1992-1998 Kawasaki PWC Jet Ski Service Repair Manual., Page 211Get this manual
avoid removing much material from one sideIf suitable is available, the method is to 400-600 wet sandpaper around LARGE fileDraw the file as evenly as possible in the surfaceDo file in placeDraw the file in many, many directions to get as even finish as possibleAs the work moves along, the progress with the and feel gaugeO the 0.00V1 (0.1rnm) feel will no longer slide under the edge, consider the work completedIf the warpage be reduced using of the described methods, the block cylinder should be replaced
ONE LAST CHANCE If the warpage be reduced and it is not possible to obtain new and the warped be assembled for the use the is strong possibility of water leak at the head gasketIn an prevent water leak, follow the instructions outlined in Assembly on 8348-8 SEALANTS, ADHESIVES, LUBRICANTS,