i have a 2004 kaw 250...it would run good until it warms up.. about the time i leave neigborhood it will cut off.. I paid someone to clean carb.i don't think they did,an change spark plug...ran fine for two weeks..now it cuts off..but will crank fine..?

INSTA, September 2010

Hi,does the bike start up again straight away or what? what was the condition of the original spark plug when you took it out? was it white or black? possibly duff/wrong grade spark plug or the plug cap is loose on the plug, i don't think it's fuel related.

Chris P.Duck, September 2010