How do you ajust valves on 200 twinstar?

To adjust the valves on a 200 Twinstar, first ensure the engine is cool and remove the valve cover. Rotate the engine to top dead center (TDC) on the compression stroke for the cylinder you’re adjusting, then check the clearance using a feeler gauge. Adjust the valve rockers by loosening the lock nut and turning the adjusting screw until the correct clearance is achieved, then secure the lock nut. Repeat for the other cylinder, and finally, reattach the valve cover.