ZZR 1052 Engined Car Fuel Issue

[PTP165]

Hi All

Any advice would be greatly appreciated.

I have recently obtained an OMS2000M with a Kawasaki ZZR1052 engine. I am preparing for an event next weekend and was just checking over a few things. I seem to have fuel coming out of one of the overflow pipes on the FCR 41 Carbs. It looks like one of the carbs is overfilling. If I turn the pump off them it stops. It hasn't done this before and wondered if anyone could shed some light. Many thanks.

Steve

[stevieturbo]

needle valve not seating.

[PTP165]

Hi

Thanks for the input. I took the carbs off and checked the floats and needle valves for dirt, put them back on and it still does it. It has to be the needle valve or seat doesn't it?

Steve

[stevieturbo]

Instead of checking for dirt. Why not check if they are sealed ?

if it is only one carb doing it, then clearly that one isnt sealing.

they all have a common fuel feed, of the same pressure ?

[Steve_D]

Could be the valve and seat or it could be the float is punctured and part filled with fuel.

If it is only the one carb doing it then it has to be in this area.

Steve

[PTP165]

Thanks again.

Sorry for sounding dumb but is there a way that I can check if they are sealing?

Steve

[Steve_D]

PTP165 said:

Thanks again.

Sorry for sounding dumb but is there a way that I can check if they are sealing?

Steve

Remove the float bowl and the float. A quick shake of the float will tell you if it has fuel inside.

Take the float and try to sink it in some water, this will give you a feel as to how hard the float is trying to lift and close the fuel inlet valve. With the float reinstalled hold it up to close the valve using the same effort tested before. Have someone turn on the pump and see if fuel leaks. If it does then try more effort. If it still leaks then either the valve and seat are well damaged or the valve itself is not sealing in its housing.

There is also the possibility the fuel pressure is too high.

Steve