Remove the valve covers with the supplied allan wrench. Be careful not to tear the paper gaskets. If they tear just go to an automotive store and buy some paper gasket material (It comes in different thicknesses)and make your own by tracing the valve covers.To adjust move the crankshaft unti you see the valve rockers move all the way up(on the side of the spring)then loosen the nut with the wrench provided,now loosen the center allan bolt(located on the center of the nut). Now its time to place the filler gauge between the tappet and the spring and while holding it in place tighen the allan head until you get some resistance on the filler gauge.You should be able to slide the filler gauge with some resistance. Repeat the same on the other valve and you are done. If any questions just ask. Hope that helps. Lou