Hi all new to the fourm always came here for info but never posted.Well I bought a 2000 400ex guy said it had no spark so i got it cheap.Got it home and pulled spark plug it was black as coal.Got another NGK plug it had spark replaced plug got it runnig but smokeing BAD.Tore it down re ringed it.No smoke runs great in netural revs up idles BUT NO POWER.Its like takeing off on a ten speed in a tall gear.It wont even brake the tires loose.It gets beat by a 325 polaris t boss.If you have any solutions please let me know Thanks Dave.
ohatv
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