
Engine Will Not Start
POSSIBLE CAUSES
•
Lanyard stop switch not in RUN position.
•
Incorrect starting procedure. Refer to
Operation
section.
•
Old or contaminated gasoline.
•
Engine flooded. Refer to
Operation
section.
•
Fuel is not reaching the engine.
a. Fuel tank is empty.
b. Fuel tank vent not open or restricted.
c. Fuel line is disconnected or kinked.
d. Primer bulb not squeezed.
e. Primer bulb check valve is faulty.
f. Fuel filter is obstructed. Refer to
Maintenance
section.
g. Fuel pump failure.
h. Fuel tank filter obstructed.
•
Ignition system component failure.
•
Wiring or electrical connection faulty.
•
Spark plugs fouled or defective. Refer to
Maintenance
section.
Engine Runs Erratically
POSSIBLE CAUSES
•
Guardian System activated. Refer to
Features and Controls—Warning
System
‑
Manually Starting Models
.
•
Spark plugs fouled or defective. Refer to
Maintenance
section.
•
Incorrect setup and adjustments.
•
Fuel is being restricted to the engine.
a. Engine fuel filter is obstructed. Refer to
Maintenance
section.
b. Fuel tank filter obstructed.
c. Stuck anti‑siphon valve located on permanently built‑in type fuel tanks.
d. Fuel line is kinked or pinched.
•
Fuel pump failure.
•
Ignition system component failure.
Performance Loss
POSSIBLE CAUSES
•
Engine Guardian System activated. Refer to
Features and Controls—
Warning System
‑
Manually Starting Models
.
•
Throttle not fully open.
TROUBLESHOOTING
78
eng
Содержание 40 FourStroke Tiller Handle
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