Ski-Doo Skandic Series, Operator'S Manual

Page: 70 / 123

ENGINE CRANKS BUT FAILS TO START (cont’d)
5. Spark plug/ignition (no spark).
–
Remove spark plug(s), then reconnect to spark cap. Check that engine cut-
out switch is at the ON position and the tether cut-out cord cap is snapped
over the receptacle. Start engine with spark plug(s) grounded to engine
away from spark plug hole. If no spark appears, replace spark plug. If trou-
ble persists, contact an authorized SKI-DOO dealer.
6. Engine compression.
–
As the engine is pulled over with the rewind starter, “cycles” of resistance
should be felt as piston goes past top dead center (each piston on multi-
cylinder engines). If no pulsating resistance is felt, it suggests a major loss
of compression. Contact an authorized SKI-DOO dealer.
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 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
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 programmed.
68
______________________