If it is completly stock then you shouldn't be fouling plugs...Stock they are jetted almost perfect.
Look to see if you have worn out reeds.
Also check your kill switch is in good condition
Also check for improper float height it should be 6.5mm
If all this checks out then look for a worn needle valve
Look to see if you have worn out reeds.
Also check your kill switch is in good condition
Also check for improper float height it should be 6.5mm
If all this checks out then look for a worn needle valve
