2. Place the valve cover on the Surface Plate covered with #400 grit wet-or-dry sandpaper. Using light pressure, move the valve cover in a figure eight motion. Inspect the sealing surface for any indica- tion of high spots. A high spot can be noted by a bright metallic finish. Correct any high spots before assembly by continuing to move the valve cover in a figure eight motion until a uniform bright metallic finish is attained. ! CAUTION Do not remove an excessive amount of the sealing surface or damage to the camshaft will result. MD1211 Always check camshaft clearance when resurfacing A. Starting with the top ring, slide one end of the the valve cover. ring out of the ring-groove. B. Remove each ring by working it toward the dome of the piston while rotating it out of the groove. AT THIS POINT To service piston, see Servicing Top-Side Compo- 3 nents sub-section. AT THIS POINT To service center crankcase components only, pro- ceed to Removing Left-Side Components. CC130D Servicing Top-Side ! CAUTION Components Water or parts-cleaning solvent must be used in conjunction with the wet-or-dry sandpaper or dam- age to the sealing surface may result. NOTE: Whenever a part is worn excessively, Removing Valves cracked, or damaged in any way, replacement is necessary. NOTE: Keep all valves and valve components as a set. Note the original location of each valve set VALVE ASSEMBLY for use during installation. Return each valve set to its original location during installation. When servicing valve assembly, inspect valve seats, valve stems, valve faces, and valve stem ends for pits, burn marks, or other signs of abnormal wear. 1. Using a valve spring compressor, compress the valve springs and remove the valve keepers. NOTE: Whenever a valve is out of tolerance, it Account for an upper spring retainer. must be replaced. Cleaning/Inspecting Valve Cover NOTE: If the valve cover cannot be trued, the cyl- inder head assembly must be replaced. 1. Wash the valve cover in parts-cleaning solvent. CC994 3-13