2-17
E
EJU00366
Engine overheat warning
system
The model has an overheat warning
device. If the engine starts to overheat, the
warning light, indicator and “W.TEMP” on
the meter begin to blink and the buzzer
sounds intermittently. If this happens,
reduce the engine speed and return to
beach at low speed. If there is no water dis-
charge at the cooling water pilot outlet while
the engine is running, check the jet intake
and impeller for clogging.
WARNING
Before attempting to remove weeds or
debris from the intake grate or impeller,
shut the engine off and remove the clip
from the engine shut-off switch. Severe
injury or death could result from coming
in contact with the rotating parts of the
jet pump.
CAUTION:
●Return to shore at low speed if the
overheat warning indicator and buzzer
are on, and the display shows
“W.TEMP.” If you ignore these signals,
the engine will stop running and can-
not be restarted until the exhaust sys-
tem cools.
●Have your watercraft inspected and
serviced by a Yamaha dealer if the
engine stopped due to overheating.
5-2
E
Engine runs irregu-
larly or stallsFuel Empty Refill as soon as possi-
ble3-3
Stale or contaminated Have serviced by
Yamaha dealer4-10
Choke Knob pulled Push fully in 2-10
Fuel filter Clogged or water
pooledHave serviced by
Yamaha dealer4-10
Fuel tank Water or dirt present Have serviced by
Yamaha dealer4-10
Spark plug Fouled or defective Replace 4-14
Incorrect heat range Replace 4-14
Gap incorrect Adjust 4-14
Spark plug cap Loose Connect properly 4-14
Cracked, torn, or dam-
agedReplace
—
Electrical wir-
ingLoose connection Tighten or connect
properly—
Carburetor Incorrect idle adjust-
mentAdjust idle
4-21
Clogged Have serviced by
Yamaha dealer—
Warning light or
indicator blinksFuel level Empty Refill as soon as possi-
ble3-3
Engine oil level Empty Refill immediately 3-4
Oil filter clogged Clean 4-11
Engine over-
heatedJet intake clogged Clean 5-4
Water temperature
sensor failedHave serviced by
Yamaha dealer—
Low battery
voltageBattery voltage low Charge 4-20
Battery terminal con-
nected wrongConnect properly
4-20 TROUBLE POSSIBLE CAUSE REMEDY PAGE
