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Trouble recovery
69
Engine runs irregu-
larly or stalls
Fuel Empty Refill as soon as pos-
sible
32
Stale or contaminat-
ed
Have serviced by
Yamaha dealer
—
Too much oil in fuel
mixing ratio
Correct fuel-to-oil ra-
tio to 50:1
31
Choke Knob is left pulled Push fully in 25
Fuel filter Clogged or water
pooled
Have serviced by
Yamaha dealer
64
Fuel tank Water or dirt present Have serviced by
Yamaha dealer
—
Spark plug Fouled or defective Replace 64
Incorrect heat range Replace 64
Gap incorrect Replace 64
Spark plug
cap
Loose Connect properly 64
Cracked, torn or dam-
aged
Have serviced by
Yamaha dealer
—
Electrical wir-
ing
Loose electrical con-
nections
Have serviced by
Yamaha dealer
—
Carburetor Incorrect idle adjust-
ment
Have serviced by
Yamaha dealer
—
Clogged Have serviced by
Yamaha dealer
66
Watercraft slow or
loses power
Cavitation Jet intake clogged Clean 70
Impeller damaged or
worn
Have serviced by
Yamaha dealer
70
Engine over-
heated
Jet intake clogged Clean
70
Fuel filter Clogged Have serviced by
Yamaha dealer
64
Spark plug Fouled or defective Replace 64
Incorrect heat range Replace 64
Gap incorrect Replace 64
Spark plug
caps
Loose Connect properly
64
Fuel Stale or contaminat-
ed
Have serviced by
Yamaha dealer
—
TROUBLE POSSIBLE CAUSE REMEDY PAGE
UF2F12E0.book Page 69 Tuesday, July 14, 2009 3:07 PM