Does anyone know of a good carb replacement for the original mikuni for this old Quadrunner? I am trying to restore the old dog but the carb is unsalvageable. It will run but the choke valve is stuck and broken and the engine runs very rough and will not idle. I tried a Mikuni 36mm but it is too large. Before you ask,I have cleaned it and installed a rebuild kit but the corrosion is too severe to overcome. Thanks for any suggestions.

Larryboy