I bought a used x300 with 280 hrs on it and now it decides to intermittently stay running while the ignition is turned to STOP? I also noticed some fuel coming out of carb? Don't have a manual and every search I do is related to it not starting instead of not stopping lol! pulling my hair out as I've disconnected and reconnected pretty much every wire there is and it keeps running!!!! I either close the choke and cover carb intake or remove spark plug wires to shut it down/ Can someone please give me a direction to work on as the only wiring diagram I downloaded was the wrong one. Please help