Originally Posted by duck
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:
DOH!!! I'm such a dumbass!
I did the same thing but I have a 2X2 the perfect length to wedge under the steel round stock.
Why didn't I think of the string? Spent half a day getting the 2X2 the right length.