EMU01448 TO THE OWNER Thank you for choosing a Yamaha out- board motor. This Owner’s manual con- A CAUTION indicates special precautions tains information needed for proper oper- that must be taken to avoid damage to ation, maintenance and care. A thorough the outboard motor.
Record your outboard motor serial num- ber in the spaces provided to assist you in 401012 ordering spare parts from your Yamaha dealer or for reference in case your out- board motor is stolen. 1 Outboard motor serial number...
EMU01385 EMISSION CONTROL INFORMATION EMU01386 NORTH AMERICAN MODELS This engine conforms to U.S. Environ- mental Protection Agency (EPA) regula- 108015* tions for marine SI engines. See the label affixed to your engine for details. Approval label of Emission control certificate This label is attached to the bottom cowl- ing.
EMU00917 8 This product emits exhaust gases which SAFETY contain carbon monoxide, a colorless, INFORMATION odorless gas which may cause brain damage or death when inhaled. Symp- toms include nausea, dizziness, and 8 Before mounting or operating the out- drowsiness. Keep cockpit and cabin board motor, read this entire manual.
8 Be informed about boating safety. Addi- tional publications and information can be obtained from many organizations, including the following: United States Coast Guard Consumer Affairs Staff (G-BC) Office of Boating, Public, and Consumer Affairs U.S. Coast Guard Headquarters Washington, D.C. 20593-0001 Boating Safety Hotline: 1-800-368-5647 National Marine Manufacturers Association (NMMA)
EMB30010 IMPORTANT LABELS WARNING LABELS WARNING Be sure shift control is in neutral before starting engine. (except 2HP) Do not touch or remove electrical parts when starting or during operation. 202012* Keep hands,hair,and clothes away from flywheel and other rotating parts while engine is running. 6A1-83625-41 WARNING This engine is equipped with a neutral starting device.
EMB40010 BASIC BOATING RULES Stand-on Vessel The vessel with the right-of-way has the (Rules of the road) duty to continue its course and speed, except to avoid an immediate collision. Just as there are rules which apply when When you maintain your direction and you are driving on streets and high ways, speed, the other vessel will be able to there are waterway rules which apply...
RULES WHEN ENCOUNTERING side. This rule doesn’t apply if both of you will clear one another if you continue on VESSELS your set course and speed. There are three main situations which you may encounter with other vessels which could lead to a collision unless the Steer- ing Rules are followed: Meeting (you are approaching another vessel...
of its way until you are clear of it. Like- When the sailing vessel is overtaking wise, if another vessel is passing you, you the power-driven vessel, the power- should maintain your speed and direction driven vessel has the right-of-way. so that the other vessel can steer itself Sailing vessels should keep clear of around you.
Remember, markings may vary by geo- graphic location. Always consult local boating authorities before driving your boat in unfamiliar waters. MAIN CHANNEL BUOYS " 1 " " 3 " " 5 " " 7 " " 6 " LIGHTED BUOY (Port Hand)` C "...
EMU00016 FUELING INSTRUCTIONS GASOLINE AND ITS VAPORS ARE HIGH- LY FLAMMABLE AND EXPLOSIVE! 8 Do not smoke when refueling, and keep away from sparks, flames, or other sources of ignition. 8 Stop engine before refueling. 8 Refuel in a well-ventilated area. Refuel portable fuel tanks off the boat.
EMU00018 GASOLINE (PETROL) Recommended gasoline: Regular unleaded gasoline with a minimum octane rating of 86 (Pump octane number) = (R+M)/2 If knocking or pinging occurs, use a differ- ent brand of gasoline or premium unlead- ed fuel. If unleaded gasoline is not avail- able, then leaded regular gasoline can be used.
Conversely, a larger-pitch pro- peller is more suitable for a smaller oper- ating load. Yamaha dealers stock a range of pro- pellers, and can advise you and install a propeller on your outboard that is best suited to your application.
3 Type of propeller (propeller mark) Refer to the section “CHECKING PRO- PELLER” for instructions on propeller 602021 removal and installation. EMU01209 START-IN-GEAR PROTECTION Yamaha outboard motors or Yamaha approved remote control units equipped with start-in-gear protection device(s). This feature permits the engine to be started only when it is Neutral.
EMU01206 MAIN COMPONENTS 101022* 902063 902051* 101232 1 Top cowling q Carrying handle 2 Cowling lock lever w Cooling water inlet 3 Cooling water pilot hole e Anti-cavitation plate 4 Tilt lock lever r Trim angle adjusting rod 5 Recoil starter handle t Clamp bracket 6 Gear shift lever y Rope attachment...
EMC20010 OPERATIONS OF CONTROLS AND OTHER FUNCTIONS EMC21012 FUEL TANK If your model was equipped with a portable fuel tank, its function is as fol- lows. 1 Fuel hose joint 2 Fuel meter(If equipped) 3 Fuel tank cap 4 Air vent screw(If equipped) Fuel hose joint This connector is provided for connecting or disconnecting fuel hose.
EMC27011 ENGINE STOP BUTTON (for Tiller control model) Pushing this button opens the ignition cir- cuit and stops the engine. EMU00931 407021* ENGINE STOP LANYARD SWITCH (for Tiller control model) The lock-plate 1 must be attached to the engine stop lanyard switch for the engine to run.
EMC40010 THROTTLE CONTROL GRIP (for Tiller control model) The throttle control grip is on the tiller handle. Turn the grip counterclockwise to increase speed and clockwise to decrease speed. Throttle indicator The fuel consumption curve on the throt- tle indicator shows the relative amount of fuel consumed for each throttle position.
EMC60010 TILLER HANDLE (for Tiller control model) Moving the tiller handle sideways to adjust the steering direction. 503015 EMC64010 Throttle Friction Adjustment (for Tiller control model) A friction device in the tiller handle pro- vides resistance to movement of the throttle grip.
EMD00010 STEERING FRICTION ADJUSTMENT (for Tiller control model) A friction device provides resistance to steering movement. This is adjustable for operator preference. An adjusting screw/bolt is located on the swivel bracket. 408011 To increase the resistance: Turn the adjusting screw/bolt clockwise. To decrease the resistance: Turn the adjusting screw/bolt counter- clockwise.
EMD48010 TILT SUPPORT BAR The tilt support bar keeps the outboard motor in the tilted up position. 403013 EMD62011 TOP COWLING LOCK LEVER To remove the engine top cowling, turn the lock lever. Then lift off the cowling. When replacing the cowling, check to be sure it fits properly in the rubber seal.
EMF10010 INSTALLATION Incorrect engine height or obstructions to smooth water flow (such as the design or condition of the boat or accessories such as transom ladders/depth finder trans- ducers) can create airborne water spray while the boat is cruising. Severe engine damage may result if the motor is operat- ed continuously in the presence of air- borne water spray.
EMU00176 MOUNTING THE OUTBOARD MOTOR Improper mounting of the outboard motor could result in hazardous condi- tions such as poor handling, loss of con- trol, or fire hazards. Observe the follow- ing: 8 The information presented in this sec- tion is intended as reference only. It is possible provide complete...
Overpowering a boat may cause severe instability. Do not install an outboard motor with more horsepower than the maximum rating on the capacity plate of the boat. If the boat does not have a capacity plate, consult the boat manufac- turer.
EMF14010 CLAMPING THE OUTBOARD MOTOR 1) Place the outboard on the transom so that it is positioned as close to the center as possible. Tighten the tran- som clamp screws evenly and secure- ly. Check the clamp-screws for tight- ness occasionally during operation of 409011 the motor as they can work loose due to engine vibration.
While many additives available may reduce deposits, Yamaha recommends the use of Ring Free Fuel Additive, avail- able from your Yamaha dealer. Ring Free has repeatedly proven its ability to clean combustion deposits from inside the engine, notably the critical piston-ring- land area, and fuel system components.
EMF35010 GASOLINE (PETROL) AND OIL MIXING Pre-mix model Oil : Gasoline (Petrol) Break-in period 1 : 25 After break-in 1 : 100 1) Pour oil and gasoline into the fuel tank, in that order. 1 Oil 2 Gasoline (Petrol) 2) Then mix the fuel thoroughly by shak- ing.
Mixing ratio 100 : 1 12 L 14 L 24 L Gasoline (Petrol) (0.26 US gal, (3.2 US gal, (3.7 US gal, (6.3 US gal, 0.22 Imp gal) 2.6 Imp gal) 3.1 Imp gal) 5.3 Imp gal) 0.01 L 0.12 L 0.14 L 0.24 L Engine oil...
EMF43010 Controls 8 Check throttle, shift, and steering for proper operation before starting the engine. 8 The controls should work smoothly, without binding or unusual free play. 8 Look for loose or damaged connec- tions. 8 Check operation of the starter and stop switches when the outboard motor is in the water.
Break-in (running-in) time:10 hours Break-in (running-in) premix ratio: Refer to “Gasoline/Petrol and Oil Mixing”. EMU00226 Run the engine under load (in gear with a propeller installed) as follows. 1) First 10 minutes: Run the engine at the lowest possi- ble-speed. A fast idle in neutral is best.
EMU01147 STARTING ENGINE 8 Before starting the engine, make sure that the boat is tightly moored and that you can steer clear of any obstructions. Be sure there are no swimmers in the 902053 water near you. 8 When the air vent screw is loosened, gasoline (petrol) vapor will be released.
EMU00854 PROCEDURE FOR TILLER CONTROL MODEL 4) Place the gear-shift lever in the neu- tral position. NOTE: The start-in-gear protection device pre- vents the engine from starting except when in Neutral. 406042 5) Place the throttle control grip in the “START”...
EMU00241* Manual Start Model 7) Pull out the choke knob completely when the engine is cold. After the engine starts, set the choke knob to the 2nd or 3rd position for warming up the cold engine. After warming up the engine, set the choke knob to the original position.
EMG00010-* WARMING UP ENGINE 1) Before beginning operation, allow the engine to warm up at idling speed for 3 minutes. (Failure to do this will shorten engine life.) 2) Check for a steady flow of water from the cooling-water pilot hole. 309012 A continuous flow of water from the pilot hole shows that the water pump is...
EMG20111 SHIFTING Before shifting, make sure there are no swimmers or obstacles in the water near you. To change the shifting position from for- ward to reverse or vice-versa, close the throttle first so that the engine idles (or runs at low speeds). EMG22110 FORWARD 1) Place the throttle control grip in the...
EMG33210 REVERSE When operating in Reverse, go slowly. Do not open the throttle more than half. Oth- erwise, the boat may become unstable, which could result in loss of control and an accident. 503012 1) Place the throttle control grip in the fully closed position (for Tiller control model).
EMG38010 STOPPING ENGINE Let it cool off for a few minutes at idle or low speed first. Stopping the engine immediately after operating at high speed is not recommended. EMU00275 1) Push and hold the engine stop button 407021* until the engine comes to a complete stop.
EMU01412 TRIMMING OUTBOARD MOTOR The trim angle of the outboard motor helps determine the position of the bow of the boat in the water. The correct trim angle will help improve performance and fuel economy while reducing strain on the engine.
ADJUSTING TRIM ANGLE EMU00951 Manual tilt model There are 4 or 5 holes provided in the clamp bracket to adjust the outboard motor trim angle. 1) Stop the engine. 2) Remove the trim angle adjusting rod 1 from the clamp bracket while tilting 404013* the motor up slightly.
EMG62010 Bow up When the boat is on plane, a bow-up atti- tude result in less drag, greater stability and efficiency. This is generally when the keel line of the boat is up about 3 to 5 degrees. When trimmed out, the boat may have more tendency to steer to one side or the other.
EMG70011 CRUISING IN SHALLOW WATER The outboard motor can be tilted up par- tially to allow operation in shallow water. 8 Place the gear shift in the Neutral posi- 000832 tion before using the shallow water cruising system. 8 Run the boat at the lowest possible speed when using the shallow water cruising system.
EMG71210 PROCEDURE 1) Place the gear shift lever in the neu- tral position. 406042 2) Pull up the tilt lock lever. 402015 3) Slightly tilt up the engine. The tilt- support bar will lock automatically, supporting the engine in a partially raised position.
EMH10110 TILTING UP/DOWN If the engine will be stopped for some time, or if the boat is moored in shallows, the engine should be tilted up to protect the propeller and casing from damage by collision with obstructions, and also to reduce salt corrosion.
EMU00290 PROCEDURE FOR TILTING UP 1) Place the gear shift lever in Neutral. 2) Remove the fuel line connection from the motor. 304013 3) Place the tilt lock lever in the release position. 402015 4) Hold the rear of the top cowling with one hand and fully tilt the engine up.
EMH60010 CRUISING IN OTHER CONDITIONS CRUISING IN SALT WATER After operating in salt water, wash out the cooling-water passages with fresh water to prevent them from becoming clogged- up with salt deposits. NOTE: Refer to cooling system flushing instruc- tions in “TRANSPORTING AND STORING OUTBOARD MOTOR”.
EMU01369 TRANSPORTING AND STORING OUTBOARD MOTOR Leaking fuel is a fire hazard. When trans- porting and storing the outboard motor, close the air vent screw and fuel cock to prevent fuel from leaking. TRAILERING OUTBOARD MOTOR The motor should be trailered and stored in the normal running position.
(Part No. LUB-FUELC-12- 00) to each gallon of fuel. NOTE: The 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 sys-...
5) Run the engine at a fast idle for 10~15 minutes. 6) Just prior to turning off the engine, quickly spray “Yamaha Stor-Rite Engine Fogging Oil” (Part No. LUB- STRRT-12-00) into the silencer cover. When properly done, the engine will smoke excessively and almost stall.
EMK26010 Lubrication 1) Remove the spark plugs, and spray a 10 second spray of Yamaha Stor-Rite Engine Fogging Oil into each cylinder. Grease the spark plug threads and reinstall the spark plugs and torque to proper specification. (Refer to the Periodic Maintenance section, “Cleanning and adjusting...
If the owner is not familiar with machine servicing, this work should be done by a Yamaha dealer or other quali- fied mechanic. A service manual is available for purchase through a Yamaha dealer for owners who...
Frequency of maintenance operations may be adjusted according to the operating con- ditions, but the following table gives general guidelines. The mark ( ) indicates the check-ups which you may carry out yourself. The mark (1) indicates work to be carried out by your Yamaha dealer. Interval Initial Every...
Do not attempt to diagnose any problems yourself. Instead, take the outboard motor to a Yamaha dealer. You should periodically remove and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode.
When fitting the plug, always clean the gasket surface and use a new gasket. Wipe off any dirt from the threads and screw in the spark plug to the correct torque. Spark plug torque: Refer to “SPECIFICATIONS”, page 4-1. NOTE: If a torque-wrench is not available when you are fitting a spark plug, a good esti- mate of the correct torque is 1/4 to 1/2 a...
EMK38010 CHECKING FUEL SYSTEM Gasoline (petrol) and its vapors are highly flammable and explosive. Keep away from sparks, cigarettes, flames or other sources of ignition. Check the fuel line for leaks, cracks, or malfunctions. If any problem is found, it should be repaired immediately by Yama- ha dealer or other qualified mechanic.
Gasoline (petrol) is highly flammable, and its vapors are flammable and explosive. 8 If you have any question about properly doing this procedure, consult your Yamaha dealer. 8 Do not perform this procedure on a hot or running engine. Allow the engine to cool.
Correct idling-speed adjustment is only possible if the engine is fully warmed-up. If not warmed up fully, the speed setting will tend to be too high. If you have diffi- culty obtaining the specified idle, consult a Yamaha dealer or other qualified mechanic. 4-13...
EMK78010 CHECKING WIRING AND CONNECTORS 1) Check that each grounding wire is properly secured. 2) Check that each connector is engaged securely. 606011 EXHAUST LEAKAGE Start the engine and check that no exhaust leaks from the joints between the exhaust cover, cylinder head and crank case.
EML08110-* CHECKING PROPELLER You could be seriously injured if the engine accidentally starts while you are near the propeller. 8 Before inspecting, removing installing the propeller, remove the 210012 spark plug caps from the spark plugs. Also, put the shift control in Neutral, put the main switch in the OFF position and remove the key, and remove the lanyard from the engine stop switch.
1 Thrust washer 2 Propeller 3 Washer 4 Propeller nut 5 Cotter pin 602052 [How to install propeller] 1) Apply Yamaha Marine grease D or Marine grease (water-resistant grease) to the propeller-shaft. 2) Slide the propeller over the propeller- shaft.
Inspect the used oil after it has been drained. If the oil is milky, water is get- ting into the gearcase which can cause gear damage. Consult a Yamaha dealer for repair of the lower unit seals. NOTE: For disposal of used oil consult your Yamaha dealer.
Gasoline (petrol) is highly flammable, and its vapors are flammable and explosive. 8 If you have any question about properly doing this procedure, consult your Yamaha dealer. 8 Keep away from sparks, cigarettes, flames or other sources of ignition when cleaning the fuel tank.
Reinstall the fuel meter assembly and tighten the screws firmly. EML24010 INSPECTING AND REPLACING ANODE Yamaha outboard motor is protected from corrosion by sacrificial anode. Check the anode periodically. Remove the scales from surfaces of the anode. For the replacement of the anode, consult 604011* a Yamaha dealer.
Check the motor for scratches, nicks, or flaking paint. Areas with damaged paint are more likely to corrode. If necessary, clean and paint the areas. Consult a Yamaha dealer for touch-up paint. EML44010 COATING THE BOAT BOTTOM A clean hull improves boat performance.
EMN00010 Chapter 5 TROUBLE RECOVERY TROUBLESHOOTING ......5-1 TEMPORARY ACTION IN EMERGENCY ..........5-5 Impact damege........5-5 Starter will not operate ......5-6 Treatment of submerged motor ..5-8...
A problem in the fuel, compression, or ignition systems can cause poor starting, loss of power, or other problems. The troubleshooting chart describes basic checks and possi- ble remedies. (This chart covers all Yamaha outboard motors. Therefore, some items may not apply to your model.) If your outboard motor requires repair, bring it to a Yamaha dealer.
3. Fill tank with clean, fresh fuel. 4. Fuel filter clogged. 4. Clean or replace filter. 5. Failed ignition parts. 5. Have serviced by a Yamaha dealer. 6. Spark plug gap incorrect. 6. Inspect and adjust as specified. 7. Poor connections or damaged 7.
12. Check wires for wear or breaks. ignition wiring. Tighten all loose connections. Replace worn or broken wires. 13. Failed ignition parts. 13. Have serviced by a Yamaha dealer. 14. Specified engine oil not used. 14. Check and replace oil with specified type.
Possible Cause Remedy 1. Propeller damaged. 1. Have propeller repaired or replaced. 2. Propeller shaft damaged. 2. Have serviced by a Yamaha dealer. D. Engine vibrates 3. Weeds or other foreign matter 3. Remove and clean propeller. excessively. tangled on propeller.
Also, inspect the boat damage. 3) However damage is found or not found, go back to a nearest harbor 607011 slowly and carefully. 4) Have a Yamaha dealer inspection of the outboard motor, before operating it again.
EMN30110 STARTER WILL NOT OPERATE If the starter mechanism does not operate (engine cannot be cranked with the starter), the engine can be started with an emergency starter rope. 8 Use this procedure only in an emer- gency and only to return to port for repairs.
Procedure 1) Remove the top cowling. 301012 2) Remove the starter/flywheel cover by removing the bolts. NOTE: On a model equipped with the start-in- gear protection device (cable), disconnect the cable from the starter. 208012 3) Prepare the engine for starting. See "STARTING ENGINE"...
107013 while cranking with the manual starter or emergency starter rope. 5) Take the outboard motor to a Yamaha dealer as soon as possible. Do not attempt to run the motor until it has been completely inspected.
EMP10010 Fuel hose joint ..........2-2 INDEX Fuel meter..........2-2 Fuel tank............2-2 Fuel tank cap..........2-2 Adjusting idling speed ......4-13 Fueling instructions .......1-10 Adjusting trim angle......3-18 Air vent screw...........2-2 Gasohol...........1-11 Gasoline (petrol) ........1-11 Basic boating rules (Rules of the road) ..1-6 Gasoline (petrol) and oil mixing.....3-6 Breaking in (running in) engine....3-8 Gear shift lever.........2-2 Carrying handle........2-7...
Shifting............3-14 Specification data ........4-1 Start-in-gear protection......1-13 Starter will not operate......5-6 Starting engine........3-10 Steering friction adjustment ....2-6 Stopping engine........3-16 Storing outboard motor ......4-4 Temporary action in emergency....5-5 Throttle control grip.........2-4 Throttle friction adjustment ....2-5 Throttle indicator ........2-4 Tiller handle..........2-5 Tilt lock mechanism.........2-6 Tilt support bar.........2-7 Tilting up/down ........3-22 Top cowling lock lever ......2-7...
1. Be sure your new Yamaha is registered for warranty. Your boat dealer should do this at the time of sale. Make sure your dealer gives you a copy of the completed Yamaha regis- tration card for your records.
5. Your warranty applies specifically to repairs made in the country of purchase. If your U.S.-purchased Yamaha needs warranty service while in Canada, or your Canadian pur- chased Yamaha needs service while in the United States, Yamaha will assist the local dealer whenever possible. However, some products available in one country may not be sold or serviced in the other.
Owner’s Manual. The owner of the outboard motor shall give notice to an authorized Yamaha marine dealer of any and all apparent defects within ten (10) days of discovery and make the motor available at that time for inspection and repairs at the dealer’s place of business.
TRANSFER OF WARRANTY. Transfer of the warranty from the original purchaser to any subsequent purchaser is possible by having the motor inspected by an authorized Yamaha outboard dealer and requesting the dealer to submit a change of registration to Yamaha Motor Corporation, U.S.A.
The federal government requires each manufacturer of a motor vehicle to maintain a complete, up-to-date list of all first purchasers against the possibility of a safety-related defect and recall. This list is complied from the purchase registrations sent to Yamaha Motor Corporation, U.S.A.
Yamaha outside the U.S.A. or Canada, please contact an autho- rized Yamaha dealer in your country. Keep a copy of your sales contract or invoice for the purchase of your Yamaha and present it if you need warranty repairs. This document should show the date of purchase, which is important evidence the repairing dealer will need to be sure your Yamaha is covered by warranty.
Printed in Japan March 2001—0.5 63V-28199-14 (9.9FMH/15FMH) Printed on recycled paper...