Eddiesanders250
04-24-2005, 05:04 PM
my 400ex is not working correctly. It bogs down when i give it gas. I dont think it is the spark plug because it idles fine. Also i had the air box lid off then i put it back on and this is when i discovered the problem. I took the cover off again and it made it better but it still is not right it still bogs down. It may be the spark plug im going to change it to see if that is the problem but i dont think that it is. Any help if you havehad thisproblem or may know what the problem is.