400ex head problems?
#1
400ex head problems?
My girlfriend has a 2000 400ex and it smokes. Well it smokes bad. It was just rebuilt last summer but i was told it needs new valve guides and seals by a couple different people. I just wondered if this sounded right or what anyone thought could be to problem. I really don't think that it is the piston rings or anything because it deffinatly doesn't lack and power or nock, but who knows i guess.
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