HYOSUNG GT125 - PARTS CATALOGUE, Owner'S Manual

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To adjust the engine idle speed :
Never adjust “CO adjust screw” of
the carburetor.
If adjust optionally, exert a bad influence
upon output of the engine as the two
carburetor is disharmonious.
CAUTION
1. Start up the engine and let the engine
run until it warms up fully.
2. After engine has warmed up, turn the
throttle stop screw
①
in or out so that
the engine may run at 1,400~1,500
RPM.
Improper adjustment of the idle speed
can be hazardous.
An idle that is too high can cause the
motorcycle to lurch forward when you
shift to first gear. This may cause an
accident. Excessive engine wear may
also result if idle speed is adjusted
improperly or when the engine is not
fully warmed up.
Adjust the idle to the correct speed.
Make sure the engine is fully warm
before adjusting the idle speed.
WARNING
❶
❶