2018 YAMAHA SUPERJET roof

Table of contents
Capsized watercraft ......................... 48
Beaching the watercraft ................... 49
Operating in weeded areas .............. 49
After removing the watercraft from
the water ....................................... 49
Care and storage............................. 50
Post-operation care ...................... 50
Flushing the cooling water
passages....................................... 50
Cleaning the watercraft .................... 51
Battery care ...................................... 51
Long-term storage ........................ 54
Cleaning ........................................... 54
Lubrication ....................................... 54
Rustproofing..................................... 55
Maintenance .................................... 56
Maintenance.................................. 56
Tool kit.............................................. 56
Adjusting the steering friction .......... 56
Adjusting the jet thrust nozzle
angle ............................................. 57
Periodic maintenance chart ............. 59
Checking the spark plugs ................ 60
Lubrication points ............................ 61
Checking the fuel filter ..................... 61
Adjusting the choke cable................ 61
Adjusting the carburetor................... 61
Specifications .................................. 63
Specifications................................ 63
Trouble recovery ............................. 64
Troubleshooting ............................ 64
Troubleshooting chart ...................... 64
Emergency procedures ................. 66
Cleaning the jet intake and
impeller ......................................... 66
Jumping the battery ......................... 67
Replacing the fuse ........................... 67
Towing the watercraft ...................... 68
Submerged watercraft ..................... 69
Index................................................. 70
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Safety information
12
Avoid being hit by another boat. You
should always take the responsibility to
watch for traffic; other boaters may not be
watching for you. If they do not see you, or
if you maneuver more quickly than other
boaters expect, you risk a collision.
Maintain a safe distance from other boats
and watercraft, and also watch for ski
ropes or fishing lines. Obey the “Safe boat-
ing rules” and be sure to check behind you
before making a turn. (See “Safe boating
rules” on page 14.)
EJU30841
Recommended equipment
The following items should be carried on
board your watercraft:
Sound-signaling device
You should carry a whistle or other sound-
signaling device that can be used to signal
other boats.
Visual distress signals
It is recommended that a pyrotechnic de-
vice, which is approved by the appropriate
authorities, be stored in a waterproof con-
tainer on your watercraft. A mirror can also
be used as an emergency signal. Contact a
Yamaha dealer for more information.
Watch
A watch is helpful so you will know how
long you have been operating the water-
craft.
Towline
A towline can be used to tow a disabled
watercraft in an emergency.
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Equipment operation
24
To install the hood:
(1) Position the hood on the deck so that the
two projections at the front of the hood fit
under the two stays on the deck.
(2) Push down on the hood latch, and then
turn the knob to the “LOCK” position to
securely lock the hood in place.
(3) While holding the steering pole, move
the lock pin to the stowed position, and
then lower the steering pole.
EJU36003Bow rope hole
The bow rope hole is used to attach a rope to
the watercraft when transporting, mooring, ortowing it in an emergency. (See page 68 for
information on towing the watercraft.)
EJU36012Stern rope hole
The stern rope hole is used to attach a rope
to the watercraft when mooring it.
EJU31676Storage pouch
The storage pouch is located on the bottom
of the hood.
Use the storage pouch to store the own-
er’s/operator’s manual, tool kit, and other
small items. The storage pouch is not de-
signed to be waterproof. If you carry objects
that must be kept dry, put them in a water-
proof bag.
To remove the storage pouch:
(1) Remove the hood. (See page 23 for hood
removal and installation procedures.)
LOCKOPEN
1Bow rope hole
1Stern rope hole
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Care and storage
55
Steering cable ball joint (handlebar end)
and steering cable inner wire (handlebar
end)
To access the steering cable ball joint (han-
dlebar end) and steering cable inner wire
(handlebar end), remove the steering pole
cover. (See step 1 in “Adjusting the jet
thrust nozzle angle” on page 57 for infor-
mation on removing the steering pole cov-
er.)
Steering cable ball joint (jet thrust nozzle
end) and steering cable inner wire (jet
thrust nozzle end)
EJU40944Rustproofing
NOTICE
ECJ01361
Do not run the engine for more than 15
seconds on land without supplying water,
otherwise the engine could overheat.
Spray metallic parts of the hull and engine
with a rust inhibitor.
To rustproof the internal engine components:
(1) Remove the hood. (See page 23 for hood
removal and installation procedures.)
(2) Loosen the silencer cap and remove it.
(3) Make sure that the area around the wa-
tercraft is clear, and then start the engine
in a well-ventilated area.
(4) Run the engine at a fast idle.
(5) Quickly spray as much rust inhibitor as
possible through the hole in the silencer
cover. Keep spraying until the engine
stalls (or a maximum of 15 seconds).
WARNING! Do not pour or spray gaso-
line, or any substance other than a
rust inhibitor through the hole in the
silencer cover. Do not spray flamma-
ble rust inhibitor products on engine
surfaces while the engine is hot. Oth-
erwise, a fire or explosion could oc-
cur.
[EWJ00302]
(6) Securely install the silencer cap by tight-
ening it until it stops. NOTICE: Be sure
to install the silencer cap securely af-
ter fogging the engine, otherwise wa-
ter could enter the engine and cause
damage.
[ECJ00153]
(7) Securely install the hood in its original
position.
1Silencer cap
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Maintenance
56
EJU33769
Maintenance
Periodic checks and lubrication will keep
your watercraft in the safest and most effi-
cient condition possible. Therefore, make
sure to carry out the periodic maintenance.
Safety is an obligation of the watercraft own-
er. Proper maintenance must be carried out
to keep the exhaust emission and sound lev-
els within the regulated limits. The most im-
portant points of watercraft inspection and
lubrication are explained on the following pa-
ges.
See a Yamaha dealer for genuine Yamaha re-
placement parts and optional accessories
designed for your watercraft.
Remember, failures that are the result of the
installation of parts or accessories which are
not qualitatively equivalent to genuine
Yamaha parts are not covered by the limited
warranty.
Maintenance, replacement, or repair of
the emission control devices and system
may be performed by any marine SI engine
repair establishment or individual. War-
ranty repair, however, must be performed
at an authorized Yamaha marine dealer-
ship.
WARNING
EWJ00312
Be sure to turn off the engine when you
perform maintenance unless otherwise
specified. If you are not familiar with ma-
chine servicing, this work should be done
by a Yamaha dealer or other qualified me-
chanic.
EJU33803Tool kit
A tool kit is included with this watercraft. Pla-
ce the tool kit in a waterproof bag and alwayscarry it with you whenever you use the water-
craft.
EJU34337Adjusting the steering friction
The amount of friction in the steering can be
adjusted to suit operator preference.
To adjust the steering friction:
(1) Lift the steering pole and support it with
the lock pin.
1Tool bag
2Screwdriver
310/12 mm box wrench
4Garden hose adapter
5Spark plug (one included for each cylinder)
614/21 mm box wrench
7Pliers
810/12 mm open-end wrench
1Steering pole
2Lock pin
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Index
71
P
Periodic maintenance chart ..................... 59
Post-launch checks ................................. 39
Post-operation care ................................. 50
Pre-launch checks ................................... 35
Pre-operation check points ..................... 35
Pre-operation checklist ............................ 33
Primary Identification (PRI-ID) number ...... 1
R
Recommended equipment ...................... 12
Rustproofing ............................................ 55
S
Safe boating rules .................................... 14
Safety equipment check .......................... 39
Spark plugs, checking ............................. 60
Start switch .............................................. 19
Starting off ............................................... 45
Starting the engine on water .................... 41
Steering friction, adjusting ....................... 56
Steering pole ............................................ 20
Steering pole check ................................. 37
Steering system ....................................... 20
Steering system checks ........................... 36
Stern rope hole ........................................ 24
Stopping the engine ................................. 43
Stopping the watercraft ........................... 45
Storage pouch ......................................... 24
Storage pouch checks ............................. 38
Submerged watercraft ............................. 69
Switch checks .......................................... 38
T
Throttle lever ............................................ 20
Throttle lever checks ................................ 37
Tool kit ..................................................... 56
Towing the watercraft .............................. 68
Transporting ............................................. 30
Troubleshooting ....................................... 64
Troubleshooting chart .............................. 64
Turning the watercraft .............................. 43
W
Water separator ....................................... 22
Water separator check............................. 36
Watercraft characteristics ........................ 13
Watercraft control functions .................... 19
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