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13. TROUBLESHOOTING
Problem
Engine does not start
Motor speed drops off
Poor scarification results.
Grass catcher never fills
Unusual noises
Vibration
Possible causes
Throttle choke is not in the correct
position
Fuel tank is empty.
Air cleaner element is dirty.
Spark plug loose.
Spark plug wire loose or
disconnected from plug.
Spark plug gap is incorrect.
Spark plug is defective.
Carburetor is flooded with fuel.
Faulty ignition module.
Depth of cut too great
Grass too high
Ejector channel blocked
Air filter clogged
Depth of cut too small
Worn cutting blades
Grass catcher is full/clogged
Ejector channel blocked
Bolts, nuts or other mounting
parts slack.
Cutting assembly is loose.
Cutting assembly is unbalanced.
19 - EN
Remedial action
Move throttle choke to correct
position.
Fill tank with fuel: refer to ENGINE
OWNERS MANUAL.
Clean air cleaner element: refer to
ENGINE OWNERS MANUAL.
Tighten spark plug.
Install spark plug wire on spark
plug.
Set correct gap between
electrodes.
Install new, correctly gapped plug:
refer to ENGINE OWNERS
MANUAL.
Remove air cleaner element and
pull starter rope continuously until
carburetor clears itself and install
air cleaner element.
Contact the service agent.
Set to smaller depth of cut
Mow the lawn before scarifying
Pull out spark plug connector,
remove blockage.
Clean air filter: refer to ENGINE
OWNERS MANUAL.
Set to great depth of cut.
Having cutting blades replaced in
a specialist work ship
Stop
scarifier.
Unload
catcher or clean it
Pull out spark plug connector,
clean ejection channel
Tighten parts.
Tighten blade.
Balance blade.
grass
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