled of air 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 deal-
er.
CAUTION:
ECS00500
Operating the engine with an improperly
bled cooling system can cause overheat-
ing and severe engine damage.
Replenishing the coolant
1.
Remove the shroud. (See page 43 for re-
moval procedures.)
2.
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