float bowls leaking with fuel pump, help needed

Post by **Spike16** » Fri Feb 05, 2010 9:12 pm

got a problem with my fuel pump, iv rebuild the carbs with new seals on the float bowl but when I connected it all up the and turned it on the fuel pump started pumping started to slow down but then 3 of the 4 float bowls started pissing out fuel, anyone had this problem before?

Post by **hunter** » Fri Feb 05, 2010 10:59 pm

Sounds like worn float needles.

Post by **Spike16** » Fri Feb 05, 2010 11:27 pm

hmm that could be a fair shout actually, I replaced one of them mabe thats the one thats no leaking, I checked them and they none were seized so i assumed they were fine, il order some new ones from rick tomorrow and see if that sorts it

any other idea's people?

Post by **viper_biker** » Sat Feb 06, 2010 12:17 am

Over tightened drain screws that have cracked the bowls?

Post by **Morespeedvicar** » Sat Feb 06, 2010 1:43 am

Check that the pump isnt supplying too much pressure you only need a couple of psi ( upto maybe 5), any more than that and the needle valves wont seal.
Cheers
Ian

Post by **Spike16** » Sat Feb 06, 2010 12:22 pm

I dont thing iv overtightened the drain screws, the fuel seems to be coming out the sides of the bowl cover

the pump is from a zxr400 aparently and I was told it was the correct one for ram air, not 100% sure it was ever tested tho, im gona replace the float needles and see what happens.

no-ones got any in hampshire have they I could buy and pick up today?

float bowls leaking with fuel pump, help needed

float bowls leaking with fuel pump, help needed

Re: float bowls leaking with fuel pump, help needed

Re: float bowls leaking with fuel pump, help needed

Re: float bowls leaking with fuel pump, help needed

Re: float bowls leaking with fuel pump, help needed

Re: float bowls leaking with fuel pump, help needed