Carburettor kit

CarbKing in Missouri

Best kits you can buy

You'll have to call him

Check goggle for number

Where is it leaking? First, check that the float is still sound and hasn't let fuel in therefore not being able to shut the fuel supply off as it should. If the float has failed and allowed fuel in, drill a tiny hole to drain the fuel from the float then solder that hole plus the offending part then it should be as good as new.

Those Stewart carburetors are so simple and have very little to go wrong. Apart from gaskets which you make yourself, I don't know what could be in a kit.

Good luck and let us know how you get on.