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06 WR450 Valve shim limits

2 posts in this topic

 On the older tappet valve motors I always set the intakes at the loose limit due to the valves sinking into the head over time, I also set the exhaust valves at the tight limit, they get looser from carbon buildup on the under-side of the valve.


Do the shim motors act the same way over time?


Has anyone had the exhaust valves on the wr get tight over time?

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