Operation
61
the battery will be quickly discharged,
thus making it impossible to start the
engine. The starter can also be dam-
aged. If the engine will not start after 5
seconds of cranking, return the main
switch to “
” (on), wait 10 seconds,
then crank the engine again.
[ECM00193]
TIP:
z
When the engine is cold, it needs to be
warmed up. For further information, see
page 61.
z
If the engine is warm and fails to start, open
the throttle slightly and try to start the en-
gine again. If the engine still fails to start,
see page 92.
EMU36511
Checks after starting engine
EMU36524
Cooling water
Check for a steady flow of water from the
cooling water pilot hole. A continuous flow of
water from the pilot hole indicates that the
water pump is pumping water through the
cooling water passages. If the cooling water
passages are frozen, it may take a while for
water to start flowing out of the pilot hole.
NOTICE
ECM01811
If water is not flowing out of the 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 prob-
lem cannot be located and corrected.
EMU27671
Warming up engine
EMU41234
Procedure for warming up engine
1.
After starting the engine, warm up the
engine until the engine speed stabilizes
at idle speed to provide maximum oper-
ating performance and acceleration.
NOTICE:
Failure to do so will shorten
engine life.
[ECM04550]
2.
Check that the low oil pressure-alert indi-
cator remains off.
NOTICE:
If the low oil
pressure-alert indicator blinks after
the engine starts, stop the engine.
Otherwise, serious engine damage
could occur. Consult your Yamaha
dealer.
[ECM02381]
EMU36532
Checks after engine warm up
EMU36542
Shifting
While the boat is tightly moored, and without
applying throttle, confirm that the engine
shifts smoothly into forward and reverse, and
back to neutral.
1. Cooling water pilot hole
Idle speed (in neutral):
700–800 r/min
1
ZMU08095
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2019 Yamaha Motor Corporation, U.S.A.