Yamaha 2011 WaveRunner SuperJet Owner's/Operator's Manual page 69

TROUBLE
Engine runs irregu-
larly or stalls
Watercraft slow or
loses power
POSSIBLE CAUSE
Fuel Empty
Stale or contaminat-
ed
Too much oil in fuel
mixing ratio
Choke Knob is left pulled
Fuel filter Clogged or water
pooled
Fuel tank Water or dirt present
Spark plug Fouled or defective
Incorrect heat range
Gap incorrect
Spark plug Not connected or
cap loose
Cracked, torn or dam-
aged
Electrical wir- Loose electrical con-
ing nections
Carburetor Incorrect idle adjust-
ment
Clogged
Cavitation Jet intake clogged
Impeller damaged or
worn
Engine over- Jet intake clogged
heated
Fuel filter Clogged
Spark plug Fouled or defective
Incorrect heat range
Gap incorrect
Spark plug Not connected or
caps loose
Fuel Stale or contaminat-
ed
Trouble recovery
REMEDY
Refill as soon as pos-
sible
Have serviced by
Yamaha dealer
Correct fuel-to-oil ra-
tio to 50:1
Push fully in
Have serviced by
Yamaha dealer
Have serviced by
Yamaha dealer
Replace
Replace
Replace
Connect properly
Have serviced by
Yamaha dealer
Have serviced by
Yamaha dealer
Have serviced by
Yamaha dealer
Have serviced by
Yamaha dealer
Clean
Have serviced by
Yamaha dealer
Clean
Have serviced by
Yamaha dealer
Replace
Replace
Replace
Connect properly
Have serviced by
Yamaha dealer
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