19
VIII-Troubleshooting
Problem
Causes
Remedy
WARNING
-
Before attempting to make any inspections, repairs or adjustments, stop the engine, wait
for all moving parts to stop moving and carefully disconnect the engine spark plug wire. If tipping or turning
the snow blower is required for any inspection or repair, first wait until the engine is cool to the touch and
then drain the engine of all fuel and oil into suitable containers and store or dispose of in a proper manner.
Engine Systems
-
Note: For all engine problems, see the Engine Operator's manual for additional
troubleshooting information and engine manufacturer contact information.
Engine Fails to Start
(Engine cranks over)
Engine ignition switch in
OFF position
Position engine ignition switch to ON
Spark plug wire
disconnected
Connect wire to spark plug
Faulty spark plug
Clean, adjust gap, or replace spark plug , see Engine
Operator's manual
Engine flooded with fuel
Discontinue choke or primer use, clean or replace
spark plug.
Choke not in START
position
Move choke to START position, after engine starts
slowly move to RUN position as engine speed and
operation stabilizes at the set rpm. If engine still does
not start move to half choke and crank engine.
Engine not primed with
fuel
Prime engine, see Engine Operator's manual
Fuel incorrect, old or stale,
will not ignite
Empty and clean fuel tank & carburetor, refill with
fresh, clean gasoline. (Note: Fuel may become stale
after 30 days in some cases)
Blocked or clogged fuel
system or line
Clean fuel system or line
Fuel shut-off valve in OFF
position
Turn fuel shut-off valve to ON position
CHOKE in ON or partial
ON position
Move CHOKE lever to RUN
Engine runs erratic,
stalls or seems low
on power
Fuel incorrect, old or stale
Empty and clean fuel tank & carburetor, refill with
fresh, clean gasoline. (Note: Fuel may become stale
after 30 days in some cases)
Blocked or clogged fuel
system or line
Clean fuel system or line
Carburetor is in need of
cleaning
Clean fuel system and carburetor
Spark plug wire loose
Connect and tighten spark plug wire
Faulty spark plug
Clean, adjust gap, or replace spark plug , see Engine
Operator's manual
Engine oil over filled
Drain oil to proper level. Oil should not be above
the top 2 threads of LOWER fill plug.
Engine oil level low or
empty
Add oil
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