petrol leaking!

[Guest]

Hi guys,

So I have noticed Im getting a fuel leak only when the engine is running coming from the petcock rear - where the suction thingy is.

I took the tank off and took off the petcock and disassembled and cleaned it - the rubbers seem ok, but the thing has a hole built into it, where the leak is coming from!

At a loss of what to do next!

http://s24.postimg.org/ly25wvqup/IMG_20130513_162406.jpg

[Guest Hodgy]

If it's leaking through the breather hole, then the chances are the diaphragm is punctured and needs replacing

[Guest]

oh, so its a breather hole - thanks!

Whats the diaphragm ? is that the rubber bit? which side? there are two

many thanks!

[Guest Hodgy]

oh, so its a breather hole - thanks!

Whats the diaphragm ? is that the rubber bit? which side? there are two

many thanks!

 

The diaphragm is the rubbery thing, the 2 sides should be held together in the middle with a metal bit that forms the valve that shuts off the supply of fuel when the vacuum is removed by switching the engine off. their not that expensive and usually come as part of a petcock service kit

[Guest]

Thanks Ian, found one on amazon - 20 quid! for a few bits of rubber! Guess kawasaki have to make their money somehow haha

Ill have to leave it till I get paid in two weeks tho, hopefully the bike dont explode or catch fire in the meantime haha

[Guest Hodgy]

Here you go, a bit cheaper

http://www.ebay.co.uk/itm/Kawasaki-GPZ-500-S-EX500A3-1989-Petrol-Tap-Repair-Kit-Fuel-Seal-/200821397540?pt=UK_Motorcycle_Parts_13&hash=item2ec1e35824

[Guest]

ace!

[oslin06]

Just for the record the breather hole is to allow the diaphragm to move up and down without causing a vacuum behind it, which would stop it moving and opening and closing the tap.

Keith