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Related Manuals for Yamaha E25B
Summary of Contents for Yamaha E25B
- Page 1 E25B OWNER’S MANUAL 69R-28199-27-E0...
- Page 2 EMU25051 Read this owner’s manual carefully before operating or working on your outboard motor. Keep this manual onboard in a waterproof bag when boating. This manual should stay with the outboard motor if it is sold.
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Page 3: Important Manual Information
Yamaha. If you have any question about the Some countries have laws or regulations re- operation or maintenance of your outboard stricting users from taking the product out of motor, please consult a Yamaha dealer. -
Page 4: Table Of Contents
Table of contents General information ......1 Fuel joint.......... 11 Fuel gauge ........11 Identification numbers record..1 Fuel tank cap........11 Outboard motor serial number ..1 Air vent screw........11 Key number........1 Remote control ........ 11 EC label........... 1 Remote control lever ....... - Page 5 Table of contents Filling fuel for portable tank ..... 22 Cleaning fuel filter ......49 Gasoline and oil mixing (100:1) ..23 Inspecting idling speed....50 Operating engine......24 Checking wiring and connectors ..50 Feeding fuel (portable tank) .... 24 Exhaust leakage......
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Page 6: General Information
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... -
Page 7: C-Tick Label
General information EMU25382 Important labels EMU25395 Warning labels ZMU01696 EMU25213 C-Tick label Engines affixed with this label conform to ZMU04735 certain portion(s) of the Australian Radio Communications Act. ZMU02898 ZMU05721 EMU25401 Label 1. C-Tick label location EWM01260 WARNING Be sure shift control is in neutral before starting engine. -
Page 8: Caution Labels
General information starting device. The engine will not start unless the shift control is in neutral position. EMU25465 Caution labels ZMU04736 EMU30480 Label ECM01450 CAUTION: Use premix fuel only. -
Page 9: Safety Information
Safety information EMU33620 come entangled, preventing it from function- Safety information ing. Observe these precautions at all times. Do not route the cord where it is likely to be EMU33630 accidentally pulled out. If the cord is pulled Rotating parts during operation, the engine will shut off and Hands, feet, hair, jewelry, clothing, PFD you will lose most steering control. -
Page 10: Boating Safety
Have an approved personal flotation device tions. Overloading or incorrect weight (PFD) on board for every occupant. Yamaha distribution can compromise the boats han- recommends that you must wear a PFD dling and lead to an accident, capsizing or whenever boating. -
Page 11: Weather
Safety information EMU33790 Weather Stay informed about the weather. Check weather forecasts before boating. Avoid boating in hazardous weather. EMU33880 Passenger training Make sure at least one other passenger is trained to operate the boat in the event of an emergency. -
Page 12: Basic Requirements
10% and sources of ignition. the fuel meets minimum octane ratings. Stop engine before refueling. Yamaha does not recommended gasohol Refuel in a well-ventilated area. Refuel containing methanol because it can cause portable fuel tanks off the boat. -
Page 13: Remote Control Requirements
18 volts or working correctly and you should dis- higher with the above models. Consult your continue using the outboard. Contact Yamaha dealer for details on installing an optional Rectifier Regulator. your Yamaha dealer. EMU34190 EMU25692... -
Page 14: Start-In-Gear Protection
Basic requirements where a different propeller would be more appropriate. Your Yamaha dealer can help you select the right propeller for your boating needs. Select a propeller that will allow the engine to reach the middle or upper half of the operating range at full throttle with the maximum boat- load. -
Page 15: Basic Components
EMU2579B Main components NOTE: * May not be exactly as shown; also may not be included as standard equipment on all mod- els. E25B, 25B, 25X, 30H ZMU05723 1. Top cowling 15. Tilt lock lever 2. Top cowling lock lever 16. -
Page 16: Fuel Joint
Basic components fuel tank, its function is as follows. EMU26180 Remote control EWM00020 The remote control lever actuates both the WARNING shifter and the throttle. The electrical switch- The fuel tank supplied with this engine is es are mounted on the remote control box. its dedicated fuel reservoir and must not be used as a fuel storage container. -
Page 17: Neutral Interlock Trigger
Basic components 2. Forward “ ” 3. Reverse “ ” 4. Shift 5. Fully closed 6. Throttle 7. Fully open EMU26201 Neutral interlock trigger To shift out of neutral, first pull the neutral in- terlock trigger up. 1. Fully open 2. -
Page 18: Gear Shift Lever
Basic components ZMU02945 ZMU02937 EMU25961 EMU25922 Throttle indicator Gear shift lever The fuel consumption curve on the throttle Pulling the gear shift lever towards you puts indicator shows the relative amount of fuel the engine in forward gear so that the boat consumed for each throttle position. -
Page 19: Engine Shut-Off Switch
Basic components there is too much resistance, it could be cure place on your clothing, or your difficult to move the remote control lever arm or leg while operating. or throttle grip, which could result in an Do not attach the cord to clothing that accident. -
Page 20: Engine Stop Button
Basic components 2. Cord EMU26001 Engine stop button To open the ignition circuit and stop the en- gine, push this button. ZMU02942 EMU26090 Main switch The main switch controls the ignition system; its operation is described below. “ ” (off) ZMU02905 With the main switch in the “... -
Page 21: Trim Tab
Basic components set according to operator preference. An ad- If the boat tends to veer to the right (star- justing screw or bolt is located on the swivel board side), turn the trim tab end to the star- bracket. board side “B” in the figure. ZMU02908 ZMU02289 To increase resistance, turn the adjuster... -
Page 22: Tilt Lock Mechanism
Basic components ZMU02947 ZMU02917 EMU30530 ECM00660 Tilt lock mechanism CAUTION: The tilt lock mechanism is used to prevent Do not use the tilt support lever or knob the outboard motor from lifting out of the wa- when trailering the boat. The outboard ter when in reverse gear. -
Page 23: 2-Pin Connector
ZMU03026 ECM00090 CAUTION: Do not continue to operate the engine if a warning device has activated. Consult your Yamaha dealer if the problem can- not be located and corrected. EMU26817 Overheat warning This engine has an overheat-warning de- vice. If the engine temperature rises too high,... -
Page 24: Operation
Operation EMU26902 Installation The information presented in this section is intended as reference only. It is not possible to provide complete instructions for every possible boat and motor combination. Prop- er mounting depends in part on experience and the specific boat and motor combination. EWM01590 WARNING ZMU01760... -
Page 25: Clamping The Outboard Motor
Test runs at different heights can help de- cable attachment and the other to a se- termine the optimum mounting height. cure mounting point on the boat. Other- Consult your Yamaha dealer or boat man- wise the engine could be completely lost... -
Page 26: Breaking In Engine
(25:1) Secure the clamp bracket to the transom using the bolts provided with the out- board (if packed). For details, consult your Yamaha dealer. EWM00650 WARNING Avoid using bolts, nuts or washers other than those contained in the engine pack- aging. -
Page 27: Pre-Operation Checks
Make sure there are no fuel leaks or gaso- WARNING line fumes. Gasoline and its vapors are highly flam- Check fuel line connections to be sure they mable and explosive. Keep away from are tight (if equipped Yamaha fuel tank or sparks, cigarettes, flames, or other boat tank). -
Page 28: Gasoline And Oil Mixing (100:1)
Make sure that the oil and gasoline are Wipe up any spilled fuel. mixed. If equipped with a built-in fuel tank Fuel tank capacity (if equipped Yamaha Pour oil into a clean fuel can, and then fuel tank): add gasoline. -
Page 29: Operating Engine
Operation EMU27450 line to the joint on the fuel tank. Operating engine EMU27463 Feeding fuel (portable tank) 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. -
Page 30: Starting Engine
Operation or leg. Then install the clip on the other end of the cord into the engine shut-off switch. EWM00121 WARNING Attach the engine shut-off cord to a se- cure place on your clothing, or your arm or leg while operating. Do not attach the cord to clothing that could tear loose. - Page 31 Operation ZMU02954 ZMU02956 Pull out / turn the choke knob fully. After After the engine starts, slowly return the the engine starts, replace / return the manual starter handle to its original po- knob to the home position. sition before releasing it. Slowly return the throttle grip to the fully closed position.
- Page 32 Operation ZMU03087 ZMU03088 NOTE: Open the throttle slightly without shifting using the neutral throttle lever. You may The start-in-gear protection device prevents the engine from starting except when in neu- need to change the throttle opening slightly depending on engine tempera- tral.
- Page 33 Operation small amount and try again. Also if the en- gine is warm and fails to start, open the throttle a small amount and try to start the engine again. If the engine still fails to start, see page 57. EMU27643 Electric start / remote control models Place the remote control lever in neutral.
- Page 34 Operation the boat could slow rapidly. This could cause people and objects in the boat to be thrown forward. ZMU02314 NOTE: On remote controls equipped with a neu- tral throttle lever, a good starting point is to lift the lever just until you feel resistance, Turn the main switch to “...
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Page 35: Warming Up Engine
ZMU02316 the lower case or the cooling water pilot hole is blocked. Consult your Yamaha Immediately after the engine starts, re- dealer if the problem cannot be located lease the main switch and allow it to re- and corrected. - Page 36 Operation engine and allow it to warm up. To shift out of neutral Pull the neutral interlock trigger up (if equipped). 1. Neutral interlock trigger Move the remote control lever / gear shift lever firmly and crisply forward (for forward gear) or backward (for reverse ZMU05718 gear) [about 35°...
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Page 37: Stopping Boat
Operation pact the steering wheel or other parts of the boat. This could increase the risk of serious injury. It could also damage the shift mechanism. Do not shift into reverse while traveling at planing speeds. Loss of control, boat swamping, or damage to the boat could occur. -
Page 38: Trimming Outboard Motor
Operation gine shut-off switch, then turning the main switch to “ ” (off). START 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. -
Page 39: Adjusting Trim Angle For Manual Tilt Models
Operation ZMU02976 1. Trim rod Reposition the rod in the desired hole. To raise the bow (“trim-out”), move the rod away from the transom. To lower the bow (“trim-in”), move the rod to- ward the transom. Make test runs with the trim set to different ZMU02975 angles to find the position that works best for your boat and operating conditions. -
Page 40: Tilting Up And Down
Operation the boat is up about 3 to 5 degrees. With the and making it hard to increase speed. Oper- bow up, the boat may have a greater tenden- ating with excessive trim-in at higher speeds cy to steer to one side or the other. Compen- also makes the boat unstable. -
Page 41: Procedure For Tilting Up (Manual Tilt Models)
Operation the engine will be tilted for more than a few minutes. Otherwise fuel may leak. ECM00241 CAUTION: Before tilting the outboard motor, stop the engine by following the procedure on page 32. Never tilt the outboard mo- tor while the engine is running. Severe damage from overheating can result. -
Page 42: Procedure For Tilting Down (Manual Tilt Models)
Operation when trailering the boat. The outboard cause the outboard motor to lift out of motor could shake loose from the tilt sup- the water, resulting in loss of control. port and fall. If the motor cannot be trail- Do not rotate the outboard motor 180° ered in the normal running position, use and operate the boat in reverse. -
Page 43: Cruising In Other Conditions
Cruising in muddy or turbid water Yamaha strongly recommends that you use the optional chromium-plated water pump kit (available for V4 and large engines) if you use the outboard motor in water with a lot of... -
Page 44: Maintenance
Maintenance EMU31480 30HMH 550 mm (21.7 in) Specifications 30HW 550 mm (21.7 in) NOTE: E25BMH 550 mm (21.7 in) Weight (AL) S: “(AL)” stated in the specification data below 25BMH 53.0 kg (117 lb) represents the numerical value for the alumi- 25XMH 53.0 kg (117 lb) num propeller installed. -
Page 45: Transporting And Storing Outboard Motor
Maintenance 30HMH BR8HS-10 Regular unleaded gasoline 30HW BR8HS-10 Fuel tank capacity: E25BMH BR7HS-10 24 L (6.34 US gal) (5.28 Imp.gal) Spark plug gap: Recommended engine oil: 0.9–1.0 mm (0.035–0.039 in) YAMALUBE 2-stroke outboard motor Control system: 25BMH Tiller Fuel:oil ratio: Regular gasoline: 25XMH Tiller 25BMH 100 :1... -
Page 46: Clamp Screw Mounting Models
When storing your Yamaha outboard motor sition using a motor support device such as for prolonged periods of time (2 months or a transom saver bar. Consult your Yamaha longer), several important procedures must dealer for further details. be performed to prevent excessive damage. -
Page 47: Procedure
Maintenance lowing procedures. ECM01411 CAUTION: Do not place the outboard motor on its side before the cooling water has drained from it completely, otherwise water may enter the cylinder through the exhaust port and cause engine trou- ble. ZMU02051 Store the outboard motor in a dry, well- ventilated place, not in direct sunlight. -
Page 48: Lubrication
Keep batteries away from fire, sparks, Seal replacement should be performed or open flames (for example: welding by an authorized Yamaha dealer prior to equipment, lighted cigarettes, and so use. on.) Grease all grease fittings. For further de- DO NOT SMOKE when charging or han- tails, see page 47. -
Page 49: Cleaning The Outboard Motor
Fill each cell to the upper level with dis- chine servicing, this work should be done tilled water. by your Yamaha dealer or other qualified Store the battery on a level surface in a mechanic. cool, dry, well-ventilated place out of di- rect sunlight. -
Page 50: Maintenance Chart
When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use. 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... -
Page 51: Maintenance Chart (Additional)
Maintenance Initial Every 50 hours Item Actions 10 hours hours (6 hours (1 (1 month) months) months) year) Cleaning / adjustment / Spark plug(s) replacement EMU28874 Maintenance chart (additional) Every Item Actions 500 hours (2.5 years) 1000 hours (5 years) Exhaust guide, exhaust Inspection / replace- manifold... -
Page 52: Greasing
Maintenance EMU28941 Greasing Yamaha grease A (water resistant grease) Yamaha grease D (corrosion resistant grease; for propeller shaft) E25B, 25B, 25X, 30H ZMU02918 EMU28953 damaged insulator could allow external Cleaning and adjusting spark plug sparks, which could lead to explosion or... -
Page 53: Checking Fuel System
Instead, take the outboard motor to a When fitting the plug, always clean the gas- Yamaha dealer. You should periodically re- ket surface and use a new gasket. Wipe off move and inspect the spark plug because... -
Page 54: Inspecting Fuel Filter
Check the fuel lines for leaks, crack, or mal- There will be fuel in the fuel filter. Keep function. If a problem is found, your Yamaha away from sparks, cigarettes, flames or dealer or other qualified mechanic should re- other sources of ignition. -
Page 55: Inspecting Idling Speed
CAUTION: necessary. If any water is found in the This procedure must be performed while fuel, the Yamaha portable fuel tank or the outboard motor is in the water. A other fuel tanks should be checked and flushing attachment or test tank can be cleaned. -
Page 56: Exhaust Leakage
Maintenance turning. ZMU02087 EMU29120 ZMU01896 Exhaust leakage Start the engine and check that no exhaust leaks from the joints between the exhaust cover, cylinder head, and body cylinder. EMU29130 Water leakage Start the engine and check that no water leaks from the joints between the exhaust cover, cylinder head, and body cylinder. -
Page 57: Removing Propeller
Maintenance age. Apply Yamaha marine grease or a cor- rosion resistant grease to the propeller EMU30661 Removing propeller shaft. EMU29195 Install the spacer (if equipped), thrust Spline models washer, and propeller on the propeller Straighten the cotter pin and pull it out shaft. -
Page 58: Cleaning Fuel Tank
If you have any question about properly into the gear case which can cause gear doing this procedure, consult your damage. Consult a Yamaha dealer for re- Yamaha dealer. pair of the lower unit seals. Keep away from sparks, cigarettes,... -
Page 59: Inspecting And Replacing Anode(S)
Inspect ground leads attached to external cal regulations. anodes on equipped models. Consult a Empty the fuel tank into an approved Yamaha dealer for inspection and replace- container. ment of internal anodes attached to the pow- Pour a small amount of suitable solvent er unit. -
Page 60: Connecting The Battery
ECM00360 charge the battery when it is low. CAUTION: NOTE: A poorly maintained battery will quickly Consult a Yamaha dealer when charging or deteriorate. re-charging batteries. Ordinary tap water contains minerals harmful to a battery, and should not be EMU29332 used for topping up. -
Page 61: Disconnecting The Battery
A loose or im- properly fitting cover could allow water into the engine. Check the fitting of the top cowling by push- ing it with both hands. If it is loose have it re- paired by your Yamaha dealer. -
Page 62: Trouble Recovery
Therefore some items may not apply to your model. 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. - Page 63 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.
- Page 64 Q. Is fuel system obstructed? Q. Is water pump or thermostat faulty? A. Check for pinched or kinked fuel line or A. Have serviced by a Yamaha dealer. other obstructions in fuel system. Q. Is there excess water in fuel filter cup? Q.
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Page 65: Temporary Action In Emergency
EWM00630 Q. Is steering pivot loose or damaged? WARNING A. Tighten or have serviced by a Yamaha Be sure to use the specified fuse. An in- dealer. correct fuse or a piece of wire could allow EMU29433 excessive current flow. -
Page 66: Starter Will Not Operate
3. Spare fuse (20 A) dangerous. Keep loose clothing and NOTE: other objects away when starting the Consult your Yamaha dealer if the new fuse engine. Use the emergency starter rope only as instructed. Do not touch the fly- immediately blows again. -
Page 67: Treatment Of Submerged Motor
Treatment of submerged motor ZMU03000 If the outboard motor is submerged, immedi- ately take it to a Yamaha dealer. Otherwise Prepare the engine for starting. For fur- some corrosion may begin almost immedi- ther information, see page 25. Be sure ately. - Page 68 Drain the fuel from the carburetor, fuel filter, and fuel line. Feed fogging oil or engine oil through the carburetor(s) and spark plug holes while cranking with the manual starter or emergency starter rope. ZMU01911 Take the outboard motor to a Yamaha...
- Page 70 YAMAHA MOTOR CO., LTD. Printed in Japan April 2007–0.5 × 1 ! Printed on recycled paper...
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