Adjusting The Carburetor - SGS GPS520 Owner's Manual

ADJUSTING THE CARBURETOR

Locate the adjustment screw on your machine
Wind the carb screw all the way in (clockwise).
Wind the carb screw 1.5 - 2 turns anti-clockwise.
Restart the starting procedure
This is the most common set up for the carburetor, however
you can fine tune it depending on how your strimmer is run-
ning:
Erratic idling behaviour or poor acceleration - the engine
needs more fuel so turn the adjustment screw anticlockwise
until the engine runs and accelerates smoothly.
Excessive exhaust smoke when idling - the engine is run-
ning too rich, so you need more air reaching the carburetor.
Turn the adjustment screw clockwise until the engine speed
drops. Now check that the engine still accelerates smoothly
when you apply the throttle.
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CHECK FOR ENGINE FLOODING
There's a chance that if you've over used the pull start
mechanism, you may have flooded the two-stroke engine.
This is very simple to check and fix.
Open up the casing and remove the black lead that covers
the plug.
If the spark plug is damp with fuel then the engine is flood-
ed. Remove the plug, and allow the excess fuel to evapo-
rate.
Replace the plug and follow the usual starting procedure.
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