Yamaha 15D Owner's Manual download pdf (Page 39)

Maintenance

34

2. Fill the fuel tank with fresh fuel and add

one ounce of “Yamaha Fuel Conditioner

and Stabilizer” (Part No. LUB-FUELC-12-

00) to each gallon of fuel.

NOTE:

The use of “Yamaha Fuel Conditioner and

Stabilizer” eliminates the need to drain the

fuel system. Consult your Yamaha dealer or

other qualified mechanic if the fuel system is

to be drained instead.

3. Remove the engine top cowling and si-

lencer cover.

4. Install the outboard motor on the test

tank.

5. Fill the tank with fresh water to above the

level of the anti-cavitation plate.

CAUTION:

ECM00300

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 wa-

ter to the cooling water passages.

CAUTION:

ECM00290

If the fresh water level is below the level of

the anti-cavitation plate, or if the water

supply is insufficient, engine seizure may

occur.

6. Cooling system flushing is essential to

prevent the cooling system from clogging

up with salt, sand, or dirt. In addition, fog-

ging of the engine is mandatory to pre-

vent excessive engine damage due to

rust. Perform the flushing and fogging at

the same time.

WARNING

EWM00090

● 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 10–15

minutes in neutral position.

8. Just prior to turning off the engine, quickly

spray “Yamaha Stor-Rite Engine Fogging

Oil” (Part No. LUB-STRRT-12-00) alter-

nately into each carburetor or the fogging

hole of the silencer cover, if equipped.

When properly done, the engine 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.

1. Water surface

2. Lowest water level

ZMU02051

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