When you take the bottom of the carbs off you see the float. The bit you took off is the float bowl, the gaskets are the black rubbers in the top of the bowl.

After the bowls have been taken off a few hundred times they get flattened and leak. Causes bad starting and difficult idle adjustment. When you turn on the ignition the fuel pump will prime, flick the kill switch off/on and see if it takes more time to prime.

oh cheers but there not leaking there leaking round the needle where it goes into the brass insert when you look into the cark with the airbox off just pours out on tickover on num 2and 4

That might be a few things mate but they really need to be off & stripped & check for any unusual wear in those two carbs against the other two. Its not hard to take the carbs off & strip them down, make sure you have a good fitting screwdriver for the float bowl screws as I can bet theres at last one that wont want to undo lol. just strip two carbs at a time then you know where things go back.

cheers ill try that in the week
just fired her up again great till she came of choke got fuel pissing out the overflow bike just revs its self up and down also stinks of fuel from the crankcase breather good thing is ive fixed the fan and got myself a set of clean fairings

sounds like the float needles are worn,they are not shutting the fuel off when the floats rise.

this has only just started today never happened before with the overflow

stripped down carbs 2day and cleaned with carb clearner couldnt see anything worn but i dont no what im looking for but did notice that 2 of the brass inserts that the needles go into wasnt lined up to go into the keyway so were sitting higher than they should could this be the prob with it over reving will

Well it could be if the needles are hitting the bottom of the emulsion tubes before they seat properly, take the carb tops off & rubber diaphrams & push the emulsion tubes out a bit & twist them so they sit right back down the same as the other two. That might be the problem.

well fitted carbs overflow prob is fixed but still holds onto the revs when you rev her up but have found something out if i wind the tickover knob right out the bike revs up and down freely but wont tickover do i need the carbs balancing now also i noticed one of the butterflys has been butchered so im after a butterfly and screws if anyone has one spare