Honda NSA700A 2009 Owner's Manual page 206

SYMPTOM: Engine starts, but runs poorly (cont'd).
POSSIBLE CAUSE
sooty exhaust (rich fuel
mixture)
detonates or pings under
load
afterfires (backfires)
pre-ignition (runs on after
ignition switched OFF)
If Your Engine Quits or Won't Start
See your Honda dealer.
If applicable, switch to the recommended octane
gasoline (page 122
gasoline. If the problem persists, see your Honda
dealer.
May damage catalytic converter.
See your Honda dealer.
May damage catalytic converter.
See your Honda dealer.
Taking Care of the Unexpected
WHAT TO DO
) or change your brand of
199