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Symptom
Unit runs but delivers little
or no water
Unit will not start
Unit starts but runs and
performs poorly
TROUBLE SHOOTING
Possible Cause
Leak in suction hose or piping
Clogged suction strainer
Water level below pump intake
Pump not primed
Water level more than
maximum lift
Engine speed to low
No fuel
Fuel tap in "off" position
Low quality or deteriorated, old
fuel/oil mix.
Dirty muffler, exhaust
Choke adjusted incorrectly
Air-filter clogged
Fuel evaporation in carburet-
tor (vapour lock) due to high
temperatures
Spark plug is wet or the spark
plug electrode is dirty, placed
inadequately or is faulty
Air-filter clogged
Choke is still engaged
Engine or carburettor difficulties
18
Corrective Action
Tighten suction hoses and use
thread sealer.
Clear debris from suction strainer
Lower suction hose into water
Fill pump with water before trying
to prime
Move pump closer to water level
and increase discharge line length
if necessary
Increase throttle
Fill engine fuel tank. Refer to engine
operating instructions
Turn fuel valve to "on" position
Use only fresh 91 octane unleaded
fuel/oil mix.
Check and clean
Move choke lever to "CLOSED" unless
engine is warm. Refer to engine
operating instructions
Check, clean or replace filter as
required
Wait a 10 to 20 minutes then retry the
starting procedure
Refer to the maintenance section on
how to remove and inspect
Check, clean or replace filter as
required
Return the choke to the closed position
Contact YARDWORKS customer service
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