109
SYMPTOM:
Engine misfires.
POSSIBLE CAUSES
WHAT TO DO
1. DESS has not read tether cord.
Engine can not exceed 3000 RPM.
DESS pilot lamp blinks once every 3
seconds. Properly install tether cord.
2. DESS is activated.
Engine can not exceed 3000 RPM.
DESS pilot lamp blinks rapidly. Install
appropriate tether cord.
3. Fouled/defective/
worn spark plugs.
Clean/verify spark plug and heat
range. Replace as required.
4. Too much oil supplied to engine.
Improper oil pump adjustment, refer
to an authorized dealer.
5. Water in fuel.
Drain fuel system and refill with fresh
fuel.
SYMPTOM:
Snowmobile cannot reach full speed.
POSSIBLE CAUSE
WHAT TO DO
1. DESS has not read tether cord.
Engine can not exceed 3000 RPM.
DESS pilot lamp blinks once every 3
seconds. Properly install tether cord.
2. DESS is activated.
Engine can not exceed 3000 RPM.
DESS pilot lamp blinks rapidly. Install
appropriate tether cord.
3. Drive belt.
Check item 6 of “Engine lacks
acceleration or power”.
4. Incorrect track adjustment.
See maintenance section and/or
dealer for proper alignment and
tension adjustments.
5. Pulleys misaligned.
Contact an authorized dealer.
6. Engine.
See items 3 to 8 of “Engine
lacks acceleration or power”.
Mmo2000-003a.book Page 109 Thursday, May 6, 1999 9:48 AM
