Maintenance72EMU46071Maintenance chart 1TIP: Refer to the sections in this chapter for explanations of each owner-specific action. The maintenance cycle on these charts assume usage of 100 hours per year and regularflushing of the cooling water passages. Maintenance frequency should be adjusted whenoperating the engine under adverse conditions such as extended trolling. Disassembly or repairs may be necessary depending on the outcome of maintenancechecks. Expendable or consumable parts and lubricants will lose their effectiveness over time andthrough normal usage regardless of the warranty period. When operating in salt water, muddy, other turbid (cloudy), acidic water, the engine shouldbe flushed with clean water after each use.The “ ” symbol indicates the check-ups which you may carry out yourself.The “ ” symbol indicates work to be carried out by your Yamaha dealer.Item ActionsInitial EveryPage20 hours(3 months)100 hours(1 year)300 hours(3 years)500 hours(5 years)Anode(s) (external)Inspection orreplacement asnecessary87Anode(s) (internal)*1Inspection orreplacement asnecessary—Anode(s) (internal)*2 Replacement —Battery (electro-lyte level, terminal) Inspection 88Battery (electro-lyte level, terminal)Fill, charging orreplacing as nec-essary—Cooling water leak-ageInspection orreplacement asnecessary—Cowling lock lever Inspection 51, 53Engine startingcondition/noise Inspection 56Engine idlespeed/noise Inspection 77Engine oil Replacement 78Engine oil filter(cartridge) Replacement —
