Ok, I will start by pulling the carbs off and going through them, should I just buy a rebuild kit and rebuild them, while I have them open again? Who knows that when they were rebuilt before being sent to me if something was in backwards or missing a diaphragm I just opened them to Check and clean them out???? And it's funny Bc a week or so ago I poured pre mix into the carbs and it fired up and idled really low... and I was able to shut it down and restart it and it would idle low, but when I pulled the throttle it would stall, then I added the idle screw it was missing and adjusted the carbs back to factory and now it does nothing???? That's why I'm thinking there is an issue with my carbs