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UF4E12E0.book Page 34 Thursday, June 15, 2017 1:12 PM

Control function operation

EJU31262 in response to handlebar input until you apply
Steering system
throttle again or you reach trolling speed.
By turning the handlebars in the direction you
EJU35975
wish to travel, the angle of the jet thrust noz- Cooling water pilot outlet
zle is changed, and the direction of the water- When the engine is running, some of the
craft is changed accordingly. cooling water that is circulated in the engine
is discharged from the cooling water pilot
1
outlet.
1

1 Cooling water pilot outlet
2 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
1 Handlebar cooling water pilot outlet. If water is not being
2 Jet thrust nozzle
discharged from the outlet, stop the engine
Since the strength of the jet thrust determines and check the jet intake for clogging. (See
the speed and degree of a turn, throttle must page 98 for information on the jet intake.)
always be applied when attempting a turn, TIP:
except at trolling speed.  It will take about 60 seconds for the water
This model is equipped with the Yamaha En- to reach the outlet after the engine is start-
gine Management System (YEMS) that in- ed.
cludes an off-throttle steering (OTS) system.  Water discharge may not be constant
It will activate at planing speeds should you when the engine is running at idling speed.
attempt to steer the watercraft after releasing If this occurs, apply a little throttle to make
the throttle lever. The OTS system assists in sure that water discharges properly.
turning by continuing to supply some thrust EJU40323
while the watercraft is decelerating, but you Water separator
can turn more sharply if you apply throttle The water separator prevents water from en-
while turning the handlebars. The OTS sys- tering the fuel tank by collecting any water
tem does not function below planing speeds that has entered the fuel tank breather hose if
or when the engine is off. Once the engine the watercraft was capsized.
slows down, the watercraft will no longer turn

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