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26
Troubleshooting
Problem
Possible Cause
Possible Solution
Engine runs
poorly
Engine
Overheats
Poor trimming
performance
1
2
3
4
5
6
7
8
9
10
Connect spark plug.
Prime engine.
Inspect or replace spark plug.
Add fuel.
Clean carburettor or fuel line.
For carburettor cleaning, take the
unit to an authorised service centre.
Wait several minutes before starting.
Move throttle lever to correct position.
Drain oil fuel and add fresh petrol.
Inspect lever and wire. Replace if
damaged or defective.
11
Clean or replace air filter.
1
2
3
4
5
6
7
8
9
10
11
Spark plug disconnected.
Engine not primed.
Defective or incorrectly gapped spark
plug.
Fuel tank empty or low.
Dirty carburettor or fuel line.
Carburettor dirty.
Engine flooded.
Throttle control lever incorrect
position.
Stale petrol.
Defective throttle control lever or wire.
Dirty air filter.
1
2
3
4
Bad spark plug.
Dirty air filter.
Carburettor out of adjustment.
Stale petrol.
1
2
3
4
Replace spark plug.
Replace air filter.
Adjust carburettor. Take the unit to an
authorised service centre.
Drain old petrol and replace with fresh
fuel.
1
2
3
Engine cooling system clogged.
Carburettor out of adjustment.
Oil level is low.
1
2
3
Clean debris system, engine screen
and cooling fins.
Adjust carburettor. Take the unit to an
authorised service centre.
Add oil.
1
Trimmer line length is too short.
1
Replace the line.
1
2
3
4
Set screws for trimmer head is lose.
Trimmer line lengths are substantially
different.
Loose nuts or bolts.
Broken trimmer head.
1
2
3
4
Tighten set screws.
Adjust trimmer line to approximately
equal lengths.
Check all bolts and nuts, including
engine bolts.
Replace broken part.
Trimmer
vibrates
Engine does
not start
