Yamaha FX Nytro FX10X Owner's Manual page 59

1. Radiator cap
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.)
1. "FULL" mark
2. "LOW" mark
ECS00490
CAUTION:
Hard water or salt water is harmful to the
G
engine parts. You may use boiled or dis-
tilled water, if soft water is not available.
Tap water can be used temporarily in an
G
emergency.
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 deal-
er.
ECS00500
CAUTION:
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. Coolant reservoir cap
53