Anyone know where I can find a replacement carb for my '85 LT230S Carburetor? Used ones on Ebay are over $100.00. Problem I found is when changing the twist throttle back to a thumb unit the previous owner somehow stripped the threads for the top of the carb??? Would anyone have a good idea of how to possibly repair it? I'm afraid I'm going to try and hit the gas and the top is going to pop right off! Thanks for any help you can provide.