hello i have a cbr600f4i 2001 i was getting ready for summer and i cleaned the air filter and then put it back i also checked my spark plugs so i took the hole air box of then i put evrything back together then i was going to do an oil change so i went to start it and it ran for a couple seconds and then died and i started to taked thingsapart again to see if i forgot something and i found a crack in a hose from the gas tank to the throttle body so i ordered one but its on back order and 90 bucks so i had a mechanic friend build one from the old one the one he made doeasnt leek and the fi comes on and it primes and turns over and sputters alittle but wont start any help plese thanks

 

Vacum hose is pinched, or fuel return line.

 

if the lines arent pinched, could be old, bad gas and they fouled the plugs. try draining the tank and adding some new fuel and check/ clean up, or replace the plugs again.

 

i did just replace the gasas of todayand the plugs where new at the end of last year before i put the bike a way and that was the same time i put the gas in and i started it over the winter but still wont start it all started when the hose from the throttlebody had a crack and was leeking i also cleaned my air filter i replaced the hose with the same fittings and no leeks and i can here the fi go and it will turn over and there is spark but no go

 

does it crank slow? Maybe a dead battery. If you are getting fuel and spark then you should be getting a running bike. Any diffwerence if you give it gas while cranking? Well hope you get it figured out buddy.

 

no there isnt any difference when i give it gas but i took the plugs out and dried them and then put them back in but didnt screw them in and conected them to blow out any gas if it was flooded then screwed them back in hooked everything up and tried a gain and she started but then stopped and then wouldent start again iam thinking maybe really flooded any other tricks to get it un flooded