6. 4-STROKE: CYLINDER HEAD/VALVES VITALITY 50 Turn the cooling fan clockwise so that the "T" mark on the flywheel aligns with the index mark on the crankcase to bring the round hole on the camshaft gear facing up to the top dead center on the compression stroke. Round Hole Time Marks Remove the four camshaft holder nuts and washers. Diagonally loosen the cylinder head nuts in 2 or 3 times. Nuts/Washers Camshaft Holder Remove the camshaft holder and dowel pins. 6-5