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SYMPTOM:
Engine backfire
Possible causes
What to do
1. D.E.S.S. has not read tether cord.
Engine can not exceed 2500 RPM.
D.E.S.S. pilot lamp blinks once every 3
seconds, beeper sounds every 3
seconds as well. Properly install
tether cord.
2. D.E.S.S. is activated.
Engine can not exceed 2500 RPM.
D.E.S.S. pilot lamp blinks rapidly and
a continuous beep is heard. Install
appropriate tether cord.
3. Faulty spark plug
(carbon accumulation).
See item 5 of “Engine turns over but
fails to start”.
4. Engine is running too hot.
See item 6 of “Engine lacks
acceleration or power”.
5. Ignition timing is incorrect or there
is an ignition system failure.
Contact an authorized dealer.
mmo9705b.fm5 Page 40 Tuesday, May 20, 1997 3:15 PM