Valve setting are as follows. INTAKE is .003-.005. EXHAUST is .005-.007. You want to take your spark plug out and find compression stroke. Then take your valve cover off. That’s the silver cover with the numbers stampings. Now bring the piston on top dead center. The way you know, if you hold your finger over the spark hole you’ll feel the pressure on the upstroke of the piston. You can do this by hand by turning the flywheel. Once you feel the pressure take a piece of wire about a foot long and stick it in the spark hole. This is know when the piston is right on TDC (top dead center). Now your ready to adjust the valves. Intake valve is always the same side as the carb and exhaust is always the same side as the muffler. Not sure of the tools you need,but these probably have a jam nut on the top o the rocker. Losen the nut and adjust to the desired spec. When putting the cover back on use a bead of oil resistant RTV sealant to seal it back up. Put the plug in and fire it up.