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To adjust the overhead valve on a 5hp Briggs and Stratton engine, first, ensure the engine is off and cool. Remove the valve cover and use a feeler gauge to check the clearance between the valve stem and rocker arm; it should typically be around 0.003 to 0.005 inches for intake and exhaust. If adjustment is needed, loosen the lock nut on the rocker arm, turn the adjusting screw to achieve the correct clearance, and then re-tighten the lock nut. Finally, reassemble the valve cover and start the engine to check for proper operation.

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2mo ago

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