Got a problem!

just had my car tuned and was running nicely however after i got back i noticed a fuel leak from the carbs. I thought it was a faulty fuel line however after much testing i noticed it coming out of the plastic at the top of the metal tube coming out of the carbs. Has anybody had any issues like this? The tube leads into a t-piece which runs the length of the carbs - is this easy to replace?

More likely a stuck float needle valve causing one carb to flood. If all needle valves are seating properly fuel cannot get any higher than the float bowl, other than being sucked up through the jets bu the inlet vacuum.

It seems to be leaking from the plastic bit above the metal pipe - wouldnt that be an internal leak or could it be because of over fueling? wasnt there before the tune however could the internal parts have degraded?



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[Edited on 21/6/10 by joemotion]

Have you changed the fuel pump ? / pressure ?
What pump you using ?
Is it leaking out the pipe in your photo ? thats the fuel in pipe is your pump running all the time ?

[Edited on 21/6/10 by jacko]

same as before zx9 pump

the car started getting air in the carbs when i was driving after the tune and cutting out

had a look around and noticed fuel coming out the feed pipe

gonna ring noble in the morning and see what they think as spent alot on the tune

Is it the black T that is leaking or the silver pipe

the ail round section is just the cast mounting with the threaded connecting rod goes through.
The plastic bit is the fuel inconnector feed, which has small 'O' rings on the end to seal into the carb body, could be just one of these perrished, other question is have the carbs been respaced to fit, or as standard? if respaced using the orignal feed pipe could just be in one carb to far? if you need to replace the 'O' ring will need to take the carbs off and split them to get it out.

[Edited on 21/6/10 by will121]

jacko - the fuel seems to be coming from where the silver pipe goes into the plastic t - - the yellowy bit on the pic has sort of perished and has now come off to show the silver pipe - i assume the seal is formed over the silver pipe by the rubber/plastic bit that has perished? that is all i can think why it is leaking as no fuel is leaking above this area? can you easily replace the T bit of the carbs?

[Edited on 21/6/10 by joemotion]

looking again at the picture is there something on the plastic T piece like glue? wonder if its been previously repaired? or just the hose connector leaking