steering YAMAHA EX DELUXE 2021 User Guide

Operation
65
traveling at speeds above trolling, you
will have rapidly decreasing ability to
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. EX DELUXE / EX LIMITED: If the RiDE le- ver is squeezed and the handlebars are turned when the watercraft is cruising at
planing speed, the watercraft 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.
EJU44371Stopping 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.
1 Reverse gate
E
1
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Care and storage
78
Steering cable (jet thrust nozzle end)
EX SPORT: Shift cable (reverse gate end)
and ball joint
TIP:
Disconnect the shift cable from the ball joint
before lubricating.
EX DELUXE / EX LIMITED: Shift rod (re-
verse 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 37 for seat removal
and installation procedures and page 42
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.
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Maintenance
81
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 √√ 83
Oil filter Replace √83
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 lever (EX
SPORT) Check exterior and con-
nections, and lubricate
√
—
Shift cable and re-
verse gate (EX
SPORT) Check exterior and con-
nections, and lubricate
√
—
Shift rod and reverse
gate (EX DELUXE /
EX LIMITED)Check exterior and con-
nections, and lubricate √
—
Air filter element Check for damage and
dirt
√
—
Air intake hoses Check for damage, and
check clamps
√
—
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Index
94
Maintenance ............................................ 80
Manufactured date label ............................ 2
Model information ...................................... 3
Multifunction information center .............. 32
Multifunction information center check ... 59
O
Oil pressure warning ................................ 35
Operating in weeded areas ...................... 72
Operating the watercraft .......................... 62
Operating the watercraft in reverse or neutral (EX SPORT / EX DELUXE / EX
LIMITED) ............................................... 66
Operating your watercraft ........................ 60
Operation requirements ........................... 11
P
Periodic maintenance chart ..................... 81
Post-launch checks ................................. 59
Post-operation care ................................. 74
Pre-launch checks ................................... 53
Pre-operation check points ..................... 53
Pre-operation checklist ............................ 51
Primary Identification (PRI-ID) number ...... 1
Pull-up cleats (EX LIMITED) ..................... 39
R
Raising the reverse gate (EX DELUXE / EX LIMITED).......................................... 90
Reboarding grip ....................................... 38
Reboarding step (EX SPORT / EX DELUXE / EX LIMITED) ......................... 38
Recommended equipment ...................... 13
Reverse system checks (EX SPORT) ....... 55
Reverse system (EX SPORT) ................... 28
RiDE lever checks (EX DELUXE / EX LIMITED) ............................................... 56
RiDE lever (EX DELUXE / EX LIMITED) .... 25
Riding position ......................................... 61
Rustproofing ............................................ 78
S
Safe boating rules .................................... 17
Safety equipment check .......................... 58
Seat .......................................................... 37
Seat storage compartment ...................... 41
Shift indicator (EX DELUXE / EX
LIMITED) ............................................... 33 Shift system check (EX DELUXE / EX
LIMITED) ............................................... 59
Shift system (EX DELUXE / EX LIMITED) ............................................... 29
Speedometer ........................................... 32
Start switch .............................................. 24
Starting off ............................................... 70
Starting off from a trailer .......................... 70
Starting the engine on water .................... 61
Steering system ....................................... 25
Steering system checks ........................... 55
Stern drain plug checks ........................... 58
Stern eyes ................................................ 39
Stopping the engine ................................. 62
Stopping the watercraft ........................... 65
Storage compartment checks.................. 57
Storage compartments ............................ 39
Submerged watercraft ............................. 91
Switch checks .......................................... 57
T
Tachometer .............................................. 33
Throttle lever ............................................ 25
Throttle lever checks ................................ 56
Towing the watercraft .............................. 91
Transporting on a trailer ........................... 49
Troubleshooting ....................................... 86
Troubleshooting chart .............................. 86
Turning the watercraft .............................. 64
W
Wakeboarding and water-skiing .............. 16
Water separator ....................................... 26
Water separator check ............................. 54
Watercraft characteristics ........................ 14
Watercraft control functions..................... 24
Watercraft operation functions ................ 28
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