38
Inspections and Maintenance
Exhaust System and Intercooler
Protection
Out of Water Flushing
Expel water from the exhaust system and in-
tercooler as follows:
Using the flushing connectors on the jet pump
supports, inject pressurized air (around 689
kPa (100 psi)) into the system until there is no
more water flowing from the jet pumps.
To ease the procedure, a custom hose can be
assembled. See the following illustration.
In Water Flushing - Optional
This flushing kit is designed to work with the
Rotax 1503 250, 200 and 150 HP CAT en-
gines. Use the on-board flush kit to flush the
exhaust system.
For the installation procedure refer to the in-
struction sheet provided with the kit.
Engine Internal Lubrication
IMPORTANT: Both engines must be internal-
ly lubricated for the storage period.
1) Open the engine compartment lid.
2) Remove storage tray.
3) Remove dipstick.
4) Remove engine cover.
5) Reinstall dipstick.
6) Expel water from the exhaust system and
intercooler as follows:
7) Remove ignition coils. Refer to MAINTE-
NANCE PROCEDURE.
8) Remove spark plugs.
IMPORTANT: After loosening the spark
plugs, a coil may be used to remove the spark
1. Flushing connector –
location may differ
lmo2008-001-054_a
TYPICAL lmo2008-001-053_a
1. Flushing connector
adapter (P/N 460711)
2. Hose 13 mm (1/2 in.)
3. Air hose male adapter
NOTICE
Failure to drain the exhaust system may
cause severe damage to intercooler and
exhaust manifold.
1. Remote flush kit P/N
461478
J0152
NOTICE
Ensure there is no dirt in coil holes
before removing the spark plugs. Other-
wise, dirt would fall into cylinder and will
damage the internal components.
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