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Taking Care of the Unexpected
180
If Your Engine Quits or Won’t
Start
SYMPTOM: Engine starts, but runs poorly.
POSSIBLE CAUSE WHAT TO DO
idles roughly, too fast,
stalls
Check engine idle adjustment
(page 116). If the problem
persists, see your dealer.
improperly throttle
freeplay
Check the throttle
freeplay (page 110).
poor engine
performance at
altitudes above 4,500
feet (1,500 m).
Ask your dealer to modify the
carburetion with a
high
altitude jet. Refer to High
Altitude Carburetor
Adjustment, page 202.
high coolant
temperature
Check the high coolant
temperature indicator. Refer
to If the High Coolant
Temperature Indicator
Lights, page 185.
runs erratically, misfires See your dealer.
blubbers (rich fuel
mixture)
See your dealer.
sooty exhaust (rich fuel
mixture)
See your dealer.
detonates or pings
under load
If applicable, switch to the
recommended octane
gasoline (page 85) or change
your brand of gasoline. If the
problem persists, see your
dealer.
afterfires (backfires) See your dealer.
pre-ignition (runs on
after ignition switched
OFF)
See your dealer.
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