head

Joined
Sep 9, 2003
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#1
I have a 1983 yz80 and just started having a knocking sound in the head, just wondering what you guys think it could be? Any help would be great thx.
 

Michelle

Sponsoring Member
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Oct 26, 1999
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#2
When's the last time you did a top end? (i.e. piston & rings)
It could be piston slap.