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Old 06-07-2009, 05:53 PM   #157
duck
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Joined: Mar 2004
Location: Seattle (Berkeley with rain)
Oddometer: 10,403
When you loosen the timing chain on a BMW 4 valve K bike to do valves you supposedly need a $70 BMW special tool to keep the cam chain tensioner depressed.

I shove a bit driver in the hole and apply some leverage with a string tied to the fork trees.

I practiced first on a parts engine I had to make sure it would work before tring it on one of my real bikes:

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