Trouble Shooting Chart - Murray 621450X4NB Instruction Book

TROUBLE SHOOTING CHART
TROUBLE
Difficult starting
CAUSE
Defective spark plug.
Water or dirt in fuel system.
ENGLISH
Engine runs erratic Blocked fuel line, empty gas tank, or stale
gasoline
Engine stalls Unit running on CHOKE.
Engine runs erratic; Water or dirt in fuel system.
Loss of power
Excessive vibration Loose parts: damaged impeller
Unit fails to propel itself
Unit fails to discharge snow
Drive belt loose or damaged.
Auger drive belt loose or damaged.
Auger control cable not adjusted correctly.
Discharge chute clogged.
Foreign object lodged in auger
CORRECTION
Replace spark plug.
Use carburetor bowl drain to flush and refill with
fresh fuel.
Clean fuel line; check fuel supply; add fresh
gasoline
Set choke lever to RUN position.
Use carburetor bowl drain to flush and refill with
fresh fuel.
Stop engine immediately and disconnect spark
plug wire. Tighten all bolts and make all
necessary repairs. If vibration continues, have
the unit serviced by a competent repairman.
Replace drive belt.
Adjust auger drive belt; replace if damaged.
Adjust auger control cable.
Stop engine immediately and disconnect spark
plug wire. Clean discharge chute and inside of
auger housing.
Stop engine immediately and disconnect spark
plug wire. Remove object from auger.
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