Top Dead Center?


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  • Toinky

Posted March 13, 2010 - 08:28 AM

#1

I've adjusted my valves on my 2006 WR450 several times. I recently had my motor rebuilt by a local motorcycle shop. Now it's time to adjust the valves, but it seems like something isn't quite the same. When I align the piston to TDC by using the timing mark in the window, the cam lobes aren't quite where they should be. To get the cam lobes/punch marks aligned as they should be, I have to go slightly past the TDC mark on the flywheel.

So, I'm wondering, (1) do you suppose the guy who rebuilt the motor got the timing off one tooth? If so, (2) don't you think I would have noticed it running ratty after the rebuild. And finally, (3) what should I do about it?

Edited by Toinky, March 13, 2010 - 09:03 AM.





 
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