Yamaha WaveRunner SuperJet 2020 Owner'S/Operator'S Manual Download

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Table of contents

General and important labels........... 1

Identification numbers .................... 1

number............................................ 1

Hull Identification Number (HIN).........  1
Engine serial number..........................  1
Manufactured date label ....................  2

Important labels .............................. 3

Warning labels.................................... 4
Other labels ........................................ 5

Safety information............................. 6

Limitations on who may operate

the watercraft ............................... 7

Cruising limitations..........................  7
Operation requirements ..................  9
Recommended equipment ...........  11
Hazard information........................  11
Watercraft characteristics .............  12
Rules of the Road .........................  13
To get more boating safety

information ................................. 17

Enjoy your watercraft

responsibly................................. 18

Description....................................... 19

Watercraft glossary ....................... 19
Location of main components ...... 20

Control function operation ............. 22

Watercraft control functions ......... 22

Equipment operation ...................... 26

Equipment..................................... 26

Hood.................................................  26
Bow rope hole ..................................  27
Stern rope hole.................................  27
Storage pouch..................................  27
Fire extinguisher container ...............  28

Operation and handling
requirements ................................... 30

Fuel and engine oil

requirements.............................. 30

Fuel...................................................  30
2-stroke engine oil............................  30
Why Yamalube .................................  30
Mixing fuel and oil ............................  31
Filling the fuel tank ...........................  31

Draining the bilge water ................ 32

Draining the bilge water on water .... 32

Transporting.................................. 33

First-time operation ........................ 35

Engine break-in............................. 35

Pre-operation checks ..................... 36

Pre-operation checklist .................... 36

Pre-operation check points .......... 38

Pre-launch checks ........................... 38
Post-launch checks.......................... 42

Operation ......................................... 44

Operating your watercraft............. 44

Getting to know your watercraft....... 44
Learning to operate your

watercraft ...................................... 44

Operating positions ..........................  45
Launching the watercraft .................  45
Starting the engine on water ............  45
Stopping the engine .........................  47
Leaving the watercraft......................  47
Operating the watercraft ..................  47
Turning the watercraft ......................  47
Stopping the watercraft....................  49

UF4D15E0.book Page 1 Tuesday, March 19, 2019 4:31 PM

Summary of Contents for WaveRunner SuperJet 2020

Page 1: ...2020 WaveRunner SuperJet OWNER S OPERATOR S MANUAL F4D 28199 15 LIT 18626 12 56 Read this manual carefully before operating this watercraft U S A Edition DIC183 ...

Page 2: ...rth defects or other reproductive harm To minimize exposure avoid breathing exhaust service your vessel in a well ventilated area and wear gloves or wash your hands frequently when servicing this vessel For more information go to www P65warnings ca gov marine Read this manual carefully before operating this watercraft This manual should stay with the WaveRunner if it is sold UF4D15E0 book Page 1 T...

Page 3: ...itua tion which if not avoided could result in death or serious injury NOTICE ECJ00092 A NOTICE indicates special precautions that must be taken to avoid damage to the watercraft or other property TIP A TIP provides key information to make pro cedures easier or clearer EJU40401 Because Yamaha has a policy of continuing product improvement this product may not be exactly as described in this owner ...

Page 4: ...nob 24 Cooling water pilot outlet 24 Water separator 25 Engine overheat warning system 25 Equipment operation 26 Equipment 26 Hood 26 Bow rope hole 27 Stern rope hole 27 Storage pouch 27 Fire extinguisher container 28 Operation and handling requirements 30 Fuel and engine oil requirements 30 Fuel 30 2 stroke engine oil 30 Why Yamalube 30 Mixing fuel and oil 31 Filling the fuel tank 31 Draining the...

Page 5: ...ing the steering friction 60 Adjusting the jet thrust nozzle angle 61 Periodic maintenance chart 63 Checking the spark plugs 64 Lubrication points 65 Checking the fuel filter 65 Adjusting the choke cable 65 Adjusting the carburetor 65 Specifications 67 Specifications 67 Trouble recovery 68 Troubleshooting 68 Troubleshooting chart 68 Emergency procedures 70 Cleaning the jet intake and impeller 70 J...

Page 6: ...mber is stamped on a plate at tached inside the engine compartment See page 26 for hood removal and installation procedures MODEL SJ700B V SuperJet EJU30292 Hull Identification Number HIN The HIN is stamped on a plate attached to the hull on the aft starboard right side EJU40641 Engine serial number The engine serial number is stamped on a plate attached to the engine unit See page 26 for hood rem...

Page 7: ... labels 2 EJU41742 Manufactured date label This label is attached to the muffler See page 26 for hood removal and installation procedures 1 Manufactured date label location UF4D15E0 book Page 2 Tuesday March 19 2019 4 31 PM ...

Page 8: ...important labels 3 EJU30453 Important labels Read the following labels before using this watercraft If have any questions consult a Yamaha dealer 6 3 4 1 2 8 7 9 5 UF4D15E0 book Page 3 Tuesday March 19 2019 4 31 PM ...

Page 9: ...General and important labels 4 EJU35914 Warning labels If any of these labels are damaged or missing contact a Yamaha dealer for replacements 1 3 2 4 5 UF4D15E0 book Page 4 Tuesday March 19 2019 4 31 PM ...

Page 10: ...ral and important labels 5 EJU35927 Other labels The following label indicates the correct direction to upright a capsized watercraft 6 7 8 F2F 6418F 00 9 UF4D15E0 book Page 5 Tuesday March 19 2019 4 31 PM ...

Page 11: ...uide the Riding Instruction card and all labels on the watercraft Also watch the WaveRunner Basic Orientation Video linked to the following QR code https yamahawaverunners com orientation A DVD is also available at your nearest dealer for your convenience These materials should give you an under standing of the watercraft and its opera tion Never allow anyone to operate this water craft until they...

Page 12: ...erate defensively at safe speeds and keep a safe distance away from people objects and other watercraft Do not follow directly behind watercraft or other boats Do not go near others to spray or splash them with water go too close to other boats or go too fast for the traffic condi tions Avoid sharp turns or other maneuvers that make it hard for others to avoid you or un derstand where you are goin...

Page 13: ...ur wa tercraft As with any water sport you should not op erate your watercraft without someone else nearby If you operate further than swim ming distance from shore you should be accompanied by another boat or water craft but make sure you stay a safe dis tance away It s good common sense Never operate in water that is less than 60 cm 2 ft deep from the bottom of the wa tercraft otherwise you incr...

Page 14: ...reseeable impacts a hel met might reduce your injuries in a collision with a boat or other obstacle A helmet may have potential safety haz ards as well Falling into the water could risk the chance of the helmet catching wa ter commonly known as bucketing and the resulting strain on your neck could cause choking severe and permanent neck injuries or death A helmet could also increase the risk of an...

Page 15: ...r swimmers and stay away from swimming areas Swimmers are hard to see and you could accidentally hit someone in the water 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 boa...

Page 16: ...ha dealer or the U S Coast Guard 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 EJU30851 Hazard information When transporting or storing your water craft always turn the fuel cock knob to OFF otherwise gasoline may overflow from the carburetor Never start the ...

Page 17: ... thrust will produce some movement whenever the engine is running There is no neutral position Keep away from the intake grate while the engine is on Items such as long hair loose clothing or PFD straps can become entan gled in moving parts resulting in severe in jury or drowning Never insert any object into the jet thrust nozzle while the engine is running Severe injury or death could result from...

Page 18: ... duty to continue its course and speed except to avoid an immediate collision When you maintain your direction and speed the other vessel will be able to determine how best to avoid you Give way vessel The vessel which does not have the right of way has the duty to take positive and timely action to stay out of the way of the stand on vessel Normally you should not cross in front of the vessel wit...

Page 19: ...you are passing another vessel you are the give way vessel This means that the other vessel is expected to maintain its course and speed You must stay out of its way until you are clear of it Likewise if another vessel is passing you you should maintain your speed and direction so that the other vessel can steer itself around you Other special situations There are three other rules you should be a...

Page 20: ...system of buoyage Simply put buoys and markers have an arrangement of shapes colors num bers and lights to show which side of the buoy a boater should pass on when navigat ing in a particular direction The markings on these buoys are oriented from the perspec tive of being entered from seaward the boat er is going towards the harbor Red buoys are passed on your starboard right side when proceeding...

Page 21: ...restricted areas danger areas and general information Remember markings may vary by geograph ic location Always consult local boating au thorities before riding your watercraft in unfamiliar waters UF4D15E0 book Page 16 Tuesday March 19 2019 4 31 PM ...

Page 22: ...learning course available to the public Upon successful completion of 80 percent or bet ter the user can request a certificate of com pletion by mail or can download one immediately The Online Boating Safety Course provided by the Boat US Founda tion is approved by the National Association of State Boating Law Administrators NASB LA and recognized by the United States Coast Guard This course meets...

Page 23: ...ese is unavoidable ride slowly and obey all laws Proper maintenance is necessary to ensure that the exhaust emission and sound levels of your watercraft will continue to be within reg ulated limits You have the responsibility to make sure that the recommended mainte nance in this owner s operator s manual is carried out Remember pollution can be harmful to the environment Do not refuel or add oil ...

Page 24: ...r sur face but you are still traveling through the water There is a wake Planing speed Planing is a faster speed The watercraft is more level and is skimming on top of the water There is a wake Bow The front end of the watercraft Stern The rear end of the watercraft Starboard The right side of the watercraft when facing forward Port The left side of the watercraft when facing forward Bilge water W...

Page 25: ...ole 2 Steering pole cover 3 Bow rope hole 4 Fuel filler cap 5 Cooling water pilot outlet 6 Hood 7 Hood latch 8 Handlebar 9 Storage pouch 10 Riding tray 11 Stern rope hole 12 Jet thrust nozzle 13 Ride plate 14 Jet intake 15 Drive shaft 16 Intake grate UF4D15E0 book Page 20 Tuesday March 19 2019 4 31 PM ...

Page 26: ...Start switch 6 Throttle lever 7 Engine shut off cord lanyard 8 Engine stop switch 9 Engine shut off switch 10 Fuel tank 11 Battery 12 Silencer 13 Spark plug Spark plug cap 14 Water separator 15 Muffler 16 Fuel filter 17 Electrical box UF4D15E0 book Page 21 Tuesday March 19 2019 4 31 PM ...

Page 27: ...al starting or unauthorized op eration by children or others EJU41051 Start switch NOTICE ECJ01361 Do not run the engine for more than 15 seconds on land without supplying water otherwise the engine could overheat The start switch green button starts the en gine when the switch is pushed Release the start switch as soon as the en gine starts to run If the engine does not start in 5 seconds release...

Page 28: ...avel 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 The angle of the jet thrust nozzle can be ad justed to suit operator preference See page 61 for information on adjusting the jet ...

Page 29: ...erve is made available Turn the fuel cock knob to this position if you run out of fuel while operating the watercraft When this occurs refuel as soon as possible and be sure to turn the fuel cock knob back to ON EJU31203 Choke knob The choke knob can be operated to supply a richer air fuel mixture that is required to start a cold engine To use the choke Pull the choke knob out Push the choke knob ...

Page 30: ...osen 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 EJU31665 Engine overheat warning system If the engine temperature rises significantly the engine overh...

Page 31: ...t it with the lock pin 2 Turn the latch knob to the OPEN posi tion and then pull up on the hood latch to unlatch the hood 3 Grasp the hood using the handgrips pro vided at the front and rear of the hood Lift the hood up and to the rear to re move it 1 Steering pole 1 Lock pin 1 Hood latch 2 Hood latch knob 1 Handgrip LOCK OPEN 1 2 UF4D15E0 book Page 26 Tuesday March 19 2019 4 31 PM ...

Page 32: ...ttach a rope to the watercraft when transporting mooring or towing it in an emergency See page 72 for information on towing the watercraft EJU36012 Stern rope hole The stern rope hole is used to attach a rope to the watercraft when mooring it EJU31676 Storage 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 othe...

Page 33: ...ll the hood in its original position EJU41004 Fire extinguisher container The fire extinguisher container is located on the hood To open the fire extinguisher container 1 Lift the steering pole and support it with the lock pin 2 Grasp the tab pull the band to the rear and then pull it up 3 Lift the fire extinguisher container about 30 degrees from the storage position NOTICE Do not force the fire ...

Page 34: ... and then securely install the fire extinguisher container cap by tightening it until it stops 2 Lower the container on the hood to its storage position and secure it with the band 3 While holding the steering pole move the lock pin to the stowed position and then lower the steering pole 1 Fire extinguisher container cap UF4D15E0 book Page 29 Tuesday March 19 2019 4 31 PM ...

Page 35: ...t be used in this water craft All ethanol blends containing more than 10 ethanol can cause fuel system damage or engine performance problems Yamaha does not recommend gasohol con taining methanol because it can cause fuel system damage and engine performance problems EJU31873 2 stroke engine oil If YAMALUBE 2 W engine oil is not available another 2 stroke engine oil with an NMMA certified TC W3 ra...

Page 36: ...ft in a well ventilated area and in a horizontal position 3 Remove the hood and then check the fuel level See page 26 for hood removal and installation procedures 4 Loosen the fuel filler cap and remove it 5 Slowly add fuel to the fuel tank 6 Stop filling when the fuel level just reach es the bottom of the filler tube Do not fill up the filler tube Because fuel expands when it heats up heat from t...

Page 37: ...on water To completely re move the bilge water remove the watercraft from the water and wipe up any remaining moisture in the engine compartment with a dry cloth Jet vacuum bilge draining system While the watercraft is operating bilge water in the engine compartment is drawn in by the vacuum that is generated in the jet pump and discharged from the watercraft through the jet thrust nozzle To drain...

Page 38: ...ransporting the watercraft on a trailer secure the bow rope hole and stern of the watercraft to the trailer with ropes or tie downs Use a rubber shock cord to secure the steering pole to the watercraft NOTICE Do not secure the steering pole with ropes or tie downs and do not secure it to the trailer Also do not transport the water craft with the steering pole up Otherwise the steering pole could b...

Page 39: ...peration and handling requirements 34 where they touch the body of the water craft to avoid scratches or damage ECJ00633 1 Rubber shock cord 2 Tie down UF4D15E0 book Page 34 Tuesday March 19 2019 4 31 PM ...

Page 40: ... 1 See page 31 Mixing fuel and oil and Filling the fuel tank for in formation on filling the fuel tank 2 Launch the watercraft and start the en gine See page 45 for information on starting the engine 3 For the first 5 minutes operate with the engine at idling speed 4 For the first tankful of fuel squeeze the throttle lever slowly and operate at 3 4 throttle or less 5 Fill the fuel tank once more w...

Page 41: ...r Check the engine compartment for bilge water 39 Battery Check the battery connections and electrolyte level 39 Steering system Check the steering system for proper operation 39 Throttle lever Check the throttle lever for proper operation Check the throttle lever free play 40 Engine shut off cord lan yard Check the engine shut off cord lanyard for dam age 41 Switches Check the start switch engine...

Page 42: ...ion checks should be made each time the water craft is used POST LAUNCH CHECKS Cooling water pilot outlet Check that water is discharged from the cooling water pilot outlet while the engine is running 43 ITEM ROUTINE PAGE UF4D15E0 book Page 37 Tuesday March 19 2019 4 31 PM ...

Page 43: ...em checks WARNING EWJ00382 Leaking fuel can result in fire or explosion Check for fuel leakage regularly If any fuel leakage is found the fuel sys tem must be repaired by a qualified me chanic Improper repairs can make the watercraft unsafe to operate Make sure that there is no damage leakage or other problem in the fuel system Check Carburetor for leakage Fuel filler cap and seal for damage Fuel ...

Page 44: ...minals and breather hose are not damaged and that the battery leads and breather hose are connect ed properly WARNING Fire or explosion could result if the breather hose is dam aged obstructed or not connected prop erly EWJ00452 Make sure that the electrolyte level is be tween the minimum and maximum level marks WARNING Never operate the wa tercraft if the battery does not have suffi cient power t...

Page 45: ...imes to make sure that operation is smooth and unrestricted throughout the whole range and that the free play is not excessive Also make sure that the steering pole does not have any side play EJU32595 Throttle lever checks Operate the throttle lever several times to make sure that operation is smooth through out the whole range Also make sure that the throttle lever returns automatically to its f...

Page 46: ...the engine stop switch and the engine shut off switch for proper operation See pages 22 to 22 for in formation on operating each switch To check the operation of the switches 1 Push the start switch to make sure that the engine starts 2 As soon as the engine starts running push the engine stop switch to make sure that the engine stops immediately 3 Restart the engine and then pull the en gine shut...

Page 47: ...roper specifications EJU40122 Safety equipment check Check that safety equipment meeting the ap plicable regulations is on board EJU32353 Hull and deck check Check the hull and deck for damage or other problem EJU32657 Jet intake checks Make sure that the jet intake is not damaged or clogged with weeds or debris If the jet in take is clogged clean it See page 70 for in formation on the jet intake ...

Page 48: ...ng water pilot outlet check Make sure that water is discharged from the cooling water pilot outlet while the engine is running See page 24 for information on the cooling water pilot outlet UF4D15E0 book Page 43 Tuesday March 19 2019 4 31 PM ...

Page 49: ...rientation Video linked to the following QR code https yamahawaverunners com orientation A DVD is also available at your nearest dealer for your convenience These materials should give you an under standing of the watercraft and its operation Remember This watercraft is designed to carry the operator only Never have more than one person on the watercraft at any time EJU32975 Learning to operate yo...

Page 50: ...en you are moving slowly or preparing to stop you will probably need to return to the kneeling position to maintain your balance EJU32822 Launching the watercraft When launching the watercraft make sure that there are no obstacles around you If the watercraft is launched from a trailer someone should make sure that waves do not push the watercraft into the trailer After the watercraft is in the wa...

Page 51: ...ull free when the operator falls off allowing the water craft to continue to run and cause an accident EWJ00582 4 Pull the choke knob all the way out to start a cold engine TIP The choke should not be used when the en gine is warm 5 While lightly squeezing the throttle lever push the start switch green button to start the engine See page 22 for infor mation on operating the start switch WARNING Do...

Page 52: ... the watercraft remove the clip from the engine shut off switch to prevent acci dental starting or unauthorized operation by children or others EJU41172 Operating the watercraft When the engine is running the watercraft will move forward at trolling speed even if the throttle lever is in the fully closed idle posi tion EJU33245 Turning the watercraft WARNING EWJ00763 Do not release the throttle le...

Page 53: ...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 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...

Page 54: ... obstacle apply throttle and turn in another direction WARNING EWJ00724 Allow adequate stopping distance Stay far enough away from others so you can always safely coast to a stop Take early action to avoid collisions Re member watercraft and other boats do not have brakes Operate defensively at safe speeds and keep a safe distance away from people objects and other watercraft to give you time to s...

Page 55: ...atercraft is less stable when at a stand still or at a slow speed It takes skill to keep the watercraft upright when starting To stabilize the watercraft when accelerating to planing speed maintain a low center of gravity by operating it in the kneeling posi tion Even though it is easier to start in shallow wa ter you must learn deep water boarding first You will inevitably fall off so be sure you...

Page 56: ...con trol EJU33125 Boarding and starting in deep water WARNING EWJ01261 Be sure the operator have practiced boarding from the water while still close to shore before riding A person who has made many unsuccessful attempts to get back on the watercraft may become fa tigued and suffer from exposure increas ing the risk of injury and drowning 1 Swim to the rear of the watercraft Attach the engine shut...

Page 57: ...r a heavy operator to reach planing speed than it will for a light operator EJU33205 Capsized watercraft WARNING EWJ00672 Improper uprighting can cause injury Be sure to shut the engine off by pulling on the engine shut off cord lanyard to remove the clip from the engine shut off switch Do not put your hands in the intake grate If the watercraft capsizes turn it over imme diately To upright the wa...

Page 58: ...herwise pebbles or sand could be sucked into the jet intake causing impeller dam age and engine overheating ECJ00473 4 Get off the watercraft and pull it up on the beach EJU37194 Operating in weeded areas Always avoid using your watercraft in areas where weed growth is thick If operating in weeded areas is unavoidable alternately squeeze the throttle lever and relax your grip on the throttle lever...

Page 59: ...sages to prevent them from clogging with salt sand or dirt Use the Yamaha Watercraft Flush Kit to make flushing easier The flush kit is an optional part To purchase the flush kit contact a Yamaha dealer See the instructions included with the flush kit for proper installation 1 Place the watercraft in a horizontal posi tion 2 Remove the hood See page 26 for hood removal and installation procedures ...

Page 60: ...tment seals with a vinyl protectant such as Yama clean Vinyl Dressing 7 To minimize corrosion spray metallic parts of the hull deck and engine with a rust inhibitor such as Yamalube Silicone Protectant Lubricant 8 Allow the engine compartment to air dry completely before installing the hood 9 Securely install the hood in its original position EJU41632 Battery care If the watercraft will not be use...

Page 61: ...ttery life could be shortened ECJ00242 If distilled water was added check the bat tery voltage It is recommended to have a Yamaha dealer check the battery voltage and charge the bat tery If you charge the battery yourself be sure to read and follow the instructions pro vided with the battery tester and charger you use NOTICE Do not attempt to charge a battery hastily Battery life could be short en...

Page 62: ...re that the battery is securely held in place EJU33484 Long term storage WARNING EWJ00321 Always turn the fuel cock knob to OFF when storing the watercraft otherwise fuel could leak out into the engine or en gine compartment which would create a fire hazard Storage for long periods of time such as win ter storage requires preventive maintenance to ensure against deterioration It is advisable to ha...

Page 63: ... cable carburetor end and choke cable carburetor end Throttle cable throttle lever end Squeeze the throttle lever and remove the seal Spray Yamaha Lube Zall into the out er cable Refit the seal securely 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 ste...

Page 64: ...d 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 Use Yamalube Stor Rite Engine Fogging Oil or an equivalent Keep spraying until the engine stalls or a max imum of 15 seconds WARNING Do not pour or spray gasoline or any sub stance other than a rust inhibitor through the hole in the silencer cover Do not spray flammable ...

Page 65: ...ha dealer or other qualified me chanic A service manual is available for purchase through a Yamaha dealer for owners who have the mechanical skills tools and other equipment necessary to perform mainte nance not covered by this owner s operator s manual EJU33803 Tool kit A tool kit is included with this watercraft Place the tool kit in a waterproof bag and al ways carry it with you whenever you us...

Page 66: ...e steering pole move the lock pin to the stowed position and then lower the steering pole EJU3128A Adjusting the jet thrust nozzle angle The angle of the jet thrust nozzle can be ad justed to two settings to suit operator prefer ence To adjust the jet thrust nozzle angle 1 Remove the two bolts and then remove the steering pole cover 2 Pull back the outer sleeve of the steering cable joint and then...

Page 67: ...steering column cannot be used 5 Securely connect the steering cable joint to the steering cable pivot bolt 6 Securely install the steering pole cover and two bolts in their original positions 1 Steering cable pivot bolt 2 Steering column 1 Nozzle angles 1 Nozzle angles 2 Steering cable pivot bolt positions Standard steering cable pivot bolt posi tion P2 Tightening torque Steering cable pivot bolt...

Page 68: ...ery Page 10 hours 50 hours 100 hours 200 hours 6 months 12 months 12 months 24 months Spark plugs Check clean replace 64 Lubrication points Lubricate 58 Intermediate housing Lubricate 65 Fuel system Check Fuel filter Check 65 Check replace Fuel tank Check clean Carburetor Check adjust Engine idling speed Check adjust 66 Carburetorthrottle shaft Check Bilge strainer Clean Impeller Check Jet thrust ...

Page 69: ...ctrode portion is significantly discolored if electrode ero sion becomes excessive if carbon and other deposits are excessive or if the spark plug gap is not within the specified range replace the spark plug TIP When the engine is operating normally the color of the spark plug electrode portion will be a medium to light tan To install a spark plug 1 Wipe off any dirt from the threads insu lator an...

Page 70: ...if necessary EJU34442 Adjusting the choke cable Check that the choke cable is properly ad justed To adjust the choke cable 1 Pull the choke knob out until it stops and then release the knob The knob should not move 2 If the choke knob moves back on its own tighten the choke knob adjusting nut slightly If the knob is difficult to move loosen the adjusting nut slightly EJU34464 Adjusting the carbure...

Page 71: ...g speed as part of the usual maintenance routine EJU34472 Adjusting the engine idling speed 1 Place the watercraft in the water 2 Start the engine and warm it up for 1 to 2 minutes 3 While using a diagnostic tachometer turn the throttle stop screw to adjust the engine idling speed to specification Turn the throttle stop screw clockwise to in crease the engine idling speed or coun terclockwise to d...

Page 72: ...oling system Water Starting system Electric Ignition system C D I Spark plug NGK B7HS Spark plug gap 0 6 0 7 mm 0 024 0 028 in Battery capacity 12 V 19 Ah Charging system Flywheel magneto Drive unit Propulsion system Jet pump Jet pump type Axial flow single stage Impeller rotation Counterclockwise Jet thrust nozzle angle P1 14 4 14 4 P2 17 3 17 3 Fuel and oil Recommended fuel Regular unleaded gaso...

Page 73: ...ed 55 Terminal corroded Clean or replace 55 Starter motor Faulty Have serviced by Yamaha dealer Engine does not start Starter motor turns over Fuel cock Turned to OFF Turn fuel cock knob to ON 24 Fuel Empty Refill as soon as pos sible 31 Stale or contaminat ed Have serviced by Yamaha dealer Fuel tank Water or dirt present Have serviced by Yamaha dealer Spark plug Fouled or defective Replace 64 Spa...

Page 74: ...n or damaged Have serviced by Yamaha dealer Electrical wir ing Loose electrical con nections Have serviced by Yamaha dealer Carburetor Incorrect idle adjust ment Have serviced by Yamaha dealer Clogged Have serviced by Yamaha dealer 65 Watercraft slow or loses power Cavitation Jet intake clogged Clean 70 Impeller damaged or worn Have serviced by Yamaha dealer 70 Engine over heated Jet intake clogge...

Page 75: ...engine will overheat and may seize NOTICE If weeds or debris gets caught in the jet intake do not operate the water craft above trolling speed until they have been removed ECJ00654 If there is any sign that the jet intake or impel ler is clogged with weeds or debris return to shore and check the intake and impeller Al ways stop the engine before beaching the watercraft 1 Place a suitable clean clo...

Page 76: ... to the negative jumper cable 1 Connect the positive jumper cable to the positive battery terminals of both batteries 2 Connect one end of the negative jumper cable to the negative battery terminal of the booster battery 3 Connect the other end of the negative jumper cable to an unpainted bolt on the cylinder head 4 Start the engine and then disconnect the jumper cables by reversing the steps abov...

Page 77: ...omes inoperative in the water it can be towed to shore To tow the watercraft Use a towline that is three times the com bined length of the towing boat and the wa tercraft 1 Securely attach the towline to the bow rope hole of the watercraft being towed 2 Ride the watercraft with your body weight supported on the riding tray Hold on to the handlebars in order to balance the watercraft and keep the b...

Page 78: ...r far enough to drain the bilge water from the engine compartment NOTICE Turning the watercraft on its side with the hood removed could cause damage to the steering pole Use two people to pro vide enough support to make sure that the steering pole is not damaged ECJ00702 4 Turn the watercraft upright again 5 Have the watercraft serviced by a Yamaha dealer as soon as possible NOTICE Be sure to have...

Page 79: ...ft is sold as is without any warranties expressed or implied regardless of the in tended use The purchaser of this watercraft which is intended for competition use is responsible for all costs of service and or repair UF4D15E0 book Page 74 Tuesday March 19 2019 4 31 PM ...

Page 80: ...nguisher container 28 Fire extinguisher container checks 42 Flushing the cooling water passages 54 Fuel 30 Fuel and engine oil requirements 30 Fuel cock knob 24 Fuel filter checking 65 Fuel level check 38 Fuel system checks 38 Fuel tank filling 31 Fuse replacing 71 G Getting to know your watercraft 44 Glossary watercraft 19 H Hazard information 11 Hood 26 Hood check 42 Hull and deck check 42 Hull ...

Page 81: ...23 Steering pole check 40 Steering system 23 Steering system checks 39 Stern rope hole 27 Stopping the engine 47 Stopping the watercraft 49 Storage pouch 27 Storage pouch checks 41 Submerged watercraft 73 Switch checks 41 T Throttle lever 23 Throttle lever checks 40 To get more boating safety information 17 Tool kit 60 Towing the watercraft 72 Transporting 33 Troubleshooting 68 Troubleshooting cha...

Page 82: ...UF4D15E0 book Page 77 Tuesday March 19 2019 4 31 PM ...

Page 83: ...Genuine Yamaha Accessories will fit right and perform right right out of the box Yamalube Take care of your Yamaha with legendary Yamalube oils lubricants and care products They re formulated and approved by the toughest judges we know the Yamaha engineering teams that know your Yamaha from the inside out GenuineYamaha Service Manuals Get the same factory manual for your vehicle that the technicia...

Page 84: ...Printed on recycled paper Printed in Japan April 2019 0 4 1 CR DIC183 ...

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Yamaha WaveRunner SuperJet 2020, Owner'S/Operator'S Manual

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