Cleaning The Outboard Motor; Checking Painted Surface Of Outboard Motor; Periodic Maintenance - Yamaha F150A2 Owner's Manual

cooling the engine, which can cause
serious overheating. Be sure the con-
nector is tightened securely on the fit-
ting after flushing the engine.
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 68.
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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.
1. Air intake
2. Drain the cooling water completely out of
the outboard motor. Clean the body
thoroughly.
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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.
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[ECM00542]
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 mechan-
ic 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.
[ECM01841]
 The power trim and tilt switches operate
1
even when the ignition key is off. Keep
people away from the switches whenev-
er working around the motor. When the
motor is tilted, keep away from the area
under it or between it and the clamp
bracket. Be sure no one is in this area
before operating the power trim and tilt
mechanism.
 Allow the engine to cool before handling
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hot parts or fluids.
 Always completely reassemble the mo-
tor before operation.
Maintenance, replacement, or repair of
the emission control devices and systems
may be performed by any marine engine
repair establishment or individual. All war-
ranty repairs, however, including those to
the emission control system, must be per-
formed by an authorized Yamaha marine
dealership.
Maintenance

Periodic maintenance

WARNING
71