I have set of 26mm Mikuni's and I can't stop them leaking out of the float bowls! I have tried float heights, new float valves everything I can think of but still petrol seeps through the gaskets and runs down the bowls. Any idea's anybody?
Cheers
Dave
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Leaking carbs
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- Hardcore
- Posts: 2051
- Joined: 3rd Apr 2009
- Location: leverington UK
Re: Leaking carbs
float levels wrong or float valves not seating properly.
Re: Leaking carbs
When on the side stand this is normal as the fuel is now high on the left hand side of the carb.
If this is occurring when on the centre stand then you have slightly incorrect float heights/fuel level or float valve slightly leaking.
If they were massively out, or the float valve was leaking badly, you'd have fuel coming out of the bowl overflows too.
Fuel weeping out of the float gasket is a common issue with the card gaskets, I use the Keyster ones, which are made from some sort of rubber based compound.
If this is occurring when on the centre stand then you have slightly incorrect float heights/fuel level or float valve slightly leaking.
If they were massively out, or the float valve was leaking badly, you'd have fuel coming out of the bowl overflows too.
Fuel weeping out of the float gasket is a common issue with the card gaskets, I use the Keyster ones, which are made from some sort of rubber based compound.
http://www.airevalleyclassics.co.uk
10% discount code Z1OCTEN
Keyster rebuild kits & carburettor spares - airscrews, jets, needles, starter plungers & gaskets.
Also petrol/ethanol proof float bowl gaskets. IMD pistons preferred seller.
10% discount code Z1OCTEN
Keyster rebuild kits & carburettor spares - airscrews, jets, needles, starter plungers & gaskets.
Also petrol/ethanol proof float bowl gaskets. IMD pistons preferred seller.
- warren3200gt
- Hardcore
- Posts: 2726
- Joined: 13th Jun 2014
- Location: Dartford Kent
Re: Leaking carbs
I've always used a very LIGHT smear of rtv on carb gaskets. Seems to do the trick.
PUM 488 June 2023
76 Z900A4, 77 Z650B1, 77 KZ650B1, 77 Z1000A1, 82 Z1000J2, ZRX1100R.
76 Z900A4, 77 Z650B1, 77 KZ650B1, 77 Z1000A1, 82 Z1000J2, ZRX1100R.
Re: Leaking carbs
warren3200gt wrote:I've always used a very LIGHT smear of rtv on carb gaskets. Seems to do the trick.
That just made me shudder....
http://www.airevalleyclassics.co.uk
10% discount code Z1OCTEN
Keyster rebuild kits & carburettor spares - airscrews, jets, needles, starter plungers & gaskets.
Also petrol/ethanol proof float bowl gaskets. IMD pistons preferred seller.
10% discount code Z1OCTEN
Keyster rebuild kits & carburettor spares - airscrews, jets, needles, starter plungers & gaskets.
Also petrol/ethanol proof float bowl gaskets. IMD pistons preferred seller.
- warren3200gt
- Hardcore
- Posts: 2726
- Joined: 13th Jun 2014
- Location: Dartford Kent
Re: Leaking carbs
Ultim8pc wrote:warren3200gt wrote:I've always used a very LIGHT smear of rtv on carb gaskets. Seems to do the trick.
That just made me shudder....
Why, whats the down side? Stops the side stand issue. I don't put enough on to squeeze out into the bowl when tightened, just enough to take up any tiny imperfections in the surfaces and it reduces the chances of stripping the threads due to overtightening to get the gasket to seal.
PUM 488 June 2023
76 Z900A4, 77 Z650B1, 77 KZ650B1, 77 Z1000A1, 82 Z1000J2, ZRX1100R.
76 Z900A4, 77 Z650B1, 77 KZ650B1, 77 Z1000A1, 82 Z1000J2, ZRX1100R.
Re: Leaking carbs
warren3200gt wrote:Ultim8pc wrote:warren3200gt wrote:I've always used a very LIGHT smear of rtv on carb gaskets. Seems to do the trick.
That just made me shudder....
Why, whats the down side? Stops the side stand issue. I don't put enough on to squeeze out into the bowl when tightened, just enough to take up any tiny imperfections in the surfaces and it reduces the chances of stripping the threads due to overtightening to get the gasket to seal.
I thought it may have had "sexual" connotations?
And on the 7th day... Zeds were created!
- warren3200gt
- Hardcore
- Posts: 2726
- Joined: 13th Jun 2014
- Location: Dartford Kent
Re: Leaking carbs
Pigford wrote:warren3200gt wrote:Ultim8pc wrote:warren3200gt wrote:I've always used a very LIGHT smear of rtv on carb gaskets. Seems to do the trick.
That just made me shudder....
Why, whats the down side? Stops the side stand issue. I don't put enough on to squeeze out into the bowl when tightened, just enough to take up any tiny imperfections in the surfaces and it reduces the chances of stripping the threads due to overtightening to get the gasket to seal.
I thought it may have had "sexual" connotations?
My mind is obviously a lot purer than the rest of you mucky sods!
PUM 488 June 2023
76 Z900A4, 77 Z650B1, 77 KZ650B1, 77 Z1000A1, 82 Z1000J2, ZRX1100R.
76 Z900A4, 77 Z650B1, 77 KZ650B1, 77 Z1000A1, 82 Z1000J2, ZRX1100R.
Re: Leaking carbs
I've seen too many sets where problems have been caused by application of too much RTV.. It only needs a tiny bit to some off and get lodged somewhere to cause a problem.
So use at your own risk IMHO.
So use at your own risk IMHO.
http://www.airevalleyclassics.co.uk
10% discount code Z1OCTEN
Keyster rebuild kits & carburettor spares - airscrews, jets, needles, starter plungers & gaskets.
Also petrol/ethanol proof float bowl gaskets. IMD pistons preferred seller.
10% discount code Z1OCTEN
Keyster rebuild kits & carburettor spares - airscrews, jets, needles, starter plungers & gaskets.
Also petrol/ethanol proof float bowl gaskets. IMD pistons preferred seller.
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