03'400exrider
04-25-2009, 07:24 PM
Another problem of mine on a different 400ex..
i have put a new cylinder, piston, and cam in this bike. After the rebuild, the bike will not start. It hits once, then turns over twice-- then repeats very consistantly. I know the valves are good and not bent. I also believe that the timing is correct because it is set EXACTLY like my other 400ex that runs perfect. The bike ran before rebuild, but the piston was bad. Does anyone know what might be the problem.
also, after rebuild the compression reads to be 115 psi
i have put a new cylinder, piston, and cam in this bike. After the rebuild, the bike will not start. It hits once, then turns over twice-- then repeats very consistantly. I know the valves are good and not bent. I also believe that the timing is correct because it is set EXACTLY like my other 400ex that runs perfect. The bike ran before rebuild, but the piston was bad. Does anyone know what might be the problem.
also, after rebuild the compression reads to be 115 psi