Honda SPORTRAX 400X, Owner'S Manual

Page: 182 / 248

SYMPTOM:
POSSIBLE CAUSE
idles roughly, too
fast, stalls
WHAT TO DO
poor engine
performance at
altitudes above
3,000 feet.
Check engine idle adjustment
(page
). If the problem persists,
see your Honda dealer.
Ask your Honda dealer to modify the
carburetion with a high altitude jet.
Refer to
page .
runs erratically,
misfires See your Honda dealer.
See your Honda dealer.
See your Honda dealer.
If applicable, switch to the
recommended octane gasoline
(page
) or change your brand of
gasoline. If the problem persists, see
your Honda dealer.
detonates or pings
under load
afterfires (backfires) See your Honda dealer.
blubbers
(rich fuel mixture)
sooty exhaust
(rich fuel mixture)
pre-ignition (runs on
after
ignition switched OFF) See your Honda dealer.
112
193
89
Engine starts, but runs poorly.
High Altitude Car bur etor
Adjustment,
174
If Your Engine Quits or Won’t Start
Taking Care of the Unexpected
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