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2002 400ex


terry001

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I was riding the other day when the atv just lost power. Starts up fine but no power. Has rocker noise so i pulled the valver cover off to check rockers. One Rocker looked loose. I pulled the head off to check the valve. Looks a little weird but not out off the ordinary. Any ideas. I put compress air to engine and sound some air is coming through the head.

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