Planning to spray the engine shortly. The bolt wasnt attached to the carb because part of the old carb is broken. I dont think it was leaking because on the new carb both bolts work fine and there is no difference. Also this was just something I tried, I removed the air filter and covered the carb intake slowly with my hand thinking that if there was an air leak giving it less air might make a difference. It just slowly ran worse and died. I watched videos today online of fa50s running and they run way better than mine does lol. Soon as I hit 17 mph it starts this farting sound and that's it no more speed. I have to be missing something. Gonna start with checking for air leaks next. See how that goes.