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SPECIAL PROCEDURES
SPECIAL PROCEDURES
JET PUMP WATER INTAKE AND
IMPELLER CLEANING
Water is drawn up by the impeller through
these openings. The grate minimizes entry of
foreign objects into the propulsion system.
Weeds, shells or debris can get caught on the
intake grates, drive shafts and/or impellers. A
clogged water intake may cause troubles
such as:
1. Cavitation: Engine speed is high but boat
moves slowly due to reduced jet thrust; jet
pump components may be damaged.
2. Overheating: Since the jet pump opera-
tion controls the flow of water to cool the
exhaust system, a clogged intake will
cause the engine to overheat and damage
internal engine components.
The clogged area can be cleaned as follows:
In-Water Cleaning
Pull the tether cord from engine cut-off switch
to stop engine(s). Let the boat stop by itself.
Wait a while to allow weeds or other debris to
escape from grate(s). It may be necessary to
repeat the procedure. In severe conditions if
the above method does not work, the follow-
ing can be performed:
1) With engine(s) running, put shifter lever in
reverse position and vary throttle setting
quickly several times.
2) Try accelerating again. Most of the time,
debris will escape from the propulsion sys-
tem. If not, refer to OUT OF WATER
CLEANING.
Out of Water Cleaning
From underneath boat, manually clean water
intakes area. If the system is still clogged, re-
fer to an authorized Boats dealer for servicing.
IN–THE–WATER TOWING
Maximum recommended towing speed is 24
km/h (15MPH).
IMPORTANT: On models with twin engines,
this procedure must be followed for both en-
gines.
The cooling water supply hose to the inter-
cooler (if applicable) and to the exhaust sys-
tem MUST be pinched closed.
A Hose Pincher Tool, P/N 460717, is avail-
able for this purpose.
TYPICAL
1. Intake grate
lmo2008-006-002
WARNING
Keep away from intake grates while
engines are running. Items such as long
hair, loose clothing or personal flotation
device straps can become entangled in
moving parts resulting in severe injury or
drowning.
NOTICE
Avoid operation in weeded areas. If
unavoidable, vary speed. Weeds tend to
entangle more at steady and slow
speeds. Inspect water intake grates for
damage. Refer to an authorized Rotax
Jet Propulsion dealer for repair as nec-
essary.
WARNING
Keep away from intake grates while
engines are running. Items such as long
hair, loose clothing or personal flotation
device straps can become entangled in
moving parts resulting in severe injury or
drowning.
NOTICE
Special precautions MUST be taken
when towing a BRP Rotax powered boat
in the water to prevent the exhaust sys-
tem and engine from filling with water.
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