'84 gpz 750 (non turbo) carbs leaking badly

i've torn apart and compleatly cleaned the carbs on my '84 gpz750 twice (i thought i might have missed something the first time) set the floats and followed ALL the directions in my manual.... they are still flooding out and dumping fuel all over the place. any sugestions are welcome! oh i already thought about throwing lit matches at it, sorry.

to clearify... all the carbs are leaking... before and after i cleaned them out, deff not a single carb issue. once again thanks for any help!!

Sticky, dirty or worn out needle and seats. With the fuel on, try tapping on each of the float bowls with the plastic end of a screw driver. This sometimes vibrates the needles into place. Leaking like this can happen even on clean carbs that have been dry for a while. If the leaking doesn't stop, disassemble the carbs again a look closely at the float needles and seats and check for wear.

what he said.
if that doesnt work run some gas through them on the bench while the bowls are off and see if the needles close when you lift the floats

PLUMMEN wrote:

what he said.
if that doesnt work run some gas through them on the bench while the bowls are off and see if the needles close when you lift the floats

Yeah that too!

kewl folks.... out they come again...lol:S

Would assure floats aren't installed upside down (as possible in some style carbs).

Am thinking the float needle seats aren't separately replaceable in these particular carbs.

Could consider using Brasso on a Q-Tip chucked in drill to polish the seat orifices.

Would inspect tips of float needles under a bright light with magnification to assure the tips aren't worn or damaged. And are hopefully in "as new" condition.

Good Fortune!

i've got them on the bench today (again lol) thanks for the input... we'll see how it goes!

thanks for the help folks!!! got her running yesterday, now i'm just waiting for my new filters to come in and i'll be good to go!!.... it was the float needles on the centre 2 carbs (rust flakes jamming them open) oh and you might ask about the need for new filters... lol i had a misshap when a backfire started a blaze in my solvent covered airbox looked realy kewl for a second then panic set in :ohmy: i got it put out before i lost anything else, hahaha