Operation
38
TIP:
When the main switch is turned to “
” (start) with the
clip removed from the engine shut-off switch, the buzzer
will sound.
Except the single type, if the clip is not installed to the en-
gine shut-off switch, the buzzer will sound when the
Start/Stop button is pressed.
Except the single type, if one of the engines has started, it
can be stopped by pressing the Start/Stop button on the
All Start/Stop switch panel.
EMU36511
Checks after starting engine
EMU41361
Cooling water
Check for a steady flow of water from the cooling water pilot
hole. A continuous flow of water from the cooling water pilot
hole shows that the water pump is pumping water through
the cooling water passages.
TIP:
When the engine is started, there may be a slight delay be-
fore water flows from the cooling water pilot hole.
NOTICE
ECM02251
If water is not flowing out of the cooling water pilot hole
at all times while the engine is running, overheating and
serious damage could occur. Stop the engine and check
whether the cooling water inlet on the lower case or the
cooling water pilot hole is blocked. Consult your
Yamaha dealer if the problem cannot be located and
corrected.
EMU27671
Warming up engine
EMU47820
Procedure for warming up engine
After the engine has started, warm up the engine until the en-
gine speed settles at idling speed.
The engine warm-up indicator “
” appears while the engine
is being warmed up and goes off when warming-up is fin-
ished.
EMU36532
Checks after engine warm up
EMU36542
Shifting
While the boat is tightly moored, and without applying throt-
tle, confirm that the engine shifts smoothly into forward and
reverse, and back to neutral.
EMU41821
Stop switches
Perform the following procedure to check that the main
switch and engine shut-off switch operate properly.
Check that the engine stops when the main switch is
turned to the “
” (off) position, or press the Start/Stop
button.
Check that the engine stops when the clip is pulled from
the engine shut-off switch.
Check that the engine cannot be started with the clip re-
moved from the engine shut-off switch.
EMU47432
Operating the port, center, and starboard
outboard motors
The outboard motor to be used can be selected using the
main switch and Start/Stop button for that outboard motor.
NOTICE
ECM01741
Be sure to tilt the unoperated motor up. Otherwise water
could enter the exhaust pipe due to the wave action,
causing engine trouble.
To start the engine for the outboard motor you want to use
1.
Turn the main switch to “
” (on) for the outboard motor
you want to use. For information about the main switch
positions, see page 23.
1. Cooling water pilot hole
ZMU07331
1
1. Engine warm-up indicator
1. Main switch
1
ON
OFF
START
1
U6GR30E0.book Page 38 Thursday, April 12, 2018 9:28 AM
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2019 Yamaha Motor Corporation, U.S.A.
