153
SYMPTOM:
Engine lacks acceleration or power.
POSSIBLE CAUSES
WHAT TO DO
1. DESS did not read tether cord cap
code. DESS pilot lamp blinks once
every 1.5 seconds.
Engine can not exceed 3000 RPM.
Properly install.
2. DESS has read a different code then
the one programmed. DESS pilot lamp
blinks rapidly (3 times per second).
Engine can not exceed 3000 RPM.
Install a tether cord cap (key) for which
this snowmobile was programmed.
3. Fouled or defective spark plug.
Check item 5 of ENGINE TURNS OVER
BUT FAILS TO START.
4. Lack of fuel to engine.
Check item 4 of ENGINE TURNS OVER
BUT FAILS TO START.
5. Faulty engine management system
(EMS).
Contact an authorized SKI-DOO dealer.
6. Drive belt worn too thin.
If the drive belt has lost more than 3 mm
(1/8 in) of its original width, it will affect
vehicle performance. Replace drive belt.
7. Drive and driven pulleys require
servicing.
Contact an authorized SKI-DOO dealer.
8. Engine is overheating.
On liquid cooled engines, check coolant
level, pressure cap, thermostat and for
air locks in cooling system. If overheat-
ing persists, contact an authorized SKI-
DOO dealer.
mmo2005-001b_3.fm Page 153 Friday, November 21, 2003 12:28 PM
