Ski-Doo Summit - Snowmobile Operation Issues

145
TROUBLESHOOTING
SYMPTOM: Engine turns over but fails to start.
POSSIBLE CAUSES WHAT TO DO
1. Engine cut-out switch in the OFF
position or cap away from switch
post.
Place engine cut-out switch in the ON
position and install cap on switch
post.
2. Mixture not rich enough to start
cold engine.
Check fuel tank level and check starting
procedure, particularly use of the choke.
3. Flooded engine
(spark plug wet when removed).
Do not choke. Remove wet spark plug
and crank engine several times. Install
clean dry properly gapped spark plug.
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 fuel filter;
replace if clogged; check condition of
fuel and impulse lines and their con-
nections. If 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 switch cap is
snapped over the receptacle. Start en-
gine with spark plug(s) grounded to
engine away from spark plug hole. If
no spark appears, replace spark plug
with new ones properly gapped. 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 center (each piston). If no pulsat-
ing resistance is felt, it suggests a ma-
jor loss of compression. Contact an
authorized SKI-DOO dealer.
Mmo2003-003a.book Page 145 Tuesday, March 19, 2002 2:22 PM