Maintenance
1.Water surface
2.Lowest water level
5.Fill the tank with fresh water to above the
level of the
ECM00300
CAUTION:
Do not run the engine without supplying it with cooling water. Either the engine water pump will be damaged or the engine will be damaged from overheating. Before starting the engine, be sure to supply water to the cooling water passag- es.
ECM00290
CAUTION:
If the fresh water level is below the level of the
6.Cooling system flushing is essential to prevent the cooling system from clog- ging up with salt, sand, or dirt. In addi- tion, fogging of the engine is mandatory to prevent excessive engine damage due to rust. Perform the flushing and
fogging at the same time.
EWM00090
WARNING
●Do not touch or remove electrical parts
when starting or during operation.
●Keep hands, hair, and clothes away from the flywheel and other rotating parts while the engine is running.
7.Run the engine at a fast idle for
8.Just prior to turning off the engine, quick- ly spray “Yamaha
00)alternately into each carburetor or the fogging hole of the silencer cover, if equipped. When properly done, the en- gine will smoke excessively and almost stall.
9.Remove the outboard motor from the test tank.
10.Drain the cooling water completely out of the motor. Clean the body thoroughly.
11.Install the silencer cover/cap and top
cowling.
EMU28400
Lubrication (except oil injection models)1.Grease the spark plug threads and in- stall the spark plug(s) and torque to proper specification. For information on spark plug installation, see page 40.
2.Change the gear oil. For instructions, see page 46. Inspect the oil for the pres- ence of water that indicates a leaky seal. Seal replacement should be performed by an authorized Yamaha dealer prior to use.
3.Grease all grease fittings. For further de-
tails, see page 40.
EMU28420
Cleaning and anticorrosion measures1.Wash down the exterior of the outboard motor with fresh water and dry off com- pletely.
37