2022 YAMAHA JETBLASTER cooling

Table of contents
General and important labels ........... 1Identification numbers .................... 1
Primary Identification (PRI-ID)
number............................................ 1
Craft Identification Number (CIN) ....... 1
Engine serial number.......................... 1
Manufactured date label .................... 2
Model information ........................... 2
Builder’s plate .................................... 2
Important labels .............................. 4
Warning labels.................................... 5
Other labels ........................................ 8
Safety information ............................. 9 Limitations on who may operate the watercraft ............................... 9
Cruising limitations ........................ 10
Operation requirements ................ 11
Recommended equipment ........... 13
Hazard information........................ 14
Watercraft characteristics ............. 14
Wakeboarding and water-skiing ... 16
Safe boating rules ......................... 17
Enjoy your watercraft responsibly ................................. 18
Description....................................... 19 Watercraft glossary ....................... 19
Location of main components ...... 20
Control function operation ............. 24 Watercraft control functions ......... 24
Engine start/stop switch ................. 24
Engine shut-off switch .................... 24
Throttle lever .................................... 24
RiDE lever ........................................ 25
Steering system ............................... 25
Cooling water pilot outlet ................. 25
Water separator................................ 26
Watercraft operation ...................... 27Watercraft operation functions ..... 27
Shift system ..................................... 27
Electric trim system .......................... 29
Instrument operation ...................... 31Multifunction information center ... 31
Information display ........................... 31
Equipment operation ...................... 36Equipment..................................... 36
Seat .................................................. 36
Handgrip........................................... 36
Reboarding grip................................ 37
Reboarding step ............................... 37
Foot chocks...................................... 37
Bow eye............................................ 38
Stern eyes ........................................ 38
Cleat ................................................. 38
Storage compartments .................... 38
Fire extinguisher holder .................... 40
Operation and handling
requirements ................................... 41Fuel requirements ......................... 41
Fuel................................................... 41
Engine oil requirements ................ 43
Engine oil .......................................... 43
Draining the bilge water ................ 45
Draining the bilge water on land....... 45
Draining the bilge water on water .... 45
Transporting on a trailer................ 46
First-time operation ........................ 47 Engine break-in............................. 47
Pre-operation checks ..................... 48
Pre-operation checklist .................... 48
Pre-operation check points .......... 50
Pre-launch checks ........................... 50
Post-launch checks.......................... 55
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Table of contents
Operation ......................................... 57Operating your watercraft ............. 57
Getting to know your watercraft ...... 57
Learning to operate your
watercraft ...................................... 57
Riding position ................................. 58
Launching the watercraft ................. 58
Starting the engine on water ............ 58
Stopping the engine ......................... 59
Leaving the watercraft...................... 59
Operating the watercraft .................. 59
Turning the watercraft ...................... 60
Stopping the watercraft ................... 61
Operating the watercraft in reverse or neutral ...................................... 62
Boarding the watercraft ................... 63
Starting off........................................ 65
Capsized watercraft ......................... 66
Beaching and docking the
watercraft ...................................... 67
Operating in weeded areas .............. 67
After removing the watercraft from the water ....................................... 67
Care and storage............................. 69Post-operation care ...................... 69
Flushing the cooling water
passages....................................... 69
Cleaning the watercraft .................... 70
Battery care ...................................... 70
Long-term storage ........................ 72
Cleaning ........................................... 72
Lubrication ....................................... 72
Rustproofing..................................... 73
Maintenance .................................... 75 Maintenance.................................. 75
Periodic maintenance chart ............. 76
Engine oil and oil filter ...................... 78
Specifications .................................. 79Specifications................................ 79 Trouble recovery ............................. 81
Troubleshooting ............................ 81
Troubleshooting chart ...................... 81
Emergency procedures ................ 84
Cleaning the jet intake and
impeller ......................................... 84
Raising the reverse gate .................. 85
Jumping the battery ......................... 85
Towing the watercraft....................... 86
Submerged watercraft ..................... 86
Index................................................. 88
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Description
20
EJU31012
Location of main components
Exterior
123456
735
89
13121110
1Hood
2 Handlebar
3 Footwell
4 Seat (page 36)
5 Foot chock (page 37)
6 Boarding platform
7 Fuel filler cap (page 41)
8 Handgrip (page 36) 9
Reboarding grip (page 37)
10 Sponson
11 Gunwale
12 Cooling water pilot outlet (page 25)
13 Bow eye (page 38)
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Control function operation
25
The throttle lever returns automatically to its
fully closed (idle) position when released.
EJU43343RiDE lever
When the RiDE lever is squeezed, the reverse
gate lowers and the watercraft starts moving
in reverse. If the watercraft is moving forward,
the watercraft gradually slows down until it
stops, and then the watercraft starts moving
in reverse.
When the RiDE lever is released, it automati-
cally returns to its fully closed (idle) position
and the reverse gate moves to the neutral po-
sition.
EJU31263Steering system
By turning the handlebars in the direction you
wish to travel, the angle of the jet thrust noz-
zle is changed, and the direction of the water-
craft is changed accordingly.Since the strength of the jet thrust determines
the speed and degree of a turn, throttle must
always be applied when attempting a turn,
except at trolling speed.
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. The OTS system assists in
turning by continuing to supply some thrust
while the watercraft is decelerating, but you
can turn more sharply if you apply throttle
while turning the handlebars. The OTS sys-
tem does not function below planing speeds
or when the engine 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.EJU35975Cooling water pilot outlet
When the engine is running, some of the
cooling water that is circulated in the engine
1
Throttle lever
1 RiDE lever
1
1
1Handlebar
2 Jet thrust nozzle
1
2
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Control function operation
26
is discharged from the cooling water pilot
outlet.
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
cooling water pilot outlet. If water is not being
discharged from the outlet, stop the engine
and check the jet intake for clogging. (See
page 84 for information on the jet intake.)
TIP
It will take about 60 seconds for the water
to reach the outlet after the engine is start-
ed.
Water discharge may not be constant
when the engine is running at idling speed.
If this occurs, apply a little throttle to make
sure that water discharges properly.
EJU40323Water separator
The water separator prevents water from en-
tering the fuel tank by collecting any water
that has entered the fuel tank breather hose if
the watercraft was capsized.
If water has collected in the water separator,
drain it by loosening the drain screw.
To drain water from the water separator:
(1) Place a drain pan or dry cloth under thewater separator.
(2) Gradually loosen the drain screw to drain the water. Catch the draining water in the
drain pan or soak it up with the dry cloth
so that it does not spill into the engine
compartment. If any water spills into the
watercraft, be sure to wipe it up with a
dry cloth.
(3) Securely tighten the drain screw until it stops.
1Cooling water pilot outlet
11Water separator
2 Drain screw
2
1
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Instrument operation
35
warning is activated, the maximum engine
speed is limited.
If the engine overheat warning is activated,
immediately reduce the engine speed, return
to shore, and then make sure that water is
being discharged from the cooling water pilot
outlet while the engine is running. If there is
no discharge of water, stop the engine, and
then check the jet intake for clogging. (See
page 84 for information on the jet intake.)
NOTICE: If you cannot locate and correct
the cause of the overheating, consult a
Yamaha dealer. Continuing to operate at higher speeds could result in severe en-
gine damage.
[ECJ00042]
EJU44691
Check engine warning
If a sensor malfunction or a short circuit is de-
tected, the check engine warning indicator
and the “WARNING” indicator light blink, and
the buzzer sounds intermittently for 30 sec-
onds. If the engine is stopped after the check en-
gine warning is activated, the tachometer
portion of the information display will show
the hour meter and error code alternately at
3-second intervals.
If the check engine warning is activated, im-
mediately reduce the engine speed, return to
shore, and have a Yamaha dealer check the
engine.
1
Error code
1
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Operation and handling requirements
43
EJU40291
Engine oil requirementsEJU44531Engine oilECJ00282
Use only 4-stroke engine oil. Usage of 2-
stroke engine oil could result in severe en-
gine damage.
Why Yamalube
YAMALUBE oil is a Genuine YAMAHA Part
born of the engineers’ passion and belief that
engine oil is an important liquid engine com-
ponent. We form teams of specialists in the
fields of mechanical engineering, chemistry,
electronics and track testing, and have them
develop the engine together with the oil it will
use. Yamalube oils take full advantage of the
base oil’s qualities and blend in the ideal ba-
lance of additives to make sure the final oil
clears our performance standards. Thus,
Yamalube mineral, semisynthetic and syn- thetic oils have their own distinct characters
and value. Yamaha’s experience gained over
many years of research and development
into oil since the 1960’s helps make
Yamalube the best choice for your Yamaha engine. Checking the engine oil level
EWJ00341
Engine oil is extremely hot immediately af-
ter the engine is turned off. Coming in con-
tact with or getting any engine oil on your
clothes could result in burns.
ECJ00392
Do not run the engine with too much or
not enough oil in the oil tank, otherwise
the engine could be damaged.
Make sure that debris and water do not
enter the oil tank filler hole. Debris and
water in the engine oil can cause serious
engine damage.
TIP
When checking the engine oil level on land,
the engine must be running while water is
being supplied to the cooling water pas-
sages. (See “Flushing the cooling water
passages” on page 69 for information on
supplying water.)
When checking the engine oil level on wa-
ter, moor the watercraft so that it will not
drift away.
To check the engine oil level:
(1) With the engine stopped, place the wa-
tercraft in a precisely level position on
land or launch the watercraft.
(2) Look in all directions, and then start the engine. (See page 58 for information on
starting the engine.)
(3) Run the engine at idling speed for 6 mi- nutes or more. Run the engine an addi-
tional 5 minutes if the ambient
temperature is 20 °C (68 °F) or less.
(4) Stop the engine.
Recommended engine oil:
YAMALUBE 4W or 4-stroke motor oil
Recommended engine oil type: SAE 10W-30, 10W-40, 20W-40,
20W-50
Recommended engine oil grade: API SG, SH, SJ, SL
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Pre-operation checks
49
POST-LAUNCH CHECKS
TIP
To ensure safety and reliability, pre-operation checks should be made each time the water-
craft is used.
Seat Check that the seat is securely installed. 36
ITEM ROUTINE PAGE
Cooling water pilot outlet Check that water is discharged from the cooling
water pilot outlet while the engine is running.
55
Multifunction information
center Check the multifunction information center for prop-
er operation.
55
Shift system Check the shift system for proper operation. 56
Engine idling speed Check the engine idling speed. 56
ITEM ROUTINE PAGE
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