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Knocking noise on new engine.

3K views 11 replies 6 participants last post by  GeoaidMXz 
#1 ·
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I recently finished a total engine rebuild on my 2003 ski doo 800 mxz. It makes a horrible almost knocking sound at idle, but when i rev it up it goes away. It has a can on it, not sure if thats just how it sounds and its also in my garage. Did I do something wrong well rebuilding it or is it ok? I attached a video of it running.
 
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