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TROUBLESHOOTING GUIDELINES (550F)
ENGINE IS CRANKED BUT FAILS TO START
1. Engine stop switch or ignition switch (key) in OFF position or tether cord
cap away from post.
– Place engine stop switch and ignition switch in the ON position and install
tether cord cap on post.
2. Mixture not rich enough to start cold engine.
– Check fuel tank level.
– Make sure to use choke properly, refer to CHOKE APPLICATION in BASIC
PROCEDURES.
3. Flooded engine (spark plug wet when removed).
– Do not choke. Remove wet spark plug, place engine stop switch in OFF po-
sition and crank engine several times. Install clean dry spark plugs.
– Start engine following usual starting procedure. If engine continues to flood,
see an authorized Ski-Doo dealer.
4. No fuel to the engine (spark plug dry when removed).
– Check fuel tank level; check condition of fuel and impulse lines and their con-
nections. Possible fuel pump or carburetor failure, contact an authorized Ski-
Doo dealer.
5. Spark plug/ignition (no spark).
– Install new spark plugs crank engine. If engine fails to start, contact an autho-
rized Ski-Doo dealer.
6. Engine compression.
– As the engine is pulled over with the rewind starter, “cycles” of resis-
tance 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 POWER
1. Fouled or defective spark plug.
– See item 5 of ENGINE IS CRANKED BUT FAILS TO START.
2. Lack of fuel to engine.
– See item 4 of ENGINE IS CRANKED BUT FAILS TO START.
3. Carburetor adjustments.
– Contact an authorized Ski-Doo dealer.
4. Drive belt worn too thin.
– If the drive belt has lost more than 3 mm (1/8 in) of its original width, it will af-
fect vehicle performance.
– Replace drive belt.
5. Incorrect track adjustment.
– See MAINTENANCE PROCEDURES and/or an authorized Ski-Doo dealer for
proper alignment and tension adjustments.
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Содержание Ski-doo Tundra Series
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