Ski-Doo REV series 2007 Operator's Manual page 164

ENGINE LACKS ACCELERATION OR POWER.
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. 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.
8. Engine is overheating.
–
On liquid cooled engines, check coolant level, pressure cap,
thermostat and for air locks in cooling system.
–
On fan cooled engines, check fan belt and its tension; clean
cooling fins of engine; if overheating persists, contact an au-
thorized SKI-DOO dealer.
9. Engine cannot reach full RPM and EMS pilot lamp blinks.
–
Engine is under a protection mode, contact an authorized
SKI-DOO dealer.
ENGINE BACKFIRES.
1. DESS did not read tether cord cap code. DESS/RER 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 for which this snowmobile was pro-
grammed.
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