Flip the pressure switch control lever to the Auto position. I've drained the fuel, cleaned the carburetor (which was plastic), checked the spark plug. Sometimes these mowers break down or start acting 'funny,' causing the mower act sluggish or not turn on. ' Using a Craftsman push mower provides a speedy and efficient way to mow the lawn. On most of these Chinese quads, you can push start them. Will start then cut out and takes 5 or 6 goes on the starter before it start,but then will all of a sudden die on the throttle. I have to be constantly revving it to keep it going. Lexmoto 125 wont start Air Compressor: Won't start.