12. With the alignment pin installed in the camshaft and the cam lobes directed down (toward the pis- ton), place the camshaft in position and verify that the timing mark on the magneto is visible through the inspection plug and that the timing marks on the camshaft sprocket are parallel with the valve cover mating surface. NOTE: When the camshaft assembly is seated, make sure the alignment pin in the camshaft aligns with the smallest hole in the sprocket. 13. With the alignment pin installed in the camshaft, MD1270 loosely place the cam sprocket (with the recessed side facing the camshaft lobes) onto the camshaft 8. Install the two lower nuts securing the cylinder and place it into position with the cam chain over head to the cylinder, one in front and one in rear. the sprocket. 3 MD1192 MD1359 9. In a crisscross pattern, tighten the four cylinder 14. Place the C-ring into position in its groove in the head cap screws (from step 7) to 27.5 ft-lb. cylinder head. Tighten the two lower cylinder head nuts (from step 8) to 20 ft-lb and the cylinder-to-crankcase nuts (from step 4) to 8 ft-lb. 10. With the timing inspection plug removed and the cam chain held tight, rotate the crankshaft until the piston is at top-dead-center. 11. While holding the cam chain sprocket to the side, install the rear cam chain tensioner guide into the cylinder head. Install the pivot cap screw and washer. MD1131 NOTE: At this point, oil the camshaft bearings, cam lobes, and the three seating journals on the cylinder head. NOTE: Note the position of the alignment marks on the end of the camshaft. They must be parallel with the valve cover mating surface. If rotating the camshaft is necessary for alignment, do not allow the chain and sprocket to rotate and be sure the CD383 cam lobes end up in the down position. 15. When the camshaft assembly is seated, ensure the following. 3-23