Hey Malcolm,

Glad to hear that it's almost working :)

There'd be a few things I'd look at:
- Enrichment system
- Ignition system (for that plug/coil)
- Air jet (as you mentioned)

If you don't have the enrichment system connected, then I suggest you
connect it :)

I'd also see if you have a good spark on that plug, maybe the plug's
bad, maybe the lead is bad (I think you can change them with standard
lead wire), maybe the coil is bad (try swapping the coils).

I'd also see how far out the air jet for the cylinder is compared to the
others - get some calipers in the screw hole and compare it to the
others. If you need another jet, I might have a good one floating
around - or you could try one from your other bike..

Did the mechanic clean out the carburettor and re-set all the jets to
stock?

As for getting the screw out - I'd ask a mechanic. The carburettor's
pretty soft metal and you don't want to risk damaging it. You might
find an "Easy-out" small enough to do it, but that's something I'd give
to somebody else to do :P


Good Luck!



Carl


On Thu, 2005-10-06 at 09:45 +1000, malcolm wallace wrote:
> Hey Guys
>
>
>
> I have as GS250 FWD in a go kart. I have finally got the valuve clearances
set, thanks Carl now it revs. But it is a total pain in the but to start.
>
>
>
> One of the air jet screws on the carbie is jammed and there is no way I'll get
it out. Has anyone else experienced this problem and if so what do you suggest I
do.
>
>
>
> When I try to start it it can take me 20 mins or until a flat battery to
finally get it to rev and run without the starter moter. Up untill it actully
revs the clyinder with the jamed carbie air screw has not even tried to go, the
exhaust remains stone cold all the others begin to warm up. When It finnaly gets
going all clyinders run fine. and above 4000 rpm appears to rev smooth.
>
>
>
> Any ideas?
>
>
>
> Thanks
>
>
>
> Mal
>
>
>
>
>
>
>
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