steering YAMAHA EXR 2021 User Guide

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
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