Quote Originally Posted by thirdbike View Post
Was wondering if anyone has ever resleeved the slide bore of a carburetor. The Amal concentric carburetors were used on vintage British motorcycles and, in fact, they are still available today.
I would bore the body in a lathe, taking the absolute minimum to clean it up. The Concentrics didn't have a through hole and it would be near impossible to manually ream it parallel. Once you have bored the carb I suggest making a new slide complete, That is easy enough those slides are quite simple.Iit would be best to get it hard chromed as many race Amals were, or other coating. There is a lot of choice for coatings these days that were not available in the past. If you plate or coat it then you have more choice of material to make the slide from, brass and aluminium are the traditional materials but you could use steel and machine it with a thinner wall. The Mk2 carbs have aluminium slides hard anodized.

PS. Are oversize slides available from the company that has carried on making the carbs, they do have a full range of spares.