EMU25110 Yamaha. If you have any question about the operation or maintenance of your outboard motor, please consult a Yamaha dealer. In this Owner’s Manual particularly important...
Table of contents General information ......1 (three indicators 2) ......18 Oil level indicator (digital type) ..18 Identification numbers record..1 Overheat warning indicator Outboard motor serial number ..1 (digital type) ........19 Key number........1 Speedometer (digital type) ....19 Emission control information ...
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YEAR LIMITED WARRANTY ..69 Periodic maintenance....45 IMPORTANT WARRANTY Replacement parts ......45 INFORMATION IF YOU USE Maintenance chart ......46 YOUR YAMAHA OUTSIDE Maintenance chart (additional)..47 U.S.A. OR CANADA ....72 Greasing ......... 48 Cleaning and adjusting spark plug ..........48 Checking fuel system ......
Record your outboard motor serial number in the spaces provided to assist you in ordering spare parts from your Yamaha dealer or for reference in case your outboard motor is sto- len. 1. Key number...
General information particular label. ZMU01856 ZMU04844 EMU25261 Manufactured date label 1. Star labels location This label is attached to the clamp bracket or the swivel bracket. EMU25280 One Star—Low Emission The one-star label identifies engines that meet the Air Resources Board’s 2001 ex- haust emission standards.
General information the outboard should be equal to or less than the rated horsepower capacity of the boat. If the rated horsepower capacity of the boat is unknown, consult the dealer or boat manufacturer. Do not modify the outboard. Modifications could make the motor unfit or unsafe to use.
General information of the road” on page 5. EMU25380 Important labels Stay informed about the weather. Check EMU25395 weather forecasts before boating. Avoid Warning labels boating in hazardous weather. Tell someone where you are going: leave a Float Plan with a responsible person. Be sure to cancel the Float Plan when you re- turn.
General information YAMALUBE 2 STROKE OUTBOARD OIL or cies. You should be aware of these rules, an equivalent TC-W3 certified ouboard oil. and follow them whenever you encounter EWM01270 another vessel on the water. WARNING Several sets of rules prevail according to Do not add gasoline to the oil tank.
General information you are doing. “The general prudential rule” This rule is called Rule 2 in the International Rules and says, “In obeying and construing these rules due regard shall be had to all dangers of naviga- tion and collision, and to any special circum- stances, which may render a departure from the above rules necessary in order to avoid immediate danger.”...
General information or trawls are considered to be “fishing ves- sels” under the International Rules. Vessels with trolling lines are not considered fishing vessels. Fishing vessels have the right-of- way regardless of position. Fishing vessels cannot, however, impede the passage of other vessels in narrow channels.
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General information This system uses buoys and signs with dis- tinctive shapes and colors to show regulato- ry or advisory information. These markers are white with black letters and orange boarders. They signify speed zones, restrict- ed areas, danger areas, and general infor- mation.
General information ZMU01708 EMU25540 away from sparks, flames, or other Fueling instructions sources of ignition. EWM00010 Stop engine before refueling. WARNING Refuel in a well-ventilated area. Refuel GASOLINE AND ITS VAPORS ARE HIGH- portable fuel tanks off the boat. LY FLAMMABLE AND EXPLOSIVE! Take care not to spill gasoline.
Gasohol containing ethanol can be used if ethanol content does not exceed 10% and the fuel meets minimum octane ratings. Yamaha does not recommended gasohol containing methanol because it can cause fuel system damage or engine performance problems.
53. on the engine. EMU25770 Yamaha outboard motors are fitted with pro- Start-in-gear protection pellers chosen to perform well over a range Yamaha outboard motors or Yamaha-ap- of applications, but there may be uses where...
Basic components EMU25795 Main components NOTE: * May not be exactly as shown; also may not be included as standard equipment on all mod- els. VZ200D, VZ225D, VZ250D, VZ300D YAMAHA YAMAHA SPEED SPEED Km/h Km/h knot knot mile mile TRIP...
Basic components 6. Throttle 7. Fully open EMU26201 Neutral interlock trigger To shift out of neutral, first pull the neutral in- terlock trigger up. 1. Power trim and tilt switch 2. Remote control lever 3. Neutral interlock trigger 4. Neutral throttle lever 5.
Basic components EMU25990 Engine stop lanyard switch The lock plate must be attached to the en- gine stop switch for the engine to run. The lanyard should be attached to a secure place on the operator’s clothing, or arm or leg. Should the operator fall overboard or leave the helm, the lanyard will pull out the lock plate, stopping ignition to the engine.
Basic components EMU26141 Power trim and tilt switch on remote control or tiller handle The power trim and tilt system adjusts the outboard motor angle in relation to the tran- som. Pressing the switch “ ” (up) trims the outboard motor up, then tilts it up. Pressing the switch “...
Basic components while the boat is moving could increase protect the engine from electrochemical the risk of falling overboard and could corrosion. Never paint the trim tab as it distract the operator, increasing the risk will become ineffective as an anode. of collision with another boat or an obsta- cle.
Basic components ZMU01864 ZMU04841 EMU26391 Top cowling lock levers 1. Air intake grille To remove the outboard motor top cowling, 2. Top cowling lock lever(s) pull up the front and rear lock levers. Then lift off the cowling. When the cowling, check to EMU26460 Flushing device be sure it fits properly in the rubber seal.
Basic components NOTE: The water separator and engine trouble warning indicators only operate when the en- gine is equipped with the appropriate func- tions. EMU26540 Oil level indicators (three indicators) The indicators on the gauge show the status of the oil level. For details on how to read the ZMU04577 indicators, see page 30.
Basic components ZMU01867 1. Speedometer 1. Oil level indicator 2. Fuel gauge EMU26581 3. Trip meter/clock/voltmeter Overheat warning indicator (digital 4. Warning indicator(s) type) NOTE: If the engine temperature rises too high, the After the main switch is first turned on, all warning indicator will start to blink.
Basic components 3. Selector switch (for fuel sensor) EMU26610 Trim meter This gauge shows the trim angle of your out- board motor. ZMU01869 EMU26650 Hour meter (digital type) This meter shows the number of hours the engine has been run. It can be set to show the total number of hours or the number of ZMU04581 hours for the current trip.
The trip distance is shown in kilometers or CAUTION: miles depending upon the unit of measure- The Yamaha fuel tank sensor differs from ment selected for the speedometer. conventional sensors. Incorrectly setting The trip distance is kept in memory by bat- the selector switch on the gauge will give tery power.
Do not continue to operate the engine if a activated. Get back to the port within troll- warning device has activated. Consult ing engine speed. your Yamaha dealer if the problem can- not be located and corrected. EMU26813 Overheat warning This engine has an overheat warning device.
Basic components ZMU02373 ZMU01757 EMU26843 Oil level warning and oil filter clogging warning Oil injection models This engine has an oil level warning system. If the oil level falls below the lower limit, the warning system will activate. Activation of warning device Engine speed will automatically decrease ZMU04766 to about 2000 r/min.
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Basic components The buzzer will sound. ZMU01952 ZMU03025 If the warning system has been activated, 1. Oil filter stop the engine and check for the cause. NOTE: The warning for oil filter clogging is similar to the warnings for low oil level and overheat- ing.
Operation EMU26901 specific boat and motor combination. Installation EWM00830 ECM00110 WARNING CAUTION: Improper mounting of the outboard mo- Incorrect engine height or obstructions tor could result in hazardous conditions to smooth water flow (such as the design such as poor handling, loss of control, or or condition of the boat, or accessories fire hazards.
Test runs at different heights can help de- termine the optimum mounting height. Consult your Yamaha dealer or boat man- ufacturer for further information on deter- mining the proper mounting height. For instructions on setting the trim angle of the outboard motor, see page 34.
3000 r/min). Vary engine speed Check fuel line connections to be sure they occasionally. If you have an easy-plan- are tight (if equipped Yamaha fuel tank or ing boat, accelerate at full throttle onto boat tank). plane, then immediately reduce the Be sure the fuel tank is positioned on a se- throttle to 3000 r/min or less.
After any air in the oil lines has been expelled, the oil injection system should supply oil normally. If no oil is flowing after 10 minutes of idling, consult your Yamaha dealer. ECM00560 CAUTION: Be sure to take the above steps when operating the engine after a long period of storage.
The top oil level line indi- Ring Free Fuel Additive, available from cates approximately 1.9 L (0.5 US gal, 0.4 your Yamaha dealer. Ring Free Fuel Addi- Imp gal) can be added, and the bottom oil tive has repeatedly proven its ability to clean level line indicates approximately 3.8 L (1 US...
Operation EMU27321 Oil level indicator operation The various functions of the oil level system are as follows: EMU27381 Oil level indicator Electric start models Oil level warning Oil level warning Engine oil Remote oil indicator indicator (analog Remarks tank tank (digital tachometer) tachometer)
Operation EMU27450 Operating engine EMU27480 Feeding fuel EWM00420 WARNING 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 water near you. EMU27490 When the air vent screw is loosened, Starting engine...
Operation that could tear loose. Do not route the (on). lanyard where it could become entan- ECM00191 CAUTION: gled, preventing it from functioning. Never turn the main switch to “ ” Avoid accidentally pulling the lanyard (start) while the engine is running. during normal operation.
Operation EMU27861 Trimming outboard motor The trim angle of the outboard motor helps determine the position of the bow of the boat in the water. Correct trim angle will help im- prove performance and fuel economy while reducing strain on the engine. Correct trim angle depends upon the combination of boat, engine, and propeller.
Operation Adjust the outboard motor trim angle using the power trim and tilt switch. 1. Power trim and tilt switch ZMU01983 1. Trim operating angle EMU27881 Adjusting trim angle ZMU01944 Power trim and tilt models EWM00750 1. Power trim and tilt switch WARNING To raise the bow (trim-out), press the switch Be sure all people are clear of the out-...
Operation results in less drag, greater stability and effi- Bow Down Too much trim-in causes the boat to “plow” ciency. This is generally when the keel line of through the water, decreasing fuel economy the boat is up about 3 to 5 degrees. With the and making it hard to increase speed.
Operation bracket. EWM00250 WARNING Leaking fuel is a fire hazard. If there is a fuel joint on the outboard motor, discon- nect the fuel line or close the fuel cock if the engine will be tilted for more than a few minutes.
Operation sure. Models equipped with trim rods: Once the outboard motor is supported with the tilt support lever, press the power trim and tilt switch “ ” (down) to retract the trim rods. ECM00250 CAUTION: Be sure to retract the trim rods complete- ZMU01885 ly during mooring.
/ tilt NOTE: switch. For cooling system flushing instructions, see page 41. Cruising in turbid water Yamaha strongly recommends that you use the optional chromium-plated water pump kit if you use the outboard motor in turbid (mud- dy) water conditions.
This can Do not use any chemical goods contain- cause fuel leakage and a potential fire ing Silicon, Phosphorus, or Lead. Con- hazard. sult your Yamaha dealer for details on the EWM00700 use of chemical goods for storage. WARNING EMU28301...
Run the engine at idle in neutral for about 10–15 minutes. Just prior to turning off the engine, quick- ly spray “Yamaha Stor-Rite Engine Fogging Oil” (Part No. LUB-STRRT-12- 00) alternately into each carburetor / ZMU02361 each intake manifold.
Seal replacement should be per- Antidote (INTERNAL): formed by an authorized Yamaha dealer Drink large quantities of water or milk prior to use. followed by milk of magnesia, beaten Grease all grease fittings.
Areas with damaged paint are the bottom cowling. Tighten the connec- more likely to corrode. If necessary, clean tor securely. and paint the areas. A touch-up paint is avail- ECM00540 CAUTION: able from your Yamaha dealer. Do not leave the garden hose connector...
If you or the owner is not famil- iar with machine servicing, this work should be done by your Yamaha dealer or other qualified mechanic. Maintenance, replacement, or repair of the emission control devices and sys- tems may be performed by any marine engine repair establishment or individual.
Refer to the sections in this chapter for explanations of each owner-specific action. The “ ” symbol indicates the check-ups which you may carry out yourself. The “ ” symbol indicates work to be carried out by your Yamaha dealer. Initial Every 50 hours Item...
Maintenance EMU28931 Greasing Yamaha marine grease (Water resistant grease) VZ200D, VZ225D, VZ250D, VZ300D ZMU01986 sparks, which could lead to explosion or EMU28951 Cleaning and adjusting spark plug fire. EWM00560 The spark plug is an important engine com- WARNING ponent and is easy to inspect. The condition...
ZMU01892 Check the fuel lines for leaks, crack, or mal- 1. Spark plug gap function. If a problem is found, your Yamaha 2. Spark plug I.D. mark (NGK) dealer or other qualified mechanic should re- pair it immediately.
Gasoline is highly flammable, and its va- pors are flammable and explosive. If you have any question about properly doing this procedure, consult your Yamaha dealer. Do not perform this procedure on a hot or running engine. Allow the engine to cool.
If any water is found in the fuel, the parts while the engine is running. Yamaha portable fuel tank or other fuel 2-hp models: The propeller rotates tanks should be checked and cleaned.
There is a water trap at the bottom of the en- leaks from the joints between the exhaust gine oil tank. If water or foreign matter is vis- cover, cylinder head, and body cylinder. ible in this trap, consult your Yamaha dealer. EMU29153 Checking power trim and tilt system EWM00430...
Unlock the tilt sup- port lever. Tilt the outboard motor down. Check that the tilt rod and trim rods operate smoothly. NOTE: Consult your Yamaha dealer if any operation is abnormal. ZMU01897 EMU29171 Checking propeller Checkpoints...
NOTE: eration and be lost. If the shear pin equipped: it is designed to Apply Yamaha marine grease or a cor- break if the propeller hits a hard underwater rosion resistant grease to the propeller obstacle to help protect the propeller and shaft.
Never get under the lower unit while it NOTE: is tilted, even when the tilt support lever For disposal of used oil consult your Yamaha or knob is locked. Severe injury could dealer. occur if the outboard motor accidental- With the outboard motor in a vertical po- ly falls.
Maintenance EMU29312 EMU29320 Inspecting and replacing anode(s) Checking battery (for electric start Yamaha outboard motors are protected from models) corrosion by sacrificial anodes. Inspect the EWM00330 WARNING external anodes periodically. Remove scales from the surfaces of the anodes. Consult a Battery electrolytic fluid is dangerous;...
Maintenance NOTE: If a battery selector switch is desired, consult your Yamaha dealer about correct wiring. EMU29370 Disconnecting the battery Disconnect the BLACK cable from the NEG- ATIVE (-) terminal first. Then disconnect the RED cable from the POSITIVE (+) terminal.
Q. Has fuel pump malfunctioned? If your outboard motor requires repair, bring A. Have serviced by a Yamaha dealer. it to your Yamaha dealer. If the engine trouble warning indicator is Q. Are spark plug(s) fouled or of incorrect flashing, consult your Yamaha dealer.
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Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel. Q. Is carburetor clogged? A. Have serviced by a Yamaha dealer. Q. Is fuel filter clogged? A. Clean or replace filter. Q. Is fuel joint connection incorrect? A.
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Trouble Recovery A. Have serviced by a Yamaha dealer. Q. Are weeds or other foreign matter tangled on gear housing? Q. Is load on boat improperly distributed? A. Remove foreign matter and clean lower A. Distribute load to place boat on an even unit.
(if equipped). Replace Q. Is steering pivot loose or damaged? it with a spare one of the proper amperage. A. Tighten or have serviced by a Yamaha EWM00630 dealer. WARNING Be sure to use the specified fuse.
EMU29760 Treatment of submerged motor If the outboard motor is submerged, immedi- ately take it to a Yamaha dealer. Otherwise some corrosion may begin almost immedi- ately. If you cannot immediately take the outboard motor to a Yamaha dealer, follow the proce- dure below in order to minimize engine dam- age.
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Spray “Fogging Oil” or supply engine oil through the intake manifold and spark plug holes while rotating the flywheel manually. ZMU01911 Take the outboard motor to a Yamaha dealer as soon as possible. ECM00400 CAUTION: Do not attempt to run the outboard motor...
Consumer information EMU29840 IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE U.S.A. OR CANADA...
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Printed in Japan April 2004–0.6 × 1 ! Printed on recycled paper...
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(A l’usage du concessionnaire) MODÉLE ET NO. DE SÉRIE DU MOTEUR HORS-BORD (sur l’étiquette d’identification de la presse de fixation) YAMAHA DEALER NUMBER NO. DU CONCESSIONNAIRE YAMAHA DEALER NAME YAMAHA MOTOR CO., LTD. NOM DU MADE IN JAPAN CONCESSIONNAIRE PAYS D'ORIGINE JAPON USAGE...
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PLACE POSTAGE HERE ATTN: WARRANTY DEPARTMENT...