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pissing petrol from carbs!
Posted: Thu Apr 24, 2014 12:44 pm
by Bleb
I've just had my carbs stripped & sonically cleaned as it was lumpy as hell below 5k & wouldn't run through town without stalling.Got the bike started, but now fuel is pissing out of the 2 (?) overflow tubes. I've just ordered a seal kit, but if anybody has any advice I could use it!
Cheers- Bob :smt013
Re: pissing petrol from carbs!
Posted: Thu Apr 24, 2014 12:56 pm
by banner001
you either have a leak around the o-ring that allows the 4 individual carb filters to seal, or you have damage/blockage of the float needle.
if you drain each carb float bowl into a small measuring jug, or spare container, you might be able to see which ones are overflowing.
either way, its a carb stripdown to fix the problem.
i usually smear a bit of gasket sealant on the o-rings of old carb filters to ensure a good seal, that way i know that it can only be overflowing past the float needle...and thats easy to visually check for damage/wear.
Re: pissing petrol from carbs!
Posted: Fri Apr 25, 2014 8:39 am
by Bleb
Ta, I'll wait for the seal kit & see how it goes from there...
Re: pissing petrol from carbs!
Posted: Tue May 13, 2014 8:43 am
by Bleb
Fitted the kit & it's sorted!

The seals were all original 1991 & perished. The pilot jet seals were still in the holes, stuck to the washers... Now need a brake master cylinder seal kit so that she stops at Le Mans in August!

Re: pissing petrol from carbs!
Posted: Tue May 13, 2014 10:53 am
by banner001
nice one
