I have a 2010 Sport with a GXV-530 Honda engine. When I start it up there is very little power and the engine runs a little rough. If I engage the blades the mower will stall. After running a few minutes the issues gos away and the mower runs strong. I have changed the plugs but no good. I can pull the wire off the spark plugs one at a time and the mower will fire on each side. I am not a pro at this but I figure it is probably electric, maybe ignition related. Would like to take a shot at fixing it myself if it is not too big of a job. Anybody have any ideas?