PERIODIC MAINTENANCE Every 2000 Hours of Operation Every 5 Years Replacing the Flexible Mount Replacing the Cone-Clutch Replacing the Flexible Mount See your authorized Yanmar dealer or distributor for procedure. Flexible Mount must be replaced every 2000 hours. Replacing Rubber Diaphragm Seal Ring Replacing Rubber Diaphragm Seal Ring To replace, consult your Yanmar Marine dealer. Replacing the Cone-Clutch See your authorized Yanmar dealer or distributor for procedure. SD Operation Manual 51 © 2009 Yanmar Marine International