Honda TRX420TE Owner's Manual page 192

If Your Engine Quits or Won't Start
SYMPTOM:
POSSIBLE CAUSE
high coolant
temperature
runs erratically,
misfires
blubbers (rich fuel
mixture)
sooty exhaust (rich
fuel mixture)
detonates or pings
under load
afterfires (backfires)
pre-ignition (runs on
after ignition
switched OFF)
Taking Care of the Unexpected
184
Engine starts, but runs poorly.
Check the high coolant temperature
indicator. Refer to
Coolant T emperature Indicator
Lights,
See your Honda dealer.
See your Honda dealer.
See your Honda dealer.
If applicable, switch to the
recommended octane petrol (page
102
If the problem persists, see your
Honda dealer.
See your Honda dealer.
See your Honda dealer.
WHAT TO DO
If the High
page 191 .
) or change your brand of petrol.