So I have a 94 CBR600F2 and its been a great bike up until now. it has 20k on it. but heres the problem. it started to get harder and harder to start through the winter as it got colder, sometimes it would take 5 mins of cranking before it would hit, and now that it's warm it wont start at all.

its turning over fine, it just doesnt fire at all. it is sparking, and its getting gas.

i took the air filter off to see if it was clogged and that wasnt it.

i cleaned the carbs out good and changed the spark plugs out and still nothing.

if anyone has any tips through em out there..

thanks,
brian