how to adjust the valves on a 20 horse power briggs and stratton engine on a sears craftman rideing mower model number 917.276824
if you would like to see a video go to utube an type in ifixit4u lawn mower repair valve adjustment.
On that model number the valve clearances or as follows. Inlet valve...0.010... Exhaust valve..0.013. Set cold. Set hot... Inlet 0.002 and exhaust 0.003. Set piston on the rock.. That is: Piston at TDC (Top Dead Center) on the compression stroke. Undo the bolt or bolts a 1/4 and set the feeler gauges between the tappet and adjust so the feeler is a stiff pull. Tighten the lock-nut or nuts and repeat for the next valve. Good to go. mmalky: 50 years of diagnosing and fixing large and small mower engines.
you shouldn't have to ! unless you have burnt a valve,
