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Valve Help

2119 Views 2 Replies 3 Participants Last post by  03trx250ex
Hello all, 1st time poster long time viewer. I am having valve tapping noises coming from my 400ex. I had new piston, rings, and valve seals replaced in it. Valves are set at factory specs. It sounds great at idle no noise at all but as soon as you get on the gas a little they get loud. Any suggestions would be greatly appreciated.

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