Hi and welcome to the forum
If it started 10 times and the 11th time it did not, maybe battery voltage was to low.
The compression release is built into the cam shaft.
Seen else were:
Quote:
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Remove the valve cover then rotate the engine over by hand until you reach top dead center compression stroke, Then remove the spark plug. Once at TDC insert a small screw driver in the plug hole touching the piston and rotate clockwise past TDC until you see the screw driver move down inside the hole 1/4". Now loosen the jam screw in the center of the adjustment nut and adjust to .005-.007(?)" both intake and exhaust. Hold the adjuster nut with your wrench while tightening the jam screw. It may take a couple times to get it right because when tightening the jam screw it could throw the adjustment out so check after tightening.
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http://www.lawnsite.com/archive/index.php/t-174278.html
Let know how it works out for you.
BG