steveof wrote:Yes i think that`s best,although there don`t seem to be any avalible,tried ebay nothing on there...the tap has the two parts of diaphram just appears to be missing the spring.

Im sure you can get a spring some something... there not very strong springs, out of a kids toy, or even an NC30 one might work.

But you still need to stop the fuel tap leaking, perhaps theres a bit of shit caught up in it, try blowing some compressed air through it while turning on and off.

will give that a try,i have orderd a new vacume hose and when i sort the fuel tap out i am going to revert back to the original vacume operated system.....problem is i have had a look for the location for the vac hose on the cylinder head and can`t find it........is it on the left rear cylinder as you sit on the bike...NC24

Just spoke to the guy at NRP and he tells me that they are as from next week going to be producing the internal seals for the NC24/NC21 fuel tap`s,i took mine apart this afternoon and there is a seal behind the lever that stops fuel comming out of the tap when in the off position,so could be sorted soon...

Ok managed to sort the fuel tap,no more leaks and have put a new diaphram and spring in...but can`t remember what spiggot on the fuel tap the vacume pipe goes on....anyone

steveof wrote:Ok managed to sort the fuel tap,no more leaks and have put a new diaphram and spring in...but can`t remember what spiggot on the fuel tap the vacume pipe goes on....anyone

the outside one.

the inside one is a vent to allow the diaphram to move.

did you find the spigot on the engine block?

its on the outside of the rear left cylinder (when sitting on the bike) about half way down.. hidden by the frame tube.

`Hi Neo,yes found the spiggot on the cylinder (very well hidden) put a new vac pipe on...Just been out to the shed and put the pipe on the ouside spiggot and with the fuel tap on sucked on the end of the pipe and no fuel comming out..tried the middle one and fuel comes out fine...could i have put the diaphram in wrong.

Maybe its the middle then, I really have forgotton.

viewtopic.php?f=24&t=18259

I wrote in this thread that the vaccum hose goes to the middle one of the fuel tap.

As long as its working it should be ok.

Ok thanks Neo,have been out to get some new oil,so will have it running tomorrow...