57
SPECIAL PROCEDURE
Engine Overheating
CAUTION:
If the monitoring beeper
continuously sounds,
stop engine(s)
immediately
.
Perform the
Jet Pump Water Intake
and Impeller Cleaning procedure
in
this section.
Flush cooling system, refer to POST-
OPERATION CARE.
If engine(s) still overheat, refer to an
authorized dealer for servicing.
Jet Pump Water Intake and
Impeller Cleaning
Weeds, shells or debris can get caught
on the intake grate(s), drive shaft(s)
and/or impeller(s). A clogged water in-
take may cause troubles such as:
1.
Cavitation:
Engine speed is high
but sport boat moves slowly due to
reduced jet thrust;
jet pump compo-
nents may be damaged.
2.
Overheating:
Since the jet pump
operation controls the flow of water
to cool the engine, a clogged intake
will cause the engine to overheat
and damage engine internal compo-
nents.
The clogged area can be cleaned as
follows:
In-water cleaning:
Pull safety lanyard
to stop engine(s). Let the boat stop by
itself then pull the weedless system le-
ver (refer to POST OPERATION CARE).
This will lower the water intake
grate(s). Wait a while to allow weeds
or other debris to escape from grate(s).
Thereafter, fully push wheedless sys-
tem lever and start engine(s). It may be
necessary to repeat the procedure.
CAUTION:
Operating the sport boat
with the water intake grate(s) in low-
er position will cause damage to the
weedless system.
In severe conditions if the above meth-
od does not work, the following can be
performed:
– With engine(s) running, put shift le-
ver in reverse position and vary
throttle(s) quickly several times.
– Retry boat.
Most of the time, debris will escape
from the propulsion system.
Out of water cleaning:
If the system
is still clogged, shut off the engine(s)
by removing the safety lanyard.
Pull the weedless system lever to low-
er the water intake grate(s). From un-
derneath boat, manually clean each wa-
ter intake area. If the system is still
clogged, refer to an authorized dealer
for servicing.
CAUTION:
Avoid sport boat opera-
tion in weeded areas. If unavoidable,
vary sport boat speed. Weeds tend
to entangle more at steady and slow
speeds. Inspect water intake grate(s)
for damage. Refer to an authorized
dealer for repair as necessary.
WARNING
Keep away from intake grate while
engine is on. Items such as long
hair, loose clothing or personal flo-
tation device straps can become
entangled in moving parts result-
ing in severe injury or drowning.
WARNING
Always remove safety lanyard from
switch to prevent accidental engine
starting before cleaning the jet
pump area.
lmo2002_003a.book Page 57 Wednesday, November 14, 2001 2:39 PM
