107
TROUBLESHOOTING
SYMPTOM
:
Engine turns over but fails to start.
POSSIBLE CAUSES
WHAT TO DO
1. Emergency cut-out switch or tether
switch is in the OFF position.
Place all switches in the ON position.
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 spark plug. Start engine
following usual starting procedure. If
engine continues to flood, see an
authorized 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
connections. If a failure of the fuel
pump or carburetor has occurred,
contact an authorized dealer.
5. Spark plug/ignition (no spark).
Remove spark plug(s) then reconnect
to spark cap. Check that emergency
cut-out switch is at the ON position
and the tether cut-out switch 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 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
pulsating resistance is felt, it
suggests a major loss of compression.
Contact an authorized dealer.
Mmo2000-003a.book Page 107 Thursday, May 6, 1999 9:48 AM
