Section 09 COOLING SYSTEM
Subsection 01 (CIRCUIT, COMPONENTS AND CARE)
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2
1. Cutting clamp
2. Securing clamp
INSPECTION
Check general condition of hoses and clamp tight-
ness.
For the intercooler servicing, refer to INTAKE SYS-
TEM.
Check the weep hole if there is oil or coolant.
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1. Weep hole
NOTE: Flowing coolant indicates a damaged ro-
tary seal. Oil out of the weep hole indicates a non
working oil seal.
DRAINING THE SYSTEM
WARNING
Never drain or refill cooling system when en-
gine is hot.
Remove expansion tank cap.
To drain cooling system, unscrew cooling system
drain plug at the rear of ride plate.
NOTE: Raising the front of the vehicle will con-
tribute to drain the cooling system.
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1. Cooling drain plug
Use an appropriate container to collect coolant.
Dispose coolant as per local regulations.
Do not reinstall drain plug at this time.
CLEANING
Cleaning the cooling system as per the following
procedure is required when engine overheats (as-
suming everything else is operating normally) or
each time coolant is replaced.
Drain the cooling system. Clean thoroughly using
the Valvoline Zerex Super Cleaner (or equivalent).
Add the cleaning product in coolant expansion
tank then fill cooling system with demineralized
water.
Reinstall cap on coolant expansion tank.
Install watercraft in a water tank or ride on a wa-
terplane. Start engine and run for approximately
15 minutes mostly at full throttle.
IMPORTANT: Ensure thermostat opens so that
the cleaning product flows in ride plate properly.
Stop engine and let the cleaning product work for
12 to 16 hours.
Thereafter, engine can be run one last time to soak
off deposits.
Drain and thoroughly rinse the cooling system
with clean fresh water.
490 smr2004-Complete Line Up
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