my 98 cbr 600 wont start. I put fuel in the carb manually and it starts for like 3 seconds until the gas burns off. I have fuel squirting out of the fuel pump when i disconnect the out line. is there a way to test after the pump to see if there is something wrong with the carb? if so, how? thanks in advance...

 

Don't remember for sure, but I think the fuel-filter is after the pump, check it for clogging.

Ern

 

i checked the filter and blew into it and there was very little resistance. the filter is before the pump too and i had checked for flowwing of the pump with the filter attached and gas started to squirt out when voltage was applied..

 

by pass the pump completely

 

i found 4 hoses that go into the carb with swivel tubes. if i blow into them gas squirts into the carbs and will run for like 3 seconds.... then it dies, if i bypass the fuelpump i wont have anything pushing gas into the carbs right? is the fuel pulled out by vacuum? how do i check if i have enough vacuum on a car that doesnt run? is it possible it is old gas in the tubes still even after countless times of trying to turn it over?

 

Has the bike ever ran? Vacuum pulls fuel from carbs, you don't need to have pump on just gravity feed it for now. Check your carb boots, might have vacuum leak

 

i think there is something wrong with the carbs. it was running before, but has been sitting for a year.... anybody know where i can get a rebuild kit?

 

Might just need a good cleaning. Your jets are prolly just clogged up.

 

before you blow a bunch of money on a rebuild kit, id bypass the pump completely and do a direct feed to the carbs.

make sure your batt is 12.5+v.
check your sparkplugs, clean em.

usually its the relay going bad.

 

i tried that and it didnt work.... i took the carbs out and cleaned the jets out. they were really dirty. i put everything back together and it fired right up the jets were my problem and just needed a good cleaning. thanks guys for all your help....