Alright I'm in the process of rebuilding my trusty old ASE 250 and I had been having problems with the throttle hanging on it. I bought a new throttle cable and installed it before it blew up, the cable did little to prevent the sticky condition. So I'm thinking it's the Mikuni that holds my problems, I have a rather nice Keihin just laying around collecting dust and was wondering if it would work. The Keihin is physically the same size as the old Mikuni and I know I'll probably have to jet it correctly but other than that can anyone forsee any problems? Has anyone attempted carb swapping on their old bikes? I can't wait until I get the old beast running again, I know it'll give my KDX a run for its money now.