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Trouble recovery
91
Engine runs irregu-
larly or stalls
Fuel
Fuel tank empty
Refill as soon as pos-
sible
Stale or contaminat-
ed
Have serviced by
Yamaha dealer
—
Fuel tank
Water or dirt present
Have serviced by
Yamaha dealer
—
Spark plug
Fouled or defective
Have serviced by
Yamaha dealer
—
Incorrect heat range
Have serviced by
Yamaha dealer
—
Gap incorrect
Have serviced by
Yamaha dealer
—
Electrical wir-
ing
Loose connection
Have serviced by
Yamaha dealer
—
Fuel injec-
tion system
Faulty or clogged in-
jectors
Have serviced by
Yamaha dealer
—
Warning light or in-
dicator blinks or
comes on
Fuel level
warning
Fuel tank empty
Refill as soon as pos-
sible
Oil pressure
warning
Oil pressure dropped
Have serviced by
Yamaha dealer
Engine over-
heat warning
Jet intake clogged
Clean
Check en-
gine warning
Faulty sensors
Have serviced by
Yamaha dealer
TROUBLE
POSSIBLE CAUSE
REMEDY
PAGE
UF2W76E0.book Page 91 Wednesday, June 19, 2019 10:58 AM