WR400 Cam Sprockets

1 reply to this topic
  • chinesespaceman

Posted January 14, 2007 - 10:44 AM


Hi Guys,

Following from my queries regarding cam timing I have checked the tensioner and seems to be okay. It's not overly strong, but returns quickly and smoothly.

The chain wasn't sitting neatly on the sprockets, so I figured to replace it anyway and inspect the crank sprocket and cam sprockets. Not go to the crank sprocket yet as need to make a tool to hold the flywheel, but take a look at the wear on the teeth:cry: :lol:

I take it that this is heavy wear and not normal.


So what are my options. If I want minimum downtime, do I reassemble with new chain, adjusting the valve clearances whilst I am in there and order some new cams?

Assuming the cams need replacing, what are the best?
Are the hotcams good alternative to OEM?



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  • Jekel

Posted January 19, 2007 - 06:42 PM


What year WR?
Are the teeth pitted and uneven?
Whatever route you go I would be sure to get the automatic decompression cam.


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