7. CYLINDER HEAD/VALVES MXU 300/250 Tensioner Screw Turn the cam chain tensioner screw clockwise to tighten it. Remove the four camshaft holder nuts and Camshaft Holder Nuts/Washers washers. Diagonally loosen the cylinder head nuts in 2 or 3 times. Remove the camshaft holder and dowel pins. Camshaft Remove the camshaft gear from the cam chain and remove the camshaft. 7-5