ENGINE IS CRANKED BUT FAILS TO START. (cont’d)
4. No fuel to the engine (spark plug dry when removed).
– Check fuel tank level; turn fuel valve on if applicable; check
fuel filter; replace if clogged; check condition of fuel and im-
pulse lines and their connections. A failure of the fuel pump
or carburetor has occurred. Contact an authorized SKI-DOO
dealer.
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
trouble 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 cen-
ter (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 (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.
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