2021 YAMAHA EXR steering

Pre-operation checks
54
the watercraft if the battery does not have
sufficient power to start the engine or if it
shows any other signs of decreased pow-
er. Loss of battery power may leave you
stranded.
[EWJ01241]
Make sure that the battery is securely held in
place.
EJU32614Steering system checks
Turn the handlebars to the right and left sev-
eral times to make sure that operation is
smooth and unrestricted throughout the
whole range, and that the free play is not ex-
cessive.
Turn the handlebars as far as possible to the
right and left to make sure that the jet thrust
nozzle moves as the handlebars are turned,
and that there is no difference between the right and left fully turned positions of the jet
thrust nozzle.
EJU43213RiDE lever checks
Operate the RiDE lever several times to make
sure that operation is smooth throughout the
whole range. Also, make sure that the RiDE
1
Negative (–) battery terminal: Black lead
2 Positive (+) battery terminal: Red lead
1
2
Difference between fully turned posi-
tions of jet thrust nozzle (distances A
and B):
Maximum 5 mm (0.20 in)
UF4L72E0.book Page 54 Thursday, June 18, 2020 1:29 PM

Operation
62
(idle) position. (See page 28 for shift system
operation procedures.)
EJU43423Turning the watercraftEWJ01783
Do not release the throttle lever when
trying to steer away from objects—as
with other powerboats, you need throt-
tle to steer. A collision could result in se-
vere injury or death.
When operating at higher speeds, make
gradual turns or slow down before turn-
ing. Sharp high-speed turns may cause
the watercraft to slide sideways or spin,
throwing the operator and passenger(s)
overboard, which could cause an injury.
Take early action to avoid collisions. The
RiDE system is not a braking device for
avoiding dangerous situations.
Steering control depends on the combination
of handlebar position and the amount of
throttle.
Water sucked in through the intake grate is
pressurized by the impeller in the jet pump.
As the pressurized water is expelled from the
pump through the jet thrust nozzle, it creates
thrust to move and steer the watercraft. The
higher the engine speed, the more thrust pro-
duced.
The amount of jet thrust, in addition to the po-
sition of the handlebars, determines how
sharply you turn.
A. More throttle produces higher thrust, sothe watercraft will turn more sharply.
B. Less throttle produces lower thrust, so the watercraft will turn more gradually.
C. Releasing the throttle lever completely produces only minimum thrust. If you are
traveling at speeds above trolling, you
will have rapidly decreasing ability to
1“F” (Forward position)
1
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Operation
63
steer without throttle. You may still have
some turning ability immediately after re-
leasing the throttle lever, but once the
engine slows down, the watercraft will no
longer respond to handlebar input until
you apply throttle again or you reach
trolling speed.
At trolling speed, the watercraft can be
turned gradually by handlebar position
alone using just the amount of thrust
available at idle.
D. If the engine is stopped while riding, there is no thrust. The watercraft will go
straight even though the handlebars are
turned.
You need throttle to steer.
E. If the RiDE lever is squeezed and the handlebars are turned when the water-
craft is cruising at planing speed, the wa- tercraft will turn gradually while slowing
down.
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 (see condition C above).
The OTS system assists in turning by con-
tinuing to supply some thrust while the water-
craft is decelerating, but you can turn more
sharply if you apply throttle while turning the
handlebars. The OTS system does not func-
tion below planing speeds or when the en-
gine 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.
EJU43253Stopping the watercraft
The watercraft is not equipped with a sepa-
rate braking system. The watercraft slows
down by water resistance or, when operating
in reverse, by the water jet. The watercraft
slows down as soon as the throttle lever is re-
leased, but will coast for a distance before
fully stopping. If you are not sure you can
stop in time before hitting an obstacle, apply
throttle and turn in another direction.
From full speed, the watercraft comes to a
complete stop due to water resistance in ap-
1 Reverse gate
E
1
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Care and storage
75
Steering cable (jet thrust nozzle end)
Shift rod (reverse gate end) and ball joint
TIP:
Disconnect the shift rod from the ball joint be-
fore lubricating.
EJU44790Rustproofing
Rustproofing the hull, deck, and engine
Spray metallic parts of the hull, deck, and en-
gine with a rust inhibitor.
Rustproofing the internal engine compo-
nents
Rustproof the internal engine components
with a rust inhibitor.
To rustproof the internal engine components:
(1) Remove the seat and fire extinguisherholder. (See page 36 for seat removal and installation procedures and page 41
for information on the fire extinguisher
holder.)
(2) Remove the plastic tie that is fastening the fuel hose to the holder on the star-
board side of the air filter case.
(3) Release the hooks on the port side of the air filter case, and remove the air filter
case cover.
(4) Spray a rust inhibitor into the intake opening for 3 seconds. WARNING! Do
not spray flammable rust inhibitor
products on engine surfaces while the
1 Hook
2 Air filter case cover
3 Fuel hose
4 Holder
5 Plastic tie
1
23
4
5
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Maintenance
78
EJU43101Periodic maintenance chart
The periodic maintenance chart gives general guidelines for periodic maintenance. Have a
Yamaha dealer perform the checks in the following chart. However, maintenance may need to be performed more frequently depending on your operating conditions. If you have any
questions, consult a Yamaha dealer.
This “ √” mark indicates items to be checked and serviced by a Yamaha dealer.
Item OperationInitial Thereafter every
Page
10 hours 50 hours
or 12
months *1 100
hours or 12
months *1 200
hours or 24
months *1
Fuel line Check fuel hoses and
clamps
√
—
Fuel filler cap/Wa-
ter separator Check O-rings for cracks
and deformation
√
—
Fuel tank Check installation and
straps
√
—
Water inlet strainer Check for clogs and dam-
age
√
—
Cooling water hos-
es Check for damage and
leakage, and check
clamps
√
—
Engine oil Replace √√ 80
Oil filter Replace √80
Spark plugs Check √√ —
Battery Check state of charge,
terminals and bands
√
—
Battery leads Check terminals √—
Steering master Check operation and for
looseness
√√
—
Steering cable Check exterior and con-
nections, and lubricate
√
—
Shift rod and re-
verse gate Check exterior and con-
nections, and lubricate
√
—
Air filter element Check for damage and
dirt
√
—
Air intake hoses Check for damage, and
check clamps
√
—
Throttle body Lubricate throttle valve √—
Exhaust system Check for exhaust leak-
age, and check hoses and
clamps √
—
Breather hose Check
breather hose and
clamps √
—
UF4L72E0.book Page 78 Thursday, June 18, 2020 1:29 PM

Index
90
Manufactured date label ............................ 2
Model information ...................................... 2
Multifunction information center .............. 31
Multifunction information center check ... 57
O
Oil pressure warning ................................ 34
Operating in weeded areas ...................... 69
Operating the watercraft .......................... 61
Operating the watercraft in reverse or neutral ................................................... 64
Operating your watercraft ........................ 59
Operation requirements ........................... 11
P
Periodic maintenance chart ..................... 78
Post-launch checks ................................. 57
Post-operation care ................................. 71
Pre-launch checks ................................... 52
Pre-operation check points ..................... 52
Pre-operation checklist ............................ 50
Primary Identification (PRI-ID) number ...... 1
R
Raising the reverse gate .......................... 86
Reboarding grip ....................................... 37
Reboarding step ...................................... 37
Recommended equipment ...................... 13
RiDE lever................................................. 25
RiDE lever checks .................................... 54
Riding position ......................................... 60
Rustproofing ............................................ 75
S
Safe boating rules .................................... 17
Safety equipment check .......................... 56
Seat .......................................................... 36
Seat storage compartment ...................... 40
Shift indicator ........................................... 32
Shift system ............................................. 28
Shift system check................................... 58
Speedometer ........................................... 31
Start switch .............................................. 24
Starting off ............................................... 67
Starting off from a trailer .......................... 68
Starting the engine on water .................... 60
Steering system ....................................... 25
Steering system checks ........................... 54
Stern drain plug checks ........................... 56 Stern eyes ................................................ 38
Stopping the engine ................................. 61
Stopping the watercraft ........................... 63
Storage compartment checks.................. 56
Storage compartments ............................ 38
Submerged watercraft ............................. 87
Switch checks .......................................... 55
T
Tachometer .............................................. 32
Throttle lever ............................................ 25
Throttle lever checks ................................ 55
Towing the watercraft .............................. 87
Transporting on a trailer ........................... 48
Troubleshooting ....................................... 82
Troubleshooting chart .............................. 82
Turning the watercraft .............................. 62
W
Wakeboarding and water-skiing .............. 16
Water separator ....................................... 26
Water separator check ............................. 53
Watercraft characteristics ........................ 14
Watercraft control functions..................... 24
Watercraft operation functions ................ 28
UF4L72E0.book Page 90 Thursday, June 18, 2020 1:29 PM