Valve Adjustment Question

[l008com]

Does the engine HAVE to be at top dead center to adjust the valve/rockers? Or can the engine be anywhere in the cycle as long as its a point where both valves are fully closed?

 

[hlw49]

TDC on the compression stroke is the only place both valves are fully closed at the same time. Briggs says piston 1/4 inch past TDC.

 

[ILENGINE]

But for ease of operation you can adjust the valves having one valve open and adjust the closed one, and then turn the engine over until the adjusted valve is open and then adjust the newly closed one. Which is basically how multi cylinder engines are adjusted.