Carb Rebuild - Honda GB500

I've got the bowl off the carb and had a look for where my leak might be coming from. The floats are in good shape (and still plenty buoyant) and the float valve works smoothly. The gasket looks to be in pretty tough shape though. I'll have to try to find a replacement.

I'm not exactly sure what carb this thing actually has. It came with instructions to install a 38mm Mikuni but the instructions mentioned hooking up the stock choke cable which won't work on this carb. It has a choke lever. It's defnitely a Mikuni though, I'm just not sure which one.

UPDATE: I think I found the culprit: cracked supply line.

I also managed to find the proper float bowl gasket on bikebandit.com. While I was there I picked up a 13 tooth front sprocket.