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Trouble recovery
70
Engine runs irregu-
larly or stalls
Fuel Empty Refill as soon as pos-
sible
33
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
32
Choke Knob is left pulled Push fully in 25
Fuel filter Clogged or water
pooled
Have serviced by
Yamaha dealer
66
Fuel tank Water or dirt present Have serviced by
Yamaha dealer
—
Spark plug Fouled or defective Replace 65
Incorrect heat range Replace 65
Gap incorrect Replace 65
Spark plug
cap
Not connected or
loose
Connect properly
65
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
67
Watercraft slow or
loses power
Cavitation Jet intake clogged Clean 71
Impeller damaged or
worn
Have serviced by
Yamaha dealer
71
Engine over-
heated
Jet intake clogged Clean
71
Fuel filter Clogged Have serviced by
Yamaha dealer
66
Spark plug Fouled or defective Replace 65
Incorrect heat range Replace 65
Gap incorrect Replace 65
Spark plug
caps
Not connected or
loose
Connect properly
65
Fuel Stale or contaminat-
ed
Have serviced by
Yamaha dealer
—
TROUBLE POSSIBLE CAUSE REMEDY PAGE
UF2F13E0.book Page 70 Thursday, June 17, 2010 1:41 PM
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