Exciter 220 Jet Boat Owner s Manual

Jet Boat Owners Manual

LIT186260318

TO THE OWNER

Thank you for choosing a Yamaha Jet Boat. This Owners Manual contains information you will need for proper operation, maintenance, and care. A thorough understanding of these simple instructions will help you to obtain maximum enjoyment from your new Yamaha. If you have any questions about the operation or maintenance of your Jet Boat, please consult a Yamaha dealer.
YAMAHA MOTOR CORPORATION, U.S.A. IMPORTANT MANUAL INFORMATION:
In this manual, information of particular importance is distinguished in the following ways:
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
Because Yamaha has a policy of continuing product improvement, this product may not be exactly as described in this Owners Manual. Specifications are subject to change without notice. This manual should be considered a permanent part of this Jet Boat and should remain with it even if the boat is subsequently sold.
________________ Failure to follow WARNING instructions could result in severe injury or death to the machine operator, a bystander, or a person inspecting or repairing the Jet Boat.

CAUTION:

_______________ A CAUTION indicates special precautions that must be taken to avoid damage to the Jet Boat. NOTE:_________________________ A NOTE provides key information to make procedures easier or clearer.

WARNING

EXCITER JET BOAT (EXT1100W) OWNERS MANUAL
1997 by Yamaha Motor Corporation, U.S.A. 1st Edition, November 1997 All rights reserved. Any reprinting or unauthorized use without the written permission of Yamaha Motor Corporation, U.S.A. is expressly prohibited. Printed in U.S.A.

LIT-18626-03-18

JET BOAT SAFETY INFORMATION

FEATURES & FUNCTIONS

OPERATION

MAINTENANCE & CARE

TROUBLESHOOTING & SPECIAL PROCEDURES

CONSUMER INFORMATION

Chapter 1 SAFETY INFORMATION
IDENTIFICATION NUMBER RECORDS..1-1 Primary I.D. Number...1-1 Hull Identification Number (H.I.N.)...1-1 Engine Number....1-1 IMPORTANT LABELS...1-2 Location...1-2 Labels....1-3 SAFETY INFORMATION...1-7 Limitations On Who May Operate the Jet Boat..1-7 Required Equipment...1-8 Additional Equipment Recommendations..1-8 Apparel....1-9 Operational Requirements...1-9 Jet Boat Characteristics..1-11 Cruising Limitations...1-12 Night Operation...1-13 Waterskiing...1-14 BASIC BOATING RULES...1-15 Rules of the Road...1-15 Steering and Sailing and Sound Signals...1-15 Rules When Encountering Vessels..1-16 Other Special Situations...1-17 TO GET MORE BOATING SAFETY INFORMATION.1-19 Boating Education...1-19 ACCIDENT REPORTING...1-20 ENJOY YOUR JET BOAT RESPONSIBLY..1-20

SAFETY INFORMATION

IDENTIFICATION NUMBER RECORDS
Record your Primary I.D., H.I.N., and engine numbers in the spaces provided to assist you in ordering spare parts from your Yamaha Jet Boat dealer. Also record and keep these I.D. numbers in a separate place in case your Jet Boat is stolen.

PRIMARY I.D. NUMBER

The Primary I.D. number is stamped on a label attached to the inside of the engine compartment.
HULL IDENTIFICATION NUMBER (H.I.N.)
The H.I.N. is stamped on a plate attached to the right rear corner of the hull.

ENGINE SERIAL NUMBER

STARBOARD
The Engine Serial Numbers are stamped on a label attached to the back side of the electrical box.

IMPORTANT LABELS

LOCATION
________________ SEVERE INJURY OR DEATH MAY RESULT IF YOU IGNORE ANY OF THE FOLLOWING SAFETY INFORMATION. Before operating the Jet Boat, read this entire manual, the Operation Instruction card, and all warning labels on the Jet Boat. Also view the Basic Orientation video tape. These materials should give you an understanding of the boat and its operation. Never allow anyone to operate this Jet Boat until they too have read this Owner's Manual, the Operation Instruction card, and all warning labels.
A responsible adult must supervise operation of this boat by minors. Many states have minimum age and education requirements. Always check state and local boating laws before you operate the Jet Boat.
LIMITATIONS ON WHO MAY OPERATE THE JET BOAT

You might also consider gloves designed for water sports to help protect hands during operation, as well as while launching and docking your boat. You may want to consider eye protection. Water spray could get in your eyes in some circumstances which could affect your vision.

OPERATIONAL REQUIREMENTS

Operating your Jet Boat requires skills acquired only through practice over a period of time. Take the time to learn the basic operating techniques well, before attempting more difficult maneuvers. Your Jet Boat is capable of truly exhilarating performance. Dont push your boat to the limits beyond your ability. The operator should have at least 10 hours of experience with the boat before any abrupt acceleration, sharp turns, or operation at full speed. NEVER operate the boat after consuming alcohol or taking drugs.
You should consider wearing slipresistant deck shoes or water shoes for more secure footing while boating. Waterskiers and others engaging in water sports behind the boat must wear a wetsuit. A wetsuit can help protect against strong streams of water from the jet nozzles or impact from the water surface. These hazards could cause severe injuries to certain body orifices (rectum and vagina). Depending upon operating conditions, you may consider wearing a wetsuit while boating. A wet suit can help protect against hypothermia (low body temperature) when there is water spray coming into the boat, particularly if you are operating in cold water or air temperature.
Always perform the pre-operation checks on page 3-4 before operating to be sure your equipment is working properly. The operator should always attach the engine stop switch lanyard (cable) to his PFD so that the engines will stop if the operator accidentally leaves the helm. Failure to attach the lanyard could result in a runaway boat if the operator is ejected. Be sure the lanyard is not wrapped around the steering wheel or tangled in the controls which would prevent the lanyard from pulling away. To prevent accidental starting of the engine, always remove the lanyard from the stop switch when the engine is not running.
Passengers must always sit in a designated seating area, place feet on the deck, and use the hand grips provided while the boat is in motion.
UNDERWAY SEATING POSITIONS

MAXIMUM 5 PERSONS

Engine stop switch Engine stop switch lanyard Lanyard clipped to PFD
Always watch carefully for swimmers. 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! Always watch for traffic; other boaters may not be watching for you. If they don't see you, or you maneuver more quickly than other boaters expect, you risk a collision.

FUEL LEVEL GUAGE

________________ If the oil level warning indicator comes on, refill with engine oil as soon as possible. The engines will be severely damaged if they are run without oil.

OVERHEAT WARNING SYSTEM

The engine has an overheat warning device. If either engine starts to overheat, the engine speed of the affected engine will be limited to about 3,500 rpm. Each engine is equipped with coolingwater pilot outlets on the starboard side of the hull. Check that water comes out of the outlet while the engine is running, particularly while applying throttle. If you do not see any water at the outlet, cooling water may not be circulating in the engine. If water may be Refer to cedures mation.
is not circulating, something clogging the jet intake grate. the Jet Pump Clean-Out proon page 5-4 for further infor-
________________ If the cause of overheating cannot be found and corrected, take special precautions to avoid major engine damage while you return to shore. SINGLE ENGINE OVERHEATING Shut off the overheating engine and use the properly running engine to return to shore. Operate at "nowake" speed to prevent water from flooding the non-operating engine through the cooling water intake. BOTH ENGINES OVERHEATING If getting a tow from another vessel is not possible, operate both engines just slightly above idle while you return to shore. If you can be towed, refer to "Towing the Jet Boat" on page 5-3.
NOTE: _________________ If water cooling passages on the engines are dry, it will take about 20 seconds for water to reach the pilot outlets after starting.
back in with your finger. If it pops out again, ask your Yamaha dealer to inspect the electrical system.

SWITCHES

1 Blower 2 Bilge Pump 3 ACC
Blower Press this switch to turn on the blower to ventilate the engine compartment. See 3-9 for more information. Bilge Pump Press this switch to activate the bilge pump. See page 3-8. ACC The accessory switch can be used to control an installed accessory.

BREAKERS

ACC 5 Lights 6 Horn
The accessory switch can be used to control an installed accessory. Lights This toggle switch controls the required on-board lighting. Press the switch up to turn on both the bow light and stern light for night running. Press the switch down to operate the stern light alone when at anchor. Put the switch in the middle position to turn off lights. See page 3-9 for more information. Horn Pressing this switch activates the horn. The horn can be used to signal other boats as required by the Rules of the Road (see page 1-15).
Switch Circuit Breakers The electrical circuit for each switch is protected by a circuit breaker. If the button above a switch pops out, push it

ENGINE HOOD

To open the engine hood, lift the latch hook upward and lift the hood. The hood is supported by gas-filled struts. Hood Latch Closing Hood
To close the hood, push the hood down to the closed position. Hood Support Struts

HOOD STRUTS

NOTE: _________________ Make sure the hood is firmly secured with the latch.

Under Hood, Center Tray

STORAGE COMPARTMENTS
There are five on-board storage compartments. Bow Storage

Ski Locker

Under Hood, Port Side
Port Side, behind front seat NOTE: _________________ Make sure all panels and covers are in place prior to launching or driving the Jet Boat.
NOTE: _________________ There is a drain plug in the bottom of the port side storage compartment. Pull the plug out to drain water, and press down firmly to seal. The bilge pump will drain excessive water.

Chapter 3 OPERATION

FUEL REQUIREMENTS....3-1 Gasoline (Petrol)...3-1 Engine Oil....3-2 OIL INJECTION SYSTEM...3-2 GASOLINE (PETROL) AND ENGINE OIL FILLING..3-3 Filling the Gasoline (Petrol)Tank...3-3 Filling the Oil Tank....3-3 PRE-OPERATION CHECKS...3-4 Check List....3-4 Check Points...3-5 OPERATION....3-11 Starting the Engines....3-11 Stopping the Engines...3-14 Break-In (Running-In) Procedure...3-14 DRIVING YOUR JET BOAT...3-15 Getting to Know Your Jet Boat..3-15 Learning to Operate Your Jet Boat..3-15 Boating with Passengers...3-16 Boarding from the Water...3-16 Boarding from a Dock or Landing Jetty..3-17 Turning...3-17 Stopping...3-18 Docking....3-18 Leaving a Dock...3-19 Beaching....3-19 Crossing Waves...3-20 POST-OPERATION CHECKS..3-20 TRAILERING...3-22 Hitch....3-22 Trailering Checklist...3-22 Backing Your Trailer...3-23 Launching...3-24 Loading....3-24 Lifting....3-25

FUEL REQUIREMENTS

GASOLINE (PETROL)
Use regular unleaded 87 octane (R+M 2) gasoline (petrol). ________________ GASOLINE (PETROL) AND ITS VAPORS ARE HIGHLY FLAMMABLE AND EXPLOSIVE! Do not smoke when refueling, and keep away from sparks, flames, or other sources of ignition. Stop engine and turn ignition keys to Off before refueling. Refuel in a well-ventilated area. If the Jet Boat is in the water, be sure it is securely moored to the fueling dock. All passengers must be out of the boat during refueling. Take care not to spill gasoline (petrol). If gasoline (petrol) spills, wipe it up immediately with dry rags. Always properly dispose of gasoline-soaked rags. Avoid overfilling the fuel tank. Stop filling when the fuel level just reaches the bottom of the filler tube. Do not fill up the filler tube because fuel expands as it warms up and could overflow. Tighten the filler cap securely after refueling. If you should swallow some gasoline (petrol), inhale a lot of gasoline (petrol) vapor, or get

ENGINE OIL

Recommended oil: YAMALUBE FOR OUTBOARDS TWO-CYCLE LUBRICANT. If YAMALUBE FOR OUTBOARDS is not available, another 2-cycle engine oil with a NMMA-certified TC-W3 rating may be used.
Oil level sender Oil filter Oil-injection pump
Oil pump bleeder Carburetor Oil level warning light 3-2
Oil tank Oil tank cap Oil return line
GASOLINE (PETROL) AND ENGINE OIL FILLING
FILLING THE GASOLINE (PETROL) TANK FILLING THE OIL TANK
Open the engine hood, then open the oil tank filler cap. Very slowly add engine oil to the oil tank. Stop pouring when the oil just reaches the bottom of the filler neck. Be sure to tighten the cap securely. Open the fuel tank filler cap, and slowly add fuel to the fuel tank. Be careful not to spill fuel or overfill the tank. Stop filling when the fuel just becomes visible in the bottom of the filler tube. Do not top off the tank, because gasoline (petrol) could spill out. Be sure to tighten the cap securely. ________________ Be careful when refueling. Avoid getting water or other contaminants in the fuel tank. Contaminated fuel can cause poor running or engine damage. Fuel tank capacity: 34 US gal (129 lit)
________________ Oil in the bilge is a serious fire hazard. Wipe up any spilled oil immediately and properly dispose oil soaked rags. Do not add gasoline to the oil tank. Fire or explosion could result. Oil tank capacity: 2.6 US gal (10 lit)

PRE-OPERATION CHECKS

WARNING ________________ If any item in the Pre-Operation check is not working properly, have it inspected and repaired before operating the Jet Boat. Otherwise an accident could occur.

PAGE REF.

CHECK LIST
Before Operating this Jet Boat, perform the following checks:

ITEM CHECK

BEFORE LAUNCH OR OPERATION:
STEERING THROTTLE SHIFTING FIRE EXTINGUISHER HULL JET (WATER) INTAKES FUEL SYSTEM FUEL AND ENGINE OIL LEVELS BATTERY DRAINAGE SYSTEM ENGINE COMPARTMENT ENGINE HOOD LIGHTS AND HORN Check for proper steering operation. Check for proper throttle operation. Check for proper shift operation. Check readiness of the extinguisher. Check the hull for damage or cracks before launching. Check that no debris is in the intakes before launching. Check fuel system for leaks. Check fuel and oil level; add as necessary. Check battery condition, mounting, and connection. Check, and remove all water and fuel residue before launching. Be sure drain plugs are tightened. Operate the blower for at least 4 minutes. Open engine hood and check to be sure no gasoline vapors are present. Check that hood latch is secure. Check lights to be sure they operate. Press horn button to be sure it operates. 3-7 3-7 3-7 3-7 3-8 3-9 3-5 3-5 3-5 3-6

Jet Intakes Fuel System

Refer to page 4-10, "FUEL SYSTEM INSPECTION," for correct procedure. Fuel and Engine Oil Levels 1) Turn the main switch key to ON. Wait for the fuel gauge needle to stop moving, then note the fuel level. Add fuel if necessary. NOTE: _________________ The fuel level is most accurate when the boat is sitting level on the trailer or in the water. 2) Open the engine hatch, then check oil level in the tank. Add as necessary. Battery The Jet Boat uses one battery. Check the battery condition and the battery electrolyte level. Make sure connections are tight and that battery is properly secured. ________________ The battery must always be fully charged and in good condition. Loss of battery power may leave you stranded. Never operate the Jet Boat if the battery does not have sufficient power to start the engine or if it shows any other signs of decreased power.
Before launching the Jet Boat, carefully check the jet intakes under the boat for weeds, debris, or anything else that might restrict the intake of water. If the intakes are clogged, cavitation could occur, reducing jet thrust, and possibly damaging jet pump parts. In some cases, the engine may overheat because of lack of cooling water, and damage could result. Engine cooling water is fed to the engine by the jet pumps (see pages 2-11). Refer to Jet Pump Clean-Out procedures on page 5-4 before attempting to remove weeds or debris from the jet intake or impeller areas. ________________ Rotating parts could cause severe injury or death. Before attempting to remove weeds or debris from the jet intake or impeller areas; shut off the engines, remove ignition key, then remove the engine stop switch lanyard from the stop switch.
A drain plug is located at the center of the stern to allow more complete draining when the boat is removed from the water. Engine Compartment and Fuel Compartment Drain Plugs

Drainage System

Self-Bailing Deck Most water which enters the deck area bails automatically out the stern through the large drain hole in the deck. A one-way check valve in the drain prevents water from traveling back to the deck during mooring or while moving in reverse. Bilge Pump

During first 5 hours or 2 tanks of operation, use 50:1 pre-mix fuel (in addition to oil in oil tank). After above period, use straight gasoline (petrol) for normal operation. 1) Before launching: Fill the fuel tank with 50:1 premix fuel. Fill the oil tank with oil (see page 3-3). Launch the boat and start the engine (see page 3-11). 2) First 5 minutes: Run the engine at the lowest possible idling speed. 3) First tankful of fuel: Gradually increase the throttle position during operation, up to a maximum of onehalf throttle. Vary engine speed occasionally. 4) Second tankful of fuel: Fill the tank again with 50:1 premix fuel (in addition to the oil in the oil tank), and proceed with normal operation. Following this tankful of fuel, use straight gasoline in the fuel tank and oil in the oil tank (see page 3-3).

DRIVING YOUR JET BOAT

GETTING TO KNOW YOUR JET BOAT
Operating your Jet Boat requires skills acquired through practice over a period of time. Take the time to learn the basic techniques well before attempting more difficult maneuvers. Boating with your new Jet Boat can be a very enjoyable activity, providing you with hours of pleasure. But it is essential to familiarize yourself with the operation of the Jet Boat to achieve the skill necessary to enjoy boating safely. Before you begin, be sure you have read this Owner's Manual completely and understand the operation of the controls. Pay particular attention to the safety information in Chapter 1. Read all warning and caution labels on your Jet Boat. This Jet Boat is designed to carry one operator and up to four passengers, as long as the total weight of people and cargo does not exceed 930 lb (421 kg). Never have more than five people in the boat.
Know and follow U.S. Coast Guard, state, and local laws when operating your Jet Boat. Select a wide area to learn in, where visibility is good and other boat traffic is light. Keep the proper distance from other boats and vehicles. Do not operate where people are swimming. Always attach the engine stop switch lanyard to your personal flotation device before operating. You and all other passengers must always wear a U.S. Coast Guard approved personal flotation device when riding in the Jet Boat. You should consider wearing water shoes, eye protection, gloves, and other protective apparel. Water sports increase your risk of injury from contact with your boat, other vessels, docks, rocks, or coral. Waterskiiers must also wear a wetsuit to protect against jet thrust or impact with the water surface, particularly as speeds increase. Normal swimming attire may not adequately protect you. Grip the wheel firmly and keep both feet on the deck when driving the Jet Boat.

LEARNING TO OPERATE YOUR JET BOAT
Before boating, always perform the Pre-Operation Checks listed on page 3-4. The short time spent checking the machine's condition will reward you with added safety and a more reliable Jet Boat.

BOATING WITH PASSENGERS

When one or more passengers are on board, the boat may handle differently, so operating it requires a higher degree of skill. Remember: Your Jet Boat is designed for one operator and up to four passengers only. Never have more than five people in the Jet Boat. Passengers should sit so the weight in the boat is balanced from side to side as much as possible. If the passenger seat in front of the helm is used, be sure the operators view ahead is not obstructed. Passengers must sit in one of the seats and hold onto the grips while putting both feet on the deck. ________________ When passengers are on board, make sure they are seated and holding on before you start to accelerate. An unprepared passenger could lose balance and fall.

BOARDING FROM THE WATER

________________ Strong streams of water from the jet nozzles can be dangerous, and can result in serious injury when directed at body orifices (rectum and vagina). Do not board from the rear, use swim platform, or swim behind boat if engines are running. Stay away from the back of the boat when engines are running.
1) Be sure engines are off, then move to the stern of the boat. Put a foot on the rear boarding step and grab the boarding handles in the swim platform. 2) Climb up onto the swim platform, then climb over the engine hatch and sit in one of the seats provided.
Do not use control levers as grab handles because damage can occur.
BOARDING FROM A DOCK OR LANDING JETTY
1) Board the boat from the side. One person should board at a time by stepping into the boat. Never jump in. Avoid stepping on slick gelcoat surfaces on the boats gunwales, especially if wet. 2) Sit in one of the seats provided and put both feet on the deck.
As you make turns, remember that boats steer from the stern. As you make a turn to the right, for example, the stern of the boat swings to the left. This characteristic is particularly important to understand when maneuvering near obstacles such as docks or buoys.

7. Back the boat out into the water, watching carefully for other boats or obstacles.

LOADING

1. Disconnect the trailer lights from the towing vehicle. 2. Back the trailer down the ramp as close to 90 to the shoreline as you can. If possible, have a second person act as an observer while standing to the side of the boat. Stop when the tops of the trailers fenders are about 3 inches above the waterline. 3. With the boat moving at the slowest idle speed. Use throttle only if necessary for steering ability. Guide the boat onto the support rails. ________________ Using too much throttle can cause the boat to jump over the front of the trailer which can result in injury to the boat operator and bystanders. Use only enough throttle to maneuver the boat into the correct position.
4. Make sure the boat is centered on the support rails and is headed straight for the bow stop (bumper board). Ease the boat forward until the bow rests against the bow stop. 5. Attach and tighten the winch line.

LIFTING

The winch line is not designed to pull the boat onto the trailer. The winch line should not be the only line securing the bow during trailering. Use a separate bow tiedown line along with the winch to secure the boat to the trailer. 6. Pull the trailer up the ramp out of the way of other boaters. Attach the bow and stern tie-downs. Reconnect the trailer lights.
Do not attach lifting cables to the bow eye, cleats, waterski tow eye, or grab handles. Serious damage to the boat can occur. Use only a sling designed specifically for lifting boats. If you need to remove the Jet Boat from the water without a trailer, use these guidelines: Use a sling-type lifting mechanism designed for lifting boats. The sling should be covered with a protective material to prevent damage to the hull gelcoat. Use spreader bars to avoid side stress to the hull that may cause cracks in the gelcoat and fiberglass. Attach guidelines to the bow eye and stern tie-down cleats to control movement of the boat during lifting. Remove all people and all cargo from the boat. Drain any excess water from the bilge using the bilge pump. Be sure all people are standing clear, then lift boat slowly and just far enough to verify that the boat is securely held and properly balanced. If necessary, lower the boat again and adjust the slings. When ready, lift the boat slowly and carefully.
7. Follow the Post-Operation Checks on page 3-20.

Chapter 4 MAINTENANCE AND CARE
STORAGE....4-1 Cooling System Flushing..4-1 Lubrication....4-2 Battery....4-3 Cleaning...4-3 ADJUSTMENT AND MAINTENANCE..4-4 Tool Kit....4-4 Periodic Inspection Chart..4-5 Spark Plug Cleaning and Adjustment...4-6 Grease Points....4-7 Fuel System Inspection..4-10 Fuel Filter....4-11 Fuel Tank....4-11 Oil Injection System Inspection..4-11 Bleeding the Oil Injection Pump...4-12 Carburetor Adjustment...4-12 Steering Cable Inspection...4-13 Throttle Cable Inspection...4-13 Choke Cable Adjustment...4-14 Reverse Gate Mechanism Inspection...4-14 Fuse Replacement...4-14 Battery...4-15 SPECIFICATIONS...4-17

STORAGE

Storing your Jet Boat for prolonged periods of time, such as winter storage, requires preventative maintenance to ensure against deterioration. It is advisable to have the Jet Boat serviced by an authorized Yamaha Jet Boat dealer before storage. However, the following procedures can be performed by the owner with a minimum of tools.

COOLING SYSTEM FLUSHING

FUEL SYSTEM
Top off the fuel tank with fresh fuel, adding one ounce of Yamaha Fuel Conditioner and Stabilizer (Part No. LUB-FUELC-12-00) or an equivalent to each gallon of fuel. A full fuel tank is less likely to allow condensation to collect in the tank, reducing the chance of contaminated fuel. Running the engines with treated fuel during cooling system flushing will also help protect carburetors and fuel lines. NOTE: _________________ Use of Yamaha Fuel Conditioner and Stabilizer eliminates the need to drain the fuel system. Consult your Yamaha dealer or other qualified mechanic if the fuel system is to be drained instead.
1 Flush Hose Connector 2 Garden Hose Adapter 3 Cap Cooling system flushing is essential to prevent the cooling system from clogging up with salt, sand, or dirt. 1. Open the cap for the engine you are going to flush. Press the flush kit garden hose adapter into the flush hose connector and turn until they are securely connected. 2. Start the engine, then immediately turn on the water supply fully.
Never turn on the water before starting the engine. The water could flow back through the muffler into the crankcase causing severe engine damage. Be sure to turn on the water immediately after starting the engine to prevent engine overheating. 3. Run the engine at a fast idle for 10~15 minutes.
Be sure to replace the cap securely after fogging the engine. Otherwise water could enter the engine and cause damage.
4. Turn off the water supply, then drain residual water from the exhaust system by alternately pushing the throttle lever up to half throttle and back for 10 to 15 seconds. Shut off engine.
Never have the water on when the engine is not running. The water could flow back through the muffler into the crankcase causing severe engine damage. Do not run the engine for more than 15 seconds after the water supply has been turned off to avoid engine overheating. 5. After stopping the engine, remove the garden hose adapter. 6. Replace the cap securely. 7. Repeat the flushing procedure for the other engine.

FUEL FILTER

The fuel filter is a one-piece, disposable type. The filter should be replaced once a year or after every 200 hours of operation, or if water is found in the filter. Take the Jet Boat to your Yamaha dealer if fuel filter replacement is required. ________________ Do not try to change the fuel filter yourself. An incorrectly installed filter can leak gasoline (petrol), which could lead to fire or explosion. Take the Jet Boat to your Yamaha dealer for fuel filter replacement.
Oil tank Check for oil tank damage or cracks. Check the oil hose and joint. When the oil tank needs to be cleaned, or when any water or dirt is found in the oil tank, take the Jet Boat to your Yamaha dealer for service. Oil filter replacement If the in-line oil filter becomes contaminated, see your Yamaha dealer for service.

FUEL TANK

If the fuel tank needs to be cleaned or when any water is found in the fuel system, take the Jet Boat to your Yamaha dealer for service.
OIL INJECTION SYSTEM INSPECTION
Check the oil injection system for leaks, cracks, or malfunctions. If any problem is found, do the necessary repair or replacement as required. If repair is necessary, consult your nearest Yamaha dealer. Check points 1. Check the oil tank for damage or cracks. 2. Check for water or dirt in the oil tank. 3. Check the oil hose and joint. 4. Check the oil filter.

Oil filter

________________ Air enters the oil delivery line when the oil filter is removed, so the oil system must be bled properly after the filter is replaced. Air in the system will prevent oil from flowing properly to the engine, and severe engine damage will result. Your Yamaha dealer has the professional knowledge and experience to bleed the oil pump properly.
BLEEDING THE OIL INJECTION PUMP
The carburetor was set at the Yamaha factory after many tests. If the settings are disturbed without having technical knowledge, poor engine performance and damage may result. Trolling Speed ( Idle)
1 Air bleeding screw To bleed the oil injection pump, loosen the air bleeding screw on the bleed hose. Oil will flow into the oil injection pump. Hold a rag under the screw hole to catch oil as it spills out. Keep letting oil run out until there are no bubbles in the oil. Tighten the screw firmly and wipe up any spilled oil completely. Properly dispose of oil soaked rags.

Throttle stop screw

NOTE: _________________ A diagnostic tachometer is useful for this procedure. Place the Jet Boat afloat. Start the engine and warm it up for one or two minutes. Using a diagnostic tachometer, adjust one engines speed to specification. Turn the throttle stop screw clockwise to increase engine speed or counterclockwise to decrease engine speed. Repeat the procedure on the other engine. Trolling speed: 1,200~1,300 r.p.m.

TOWING THE JET BOAT JUMP STARTING
Bow eye The Jet Boat should be towed only if it becomes inoperative. The towing rope should be long enough so that the Jet Boat will not collide with the towing boat when slowing down. A good rule of thumb is a tow rope which is three times the combined length of the towing boat and the Jet Boat. Tow the Jet Boat using the bow eye only. Tow the boat at a "no wake" speed. ________________ The operator of the towing boat must keep speed to a minimum and avoid traffic or obstacles which could be a hazard to the driver on the Jet Boat.
Negative () jumper cable Positive (+) jumper cable
If the boat batteries run down, the engines can be started in an emergency using a 12-volt battery and jumper cables.
________________ SEVERE INJURY OR DEATH MAY RESULT IF YOU IGNORE ANY OF THE FOLLOWING: If blower will not operate, ventilate engine compartment by opening engine compartment hatch for several minutes before attempting jump starting. Do not connect the negative () jumper cable to the negative () terminal of the dead battery. Sparks could ignite battery or fuel vapors, which could cause an explosion.
JET PUMP CLEAN-OUT PROCEDURE
________________ SEVERE INJURY OR DEATH MAY RESULT IF YOU IGNORE ANY OF THE FOLLOWING: Turn off and remove both ignition keys, remove lanyard, and wait for all movement to stop before removing access port caps. Never override interlocks to run engine with hatch open. The impeller has sharp edges. Be careful when reaching into jet pump area. If weeds or debris get caught in the intake or impeller, cavitation can occur, and though the engine speed rises, forward thrust will decrease. If this condition is allowed to continue, pump damage can occur and the engines may overheat and seize. If there is any sign that the jet intake or impeller is clogged with weeds or debris, follow this cleanout procedure. 1. Turn off and remove ignition keys, remove lanyard, and wait for all movement to stop. 2. Lift the hatch on the rear platform.
To connect the jumper cables: 1. Connect the positive (+) terminal of the dead battery to the positive terminal (+)of the booster battery with the positive jumper cable. 2. Connect one end of the negative () jumper cable to the negative () terminal of the booster battery. 3. Connect the other end of the negative () cable to an unpainted bolt on the cylinder head.

Keep your Yamaha Jet Boat protected even after the 1-year warranty coverage provisions expire with genuine Yamaha Extended Service (Y.E.S.). Y.E.S. is designed and administered by Yamaha Motor Corporation to provide maximum owner satisfaction. You get uninterrupted factory-backed coverage for extra peace of mind. Y.E.S. is flexible. You choose the plan that's right for you: 12 months, 24 months, 36 months, or 48 months beyond the 1year warranty coverage period. That means you can get up to 5 years of coverage on the power train, controls, and other components to match the comforting 5year standard protection on the hull. Y.E.S. is designed and administered by the same Yamaha people who handle your warranty and it shows in the comprehensive coverage benefits. There are no limitations on hours of use. Coverage isn't limited to "moving parts" or the "drive train" like many other plans. And Y.E.S. covers manufacturing defects just like the warranty. See the sample contract at your Yamaha dealer to see how comforting uninterrupted factory-backed protection can be. You don't have to pay anything for covered repairs. There's no deductible to pay, and repairs aren't "prorated." You don't have any "out-of-pocket" expenses for covered repairs. In addition, Travel and Recreation Interruption Protection (TRIP) is included at no extra cost. TRIP gives you up to $150 reimbursement per occurrence for any reasonable expenses you incur because your Yamaha needs covered service:
replacement vehicle rental, emergency towing, phone calls, even food and lodging when you are away from home. This superb coverage goes into effect when you purchase Y.E.S., so it applies to any warranty repairs as well as covered repairs during your entire Y.E.S. plan period. Y.E.S. coverage is honored at any authorized Yamaha dealer nationwide. Y.E.S. coverage is transferrable to a new owner if you sell or trade-in. That can make your Yamaha Jet Boat much more valuable! This excellent Y.E.S. plan coverage is only available to Yamaha owners like you, and only while your Yamaha is still within the first year of the Yamaha Limited Warranty period. So visit your authorized Yamaha dealer to get all the facts. He can show you how easy it is to protect your investment with Yamaha Extended Service. We urge you to act now. You'll get the excellent benefits of TRIP coverage right away, and you'll rest easy knowing you'll have strong factory-backed protection even after your Yamaha Limited Warranty expires.You can also save money: Y.E.S. costs less within the first 90 days after you buy your Yamaha. See your dealer today! A special note: If visiting your dealer isn't convenient, contact Yamaha with your Primary ID number or Hull Identification Number. We'll be happy to help you get the Y.E.S. coverage you need. Yamaha Service Marketing P.O. Box 6555 Cypress, CA 90630 (714) 761-7632