Checks After Starting Engine; Cooling Water; Warming Up Engine; Electric Start And Prime Start Models - Yamaha 90A Owner's Manual

" " (on), wait 10 seconds, then
crank the engine again.
TIP:
When the engine is cold, it needs to be
●
warmed up. For further information, see
page 43.
If the engine is warm and fails to start,
●
open the throttle slightly and try to start the
engine again. If the engine still fails to
start, see page 70.
EMU36510

Checks after starting engine

EMU36520

Cooling water

Check for a steady flow of water from the
cooling water pilot hole. A continuous flow of
water from the pilot hole shows that the wa-
ter pump is pumping water through the cool-
ing passages. If the cooling passages are
frozen, it may take a while for water to start
flowing out of the pilot hole.
ECM01810
NOTICE
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 wheth-
er 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 cor-
rected.
[ECM00192]
Check that no water leaks from the joints be-
tween the exhaust cover, cylinder head, and
body cylinder.
EMU27670
EMU27704

Electric start and prime start models

After starting the engine, allow it to idle for 3
minutes to warm up. Failure to do so will
shorten engine life.
EMU36530

Checks after engine warm-up

EMU36540

Shifting

While tightly moored, and without applying
throttle, confirm that the engine shifts
smoothly into forward and reverse, and back
to neutral.
EMU36980

Stop switches

●
●
●

Warming up engine

Turn the main switch to "
engine stop button and make sure the en-
gine stops.
Confirm that removing the clip from the en-
gine shut-off switch stops the engine.
Confirm that the engine cannot be started
with the clip removed from the engine
shut-off switch.
Operation
ZMU03391
", or press the
43