GAS GAS EC250 2012, Owner'S Manual

Page: 65 / 81

Owner’s manual
-65-
Carburetor setting
SYMPTOMS OF IMPROPER SETTINGS
If your bike has one of the following symptoms the changes must be adjusted.
Before a tt emp ti ng any change make sure everything else is working properly.
Check the condi ti on of the spark plug, make sure the igni ti on ti ming is correct,
clean the air fi lter, decarbonize the exhaust pipe.
If your bike has worked well up to this ti me it is possible that the problem is
elsewhere and therefore changing the carbure ti on would be a waste of ti me.
• Set the carburetor un ti l the engine responds sa ti sfactorily with the thro tt le
opening.
• If mixture is too lean, the engine tends to overheat. On the other hand, if
too rich, the spark plug easily gets wet causing failure. The proper mixture
varies according to atmospheric condi ti ons (pressure and temperature).
This condi ti ons must be taken into considera ti on when adjus ti ng the car-
buretor.
NOTE: Make sure that the carburetor components that regulate the fl ow of fuel
and the screws that regulates the air mixture, are ti ght.