Cooling Water Pilot Outlet; Water Separator - Yamaha 2017 WaveRunner EX Owner's/Operator's Manual

zle is changed, and the direction of the water-
craft is changed accordingly.
1 Handlebar
2 Jet thrust nozzle
Since the strength of the jet thrust determines
the speed and degree of a turn, throttle must
always be applied when attempting a turn,
except at trolling speed.
This model is equipped with the Yamaha En-
gine Management System (YEMS) that in-
cludes an off-throttle steering (OTS) system.
It will activate at planing speeds should you
attempt to steer the watercraft after releasing
the throttle lever. The OTS system assists in
turning by continuing to supply some thrust
while the watercraft is decelerating, but you
can turn more sharply if you apply throttle
while turning the handlebars. The OTS sys-
tem does not function below planing speeds
or when the engine is off. Once the engine
slows down, the watercraft will no longer turn
in response to handlebar input until you apply
throttle again or you reach trolling speed.
Control function operation
1
2
EJU35975

Cooling water pilot outlet

When the engine is running, some of the
cooling water that is circulated in the engine
is discharged from the cooling water pilot
outlet.
1
1 Cooling water pilot outlet
There is a cooling water pilot outlet on the
port (left) side of the watercraft. To check for
proper operation of the cooling system, make
sure that water is being discharged from the
cooling water pilot outlet. If water is not being
discharged from the outlet, stop the engine
and check the jet intake for clogging. (See
page 92 for information on the jet intake.)
TIP:
It will take about 60 seconds for the water

to reach the outlet after the engine is start-
ed.
Water discharge may not be constant

when the engine is running at idling speed.
If this occurs, apply a little throttle to make
sure that water discharges properly.
EJU40323

Water separator

The water separator prevents water from en-
tering the fuel tank by collecting any water
that has entered the fuel tank breather hose if
the watercraft was capsized.
27