Twin engine 19.5 brigg ohv can only set valve on one side

SOURCE: Briggs and Stratton OHV V-Twin 24hp repetitive valve adjustment

Try pulling out the choke a little, if it stops backfiring the mixture is too lean, check the intake
pipes at the cyl head and also the plastic runners to the carb for leaks.
Dennis in Chicago

SOURCE: how do you adjust the valves on a 17.5 ohv briggs

Hi 1st remove the rocker cover and spark plug
hold a long skinny screwdriver down the plug hole and wind the engine by hand until you get top dead centre (NOTE WATCH ROCKERS) first the intake valve will open then close when it closes the piston should be coming up to top dead centre and both valves should be closed and the rocker loose setting should be 0.004 thou you need to undo the locking screw down the centre of the adjusting nut then you can adjust to setting, (DONT FORGET TO DO THE LOCKING SCREWS BACK UP) reassemble

SOURCE: Briggs and Stratton 22hp v twin OHV smoking badly

First thing to do is pull your dipstick and check for broken or missing O-ring also as you pull it, look to make certain that it was seated properly and all the way locked. If either condition exists, you will be leaking into the crankcase which will cause your symptoms

SOURCE: My Briggs and Stratton 24hp twin OHV engine

Gotta find it

SOURCE: 2006 17.5 briggs and stratton ohv need specs on

Remove the spark plug. Turn the flywheel until the piston is at Top Dead Center (TDC) on the compression stroke. Continue to turn the flywheel until the piston drops down 1/4". Set the intake valve at .004" - 006". Adjust the exhaust valve to .006" - .008". You can use a pencil to know that the piston down 1/4". Just put it in the spark plug hole against the top of the piston and then place a mark on the pencil at the lip of the spark plug hole. Now measure up 1/4" and place another mark. Turn the flywheel unit the second mark is flush with the lip. The feeler gauge should be snug but move freely when adjusting the valves. Double check it after locking the rocker arm nut down.