First one is round type slide, like an su. Second and third are the throttle valve and slide type. The ones from the 250cc engine might be way too small......

Sorry my links open backwards! Third one don't bother, other two are ok but you ought to look for similar engine CC to keep the jetting close.

So in my head, the only ones close to suitable for an A12 are the
Kawasaki Ninja Zxr 750 ones?
http://www.ebay.com.au/itm/2810751252 ... _trksid=p3984.m1423.l2649

When I re-jet them, will the fact that they are for 750cc motor matter?

I insist you take a look on eBay US, there are many good options there.

If you buy them from an engine close to your engine capacity you may find they need a retune rather than a rejet. Also keep in mind some of the older carb types take a needle which is another component of the tune. Good luck with the hunt.

I'm just trying to find items with postage that isn't killer.
Currently out of job and little money means I need to restrict myself to QLD/Australia at the moment.

But I will have a squiz at EbayUS, had a look at "pin wall motorcycles" but they prices are a little dearer than the ones in Australia.
Guess I'll have to wait it out to find a good deal :P

That's the spirit. Wait it out for rallytwits input too he runs FCR carbs on his race car.

A good set of carby's to use would be Honda CBR1000F from memory a 1993 model. They were a 38mm constant velocity carb that came in sets of 4

Wow there must be a shed somewhere with some if those in it near by Ivan.... Something to do with sucking and vaccum I knew you would be close by

Ooops Ivan is correct, constant velocity, not constant vacuum.........my apologies.

So far I've narrowed it down to:

Kawasaki GTR1000
http://www.ebay.com.au/itm/2810760286 ... _trksid=p3984.m1423.l2649

Kawasaki ZX7R
http://www.ebay.com.au/itm/1709737219 ... _trksid=p3984.m1423.l2649

Leaning towards the first one because its 1000cc (close as I can find for a reasonable price) and is about $50 cheaper.