Ski-Doo REV XP 2008 Series, Operator'S Manual

Page: 97 / 155

ENGINE LACKS ACCELERATION OR POWER.
1. DESS did not read tether cord cap (DESS KEY) code. DESS pilot lamp
blinks once every 1.5 seconds. Engine can not exceed 3000 RPM.
– Properly install tether cord cap (DESS key).
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 (DESS key) for which this snowmobile was pro-
grammed.
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. Carburetor adjustments.
– 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.
ENGINE BACKFIRES.
1. DESS did not read tether cord cap (DESS key) code. DESS pilot lamp
blinks once every 1.5 seconds. Engine can not exceed 3000 RPM.
– Properly install tether cord cap (DESS key).
2. DESS has read a different tether cord cap (DESS key) code then the one
programmed. DESS pilot lamp blinks rapidly (3 times per second). En-
gine can not exceed 3000 RPM.
– Install a tether cord cap (DESS key) for which this snowmobile was pro-
grammed.
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 SKI-DOO dealer.
ENGINE MISFIRES.
1. DESS did not read tether cord cap (DESS key) code. DESS pilot lamp
blinks once every 1.5 seconds. Engine can not exceed 3000 RPM.
– Properly install tether cord cap (DESS key).
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