Troubleshooting - SGS GPS520 Owner's Manual

OPEN THE CHOKE
Once the machine is running, move the choke to the "Run"
position (open)/ Squeeze the throttle to rev the strimmer
and then let your machine idle for a 30- 40 seconds. Your
strimmer should now be ready to use.
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TROUBLESHOOTING

If your strimmer hasn't started using the standard start-
ing procedure, there's a a couple of things you can quickly
check and try.
Checking the Fuel Mix
The most common problem with a strimmer not starting is
that there's a problem with the fuel mix. Double check that
you've used 40 parts fresh unleaded petrol to 1 part 2-stroke
oil (40:1). Check the petrol you've used isn't stale.
Adjusting the Carburetor
Your strimmer needs a balanced combination of air and fuel
reaching the carburetor. This balance needs to be consistent
at all times otherwise your chainsaw will bog down when try-
ing to start, and then die. If you hear the engine bog when
you pull the trigger, the carburetor needs adjusting via the
carb adjustment screw.
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