I was riding about 3 hrs and no problems. I've never had any problems with my Wolverine but we stop for a 10 drink break and when we started our bikes back up mine wouldnt get out if its own way. It will idle, but as soon as u press the throttle it just lugs. If anyone has one of those reverse limiters that keeps you from going fast in reverse until u press the button, thats what it sounds and acts like. My wife has a Trail Boss with this limiter on it and its exactly what my bike does. I installed new plug, tore the carb down and new gas. Nothing same problem. HELP............