Remove the seat and check the engine compartment for water. Page 86 Wipe the hull, handlebars, and jet unit dry with a clean cloth. Spray a rust inhibitor, such as Yamaha Silicone Protectant and Lubricant, on metallic parts to minimize corrosion. Allow the engine compartment to air dry completely before installing the seat.
Page Transporting EJU Transporting When transporting the watercraft on a trailer, secure the tie downs to the trailer through the bow eye and stern eye. Also, wrap the ropes or tie downs with tow- els or rags where they touch the body of the watercraft to avoid scratching or Page 88 —MEMO— Page Storage It is advisable to have the watercraft serviced by a Yamaha dealer prior to stor- age.
However, the following procedures can be performed by the owner. Page 91 1. Put the watercraft on land in a horizontal position. Remove the rear seat and seat storage compartment.
See page for seat removal and installation procedures. Open the flushing hose connector cap 1, and then insert the garden hose adapter 2 into the flushing hose connector 3 and turn it until it is securely connected. Page Lubrication 3. Remove the air filter case cover and air filter element. Spray a rust inhibitor such as Yamaha Stor-Rite Fogging Oil into each intake opening 3 for 3 seconds. Install the air filter element and air filter case cover.
Page Fuel System Change clothing if gasoline spills on it. Top off the fuel tank with fresh gasoline and add one ounce of Yamaha Fuel Stabi- lizer and Conditioner to each gallon of fuel. Page Battery 12 volts. Specific gravity for reference : 1. If you maintain the battery yourself, be sure to read and follow the instructions provided with the battery tester and charger you use.
Page Cleaning The Watercraft 2. Rinse the engine and bilge area with fresh water. Drain off all water and wipe up remaining moisture with clean, dry rags. Wax the hull with a non-abrasive wax such as Yamaha Silicone Wax. Page Maintenance And Adjustments Remember that failures that are the result of the installation of parts or accessories which are not qualitatively equivalent to gen- uine Yamaha parts are not covered by the limited warranty.
Check the fuel system for leaks, cracks, or malfunctions. If any problem is found, consult a Yamaha dealer. Check: Fuel tank for water or dirt. Fuel tank cap seal for damage. Page Fuel Filter The fuel filter should be checked, cleaned, or replaced every 12 months or every hours of operation. Have a Yamaha dealer check, clean, or replace the fuel filter if necessary. Page Changing The Engine Oil The oil filter should be replaced every two years or every hours of opera- tion.
Have a Yamaha dealer replace the oil filter if necessary. It is recommended to have a Yamaha dealer change the engine oil. However, if Page If oil is leaking or the oil pressure warn- ing indicator comes on when the engine is running, immediately turn the engine off and have a Yamaha dealer check the watercraft. Continuing to operate the engine under such conditions could cause severe engine damage. To check the air filter: 1. Page Inspecting The Steering Cable 1 on the bracket, and that the arm 2 makes contact with the reverse gate.
If the reverse gate does not reach the cor- rect positions, have a Yamaha dealer ser- vice it. EJU Inspecting and adjusting the Page Inspecting The Qsts Mechanism 4. Check that the angle of the jet thrust nozzle changes when the selector is shifted from neutral to bow up or bow down. If the mechanism does not work properly, have a Yamaha dealer service it. Have a Yamaha dealer service the watercraft. Remove and inspect the spark plug peri- odically; heat and deposits will cause the spark plug to slowly break down and erode.
Page NOTE: Wipe off any water on the spark plug or inside the cap before installing the spark plug cap. Push the spark plug cap down until it is securely installed. Page Lubrication Points Lubrication points To keep moving parts sliding or rotating smoothly, coat them with water-resistant grease. Spray a rust inhibitor into the outer cable.
Reinstall the QSTS cable housing. Shift cable lever end Page Shift cable reverse gate end Intermediate housing Using a grease gun, fill the intermediate housing with water-resistant grease through the grease nipple 1.
Grease quantity: Initial 10 hours or 1 month: Page Inspecting The Battery EJU Inspecting the battery Check the level of the battery electrolyte and make sure that the negative and posi- tive leads are securely tightened. Elec- trolyte contains sulfuric acid. Avoid contact with skin, eyes or clothing. Battery life could be shortened. It is recommended to have a Yamaha dealer charge the battery.
If you charge the battery yourself, carefully read the battery charger instructions before charging and fol- low the points below. Page Adjusting The Fuel Injection System Yamaha dealer who has the professional knowledge and experience to do so.
If the settings are changed by someone who does not have the necessary technical knowledge, poor engine performance and damage may result. To replace the fuse: 1.
Remove the cap 2. Replace the fuse 4 with the spare fuse 5 of the correct amperage by using the special tool 3 on the reverse side of the cap. Page Troubleshooting If you have any trouble with your watercraft, use this section to check for the possible cause. EJU Troubleshooting chart Page Emergency Procedures EJU Emergency procedures EJU Cleaning the jet intake and impeller If weeds or debris get caught in the intake or impeller, cavitation can occur, causing jet thrust to decrease even though engine speed rises.
If this condition is allowed to continue, the engine will overheat and may seize. Page 2. Remove any weeds or debris from around the drive shaft, impeller, pump housing, and jet thrust nozzle. If debris is difficult to remove, consult your Yamaha dealer.
If trav Page Jumping The Battery EJU Jumping the battery If the watercraft battery has run down, the engine can be started using a volt bat- tery and jumper cables.
Connect one end of the negative — jumper cable 2 to the negative — termi- nal of the booster battery 3. If the watercraft must be towed in an emergency using a towline, the operator should ride the watercraft, holding onto the handlebars. Page Submerged Watercraft EJU Submerged watercraft If the watercraft is submerged or flooded with water, follow the procedure below and consult a Yamaha dealer as soon as possi- ble.
Failure to do so may result in serious engine damage! In an emergency: 1. Beach the watercraft and remove the stern drain plugs to drain the water from the engine compartment. Page —MEMO— Addi- craft Education and Training initiative and Page Enjoy Your Watercraft Responsibly EJU Enjoy your watercraft responsibly You share the areas you enjoy when riding your watercraft with others and with nature. So your enjoyment includes a responsibility to treat these other people, and the lands, waters, and wildlife with respect and courtesy.
Whenever and wherever you ride, think of yourself as the guest of those around you. Page 28 —MEMO— Page Features And Functions Throttle lever To keep proper balance while facing to the rear to watch the skier. Page 31 1 Fuel tank filler cap 8 Stern drain plugs 2 Stern eye Use to drain water in the bilge when the water- Use to attach rope for transporting or mooring. Use to check watercraft operation.
To install the rear seat: Insert the projections on the front of the seat into the stays on the deck, and then push the rear of the seat down to lock it in place securely.
Remove the rear seat. Pull the front seat latch 1 up, and then pull the seat off. To install the front seat: 1. Insert the projections on the front of the seat into the stays on the deck, and then push the rear of the seat down to lock it in place. To open the hood, pull the hood release lever up, and then lift the hood up.
To close the hood, push the hood down to lock it in place. Page Engine Shut-Off Switch EJU Engine shut-off switch Insert the clip 1, on the end of the engine shut-off cord 2, under the engine shut-off switch 3 black button. The engine will stop automatically when the clip is removed from the switch, such as if the operator falls off the watercraft.
NOTE: The engine will not start when the clip is removed from the engine shut-off switch or if the throttle lever is squeezed. EJU Cooling water pilot outlet This watercraft is equipped with cooling water pilot outlets. It will activate at planing speeds should you attempt to steer the watercraft after releas- ing the throttle lever.
Page Tilt Lever EJU Tilt lever The tilt lever 1 is located in front of the glove compartment and is used to adjust the tilt of the handlebars. To adjust the tilt, pull the tilt lever up, and then move the handlebars up or down to the desired position. Page Shift Lever EJU Shift lever The shift lever is located on the starboard right side of the watercraft and is used to control the reverse gate, which allows the watercraft to move into reverse or forward.
When in the reverse position, the water- craft can be launched from a trailer, or backed up out of tight spots where you can- not turn around easily.
Operating the QSTS selector changes the angle of the jet thrust nozzle vertically. This changes the trim angle of the watercraft. Bow down puts more of the bow in the water. This position will also help the watercraft get up on plane more quickly. EJU Multifunction meter This meter contains the following func- tions for help and convenience in operating the watercraft.
EJU Speedometer The meter shows the watercraft speed against water. NOTE: To switch the speedometer display between kilometers and miles, push the speedometer display select switch 1 for at least 2 seconds. If the voltage displayed is low, beach the watercraft and, if necessary, have a Yamaha dealer check the charging system.
EJU Check engine warning indicator Page Fuel Warning Indicator At the same time, the engine speed reduction control is activated. If this occurs, reduce the engine speed, beach the watercraft, and have a Yamaha dealer check the oil pressure. NOTE: Press any button on the multifunction meter to stop the buzzer. Continuing to operate at higher speeds could result in severe engine damage. Page Storage Compartments EJU Storage compartments A front storage compartment, a glove compartment, and seat storage compart- ments are provided.
NOTE: Make sure that the storage compartments are properly secured before operating the watercraft. The storage compartments are not designed to be waterproof.
If you carry objects that must be kept dry, such as the manuals, put them in a waterproof bag. To open the glove compartment, slide the latch 1 toward you, and then lift up the lid.
To close the glove compartment, push the lid down until it locks securely. NOTE: A removable beverage holder 3 is provided in the glove compartment.
Conventional 2-stroke engine oil cannot be used. The engine utilizes an electronic fuel injection system to deliver the optimal air- fuel mixture ratio required by the engine. With optimal combustion conditions, this system is able to increase startability and improve fuel economy. Gasohol containing methanol is not rec- ommended by Yamaha because it can cause fuel system damage or engine perfor- mance problems. Avoid getting water or other contaminants in the fuel tank. Contaminated fuel can cause poor running or engine damage.
Remove the rear and front seats. See pages and for seat removal and installation procedures. See the accompanying text in this chapter for details on how to perform the checks.
WARNING If any item in the pre-operation check list is not working properly, have it inspected and repaired before operating the watercraft, otherwise an accident could occur. To ventilate the engine compartment remove the rear and front seats. Allow the engine compartment to remain open for a few minutes to allow any fuel vapors to escape.
Do not run the engine with too much or not enough oil in the oil tank. Oil could flow into the air filter case and the engine could be damaged. Page 59 Checking the engine oil level again: 1.
Launch the watercraft, and then start the engine. Normally the water separator is empty. The water separator retains any water entering through the fuel tank breather hose if the watercraft is capsized. If water remains in the water separator, drain it by removing the drain screw 2. This watercraft is equipped with a conven- tional jet vacuum bilge draining system and an electric bilge draining system.
The elec- tric bilge draining system is operated when the engine is running. When excess water reaches the water inlet of the electric bilge pump, the water is discharged from the elec- tric bilge pilot outlet 1 at the stern.
Check that the battery leads are tightened securely and there is no corrosion on the battery terminals. Loss of battery power may leave you stranded. Page Fire Extinguisher Always carry a fire extinguisher on board. A fire extinguisher is not standard equip- ment with this watercraft.
If you do not have one, contact a Yamaha dealer or a fire extinguisher dealer to obtain one meeting the proper specifications. Page 64 EJU Throttle Squeeze and release the throttle lever several times to make sure that there is no hesitation in its travel.
It should be smooth over the complete range, and spring back to the idle position when released. Make sure that the reverse gate goes down to its stopper position when the shift lever is pulled up. Also, make sure that the reverse gate goes up to its stopper position when shift lever is pushed down.
Page Jet Unit EJU Jet unit Carefully check the jet intake for weeds, debris, or anything else that might restrict the intake of water. If the intake is clogged, cavitation could occur, reducing jet thrust, and possibly damaging the jet pump. In some cases, the engine may overheat because of lack of cooling water, and dam- age to the engine could result. Page 67 EJU Switches Check the start switch 1, the engine stop switch 2, and the engine shut-off switch 3 for proper operation.
To check these switches, place the water- craft in the water to provide adequate cooling. Start the engine, and then pull the engine shut-off cord 5 to remove the clip 4 from the engine shut-off switch. Con- sult your Yamaha dealer about any con- trol function fully understand.
Failure to understand how controls work could cause an accident or prevent you from avoiding an accident. Page Launching The Watercraft 2. For the first 5 minutes, run the engine at trolling speed only.
A cooling water strainer is incorporated into the jet pump, which prevents the cooling water pas- sages from clogging. Foam filling in the inner hull reinforces the hull and also serves as a floatation. To reduce intake noise, intake boxes are equipped near the hood. To reduce exhaust noise, a resonator is equipped to the exhaust system. Front storage compartment: 75 L The glove compartment is equipped with a removable beverage holder.
The speedometer display can be switched between kilometers and miles. By connecting a computer to the ECM, quick detection of malfunctions and parts that are difficult to check such as the fuel injectors and fuel pump module can be checked easily. The sensors installed on the engine include the cam position sensor, temperature sensor, pulser coil, throttle position sensor, intake air temperature sensor, and intake air pressure sensor.
Page 26 Two pulser coils are used: one for cylinders 1 and 4 and one for cylinders 2 and 3. Pulser coil Pulser coil for cylinders Page 29 Normal mode Except for the controls mentioned earlier, fuel injection is normal sequential injection. Basic ignition timing and each correction value control ignition timing.
Basic ignition timing and each correction value determine actual ignition timing. Cooling water, which is drawn in by the jet pump, flows to the engine, oil tank, and exhaust pipes.
Cooling water, which cools the engine oil in the oil tank, enters the exhaust joint. A pressure control valve limits cooling water pressure that enters the engine.
A scavenge pump is used to collect oil from the engine and deliver it to the oil tank. A feed oil pump is used to send oil from the oil tank to the various engine components.
Cylinder head cover Exhaust camshaft Cylinder head Page Engine Oil Inspection Engine oil inspection 1.
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