Yamaha F40F Owner's Manual download pdf (Page 82)

Maintenance

76

fresh water supply, and then connect it

to the garden hose connector.

3. With the engine off, turn on the water tap

and let the water flush through the cool-

ing passages for about 15 minutes. Turn

off the water and disconnect the garden

hose adapter from the garden hose con-

nector.

4. Reinstall the garden hose connector

onto the fitting on the bottom cowling.

Tighten the connector securely.

NOTICE: Do not leave the garden

hose connector loose on the bottom

cowling fitting or let the hose hang

free during normal operation. Water

will leak out of the connector instead

of cooling the engine, which can

cause serious overheating. Be sure

the connector is tightened securely

on the fitting after flushing the en-

gine.

[ECM00541]

TIP:

 When flushing the engine with the boat in

the water, tilting up the outboard motor un-

til it is completely out of the water will

achieve better results.

 For cooling system flushing instructions,

see page 72.

EMU44340

Cleaning the outboard motor

When cleaning the outboard motor, the top

cowling must be installed.

1. Wash the exterior of the outboard motor

using fresh water. NOTICE: Do not

spray water into the air intake.

[ECM01840]

2. Drain the cooling water completely out of

the outboard motor. Clean the body thor-

oughly.

EMU28461

Checking painted surface of

outboard motor

Check the outboard motor for scratches,

nicks, or flaking paint. Areas with damaged

paint are more likely to corrode. If necessary,

clean and paint the areas. A touch-up paint is

available from your Yamaha dealer.

EMU2848B

Periodic maintenance

WARNING

EWM01871

These procedures require mechanical

skills, tools, and supplies. If you do not

have the proper skills, tools, or supplies

to perform a maintenance procedure,

have a Yamaha dealer or other qualified

mechanic do the work.

The procedures involve disassembling

the motor and exposing dangerous parts.

To reduce the risk of injury from moving,

hot, or electrical parts:

 Turn off the engine and keep the key(s)

and engine shut-off cord (lanyard) with

you when you perform maintenance un-

less otherwise specified.

1. Air intake

1

ZMU07861

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