Related Manuals for Yamaha E25B
Summary of Contents for Yamaha E25B
- Page 1 E25B OWNER’S MANUAL Read this manual carefully before operating this outboard motor. 69R-28199-28-E0...
- Page 2 EMU25052 Read this manual carefully before operating this 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
Any damage tain maximum enjoyment from your new resulting from neglect of these instructions is Yamaha. If you have any question about the not covered by warranty. operation or maintenance of your outboard Some countries have laws or regulations re- motor, please consult a Yamaha dealer. -
Page 4: Table Of Contents
Table of contents Safety information......1 Start-in-gear protection ....12 Engine oil requirements ....13 Outboard motor safety ....1 Fuel requirements ......13 Propeller..........1 Gasoline .......... 13 Rotating parts........1 Muddy or acidic water ....13 Hot parts ........... 1 Anti-fouling paint ...... - Page 5 Table of contents Installation ........25 tilt models)........46 Mounting the outboard motor ..25 Cruising in other conditions... 47 Clamping the outboard motor ..26 Maintenance ........48 Operation ......... 28 Transporting and storing outboard motor ......48 First-time operation ....... 28 Clamp screw mounting models ..
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Page 6: Safety Information
Safety information EMU33622 engine stops if the operator falls overboard Outboard motor safety or leaves the helm. This prevents the boat Observe these precautions at all times. from running away under power and leaving EMU36500 people stranded, or running over people or Propeller objects. -
Page 7: Modifications
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 8: Weather
Safety information Operate defensively at safe speeds and keep a safe distance away from people, ob- jects, and other boats. Do not follow directly behind other boats or ● waterskiers. Avoid sharp turns or other maneuvers that ● make it hard for others to avoid you or un- derstand where you are going. -
Page 9: 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 10: C-Tick Label
General information ZMU04730 ZMU01697 1. CE marking location ZMU06040 EMU25213 C-Tick label Engines affixed with this label conform to certain portion(s) of the Australian Radio Communications Act. ZMU05721 1. C-Tick label location... -
Page 11: Read Manuals And Labels
Read any manuals supplied with the boat. ● Read all labels on the outboard motor and the boat. ● If you need any additional information, contact your Yamaha dealer. EMU33831 Warning labels If these labels are damaged or missing, contact your Yamaha dealer for replacements. ZMU06042... - Page 12 General information ZMU05670 EMU33912 Contents of labels EWM01671 The above warning labels mean as follows. WARNING Read Owner’s Manuals and labels. ● EWM01691 Wear an approved personal flotation ● WARNING device (PFD). Emergency starting does not have start- Attach engine shut-off cord (lanyard) to ●...
- Page 13 General information EMU33843 Electrical hazard Symbols The following symbols mean as follows. Notice/Warning ZMU05666 Remote control lever/gear shift lever operat- ing direction, dual direction ZMU05696 Read Owner’s Manual ZMU05667 Engine start/ Engine cranking ZMU05664 Hazard caused by continuous rotation ZMU05668 ZMU05665...
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Page 14: Specifications And Requirements
Specifications and requirements EMU31480 Weight (AL) S: Specifications 25XMH 53.0 kg (117 lb) TIP: 30HMH 53.0 kg (117 lb) E25BMH 53.0 kg (117 lb) “(AL)” stated in the specification data below Weight (AL) L: represents the numerical value for the alumi- 25BMH 54.5 kg (120 lb) num propeller installed. -
Page 15: Installation Requirements
Specifications and requirements 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 30HMH Tiller 25XMH 100 :1 30HW Remote control 30HMH 100 :1 E25BMH Tiller 30HW 100 :1 Starting system:... -
Page 16: Mounting Motor
If the engine starts in gear, the boat can ● cessory battery, consult your Yamaha dealer move suddenly and unexpectedly, pos- about battery selection and correct wiring. sibly causing a collision or throwing EMU25730 passengers overboard. -
Page 17: Propeller Selection
Your Yamaha dealer can help you select the right propeller for your boating needs. Select a propeller that will allow the engine to reach... -
Page 18: Engine Oil Requirements
Specifications and requirements EMU25651 engine starting and running problems. Engine oil requirements Yamaha does not recommend gasohol con- taining methanol because it can cause fuel Recommended engine oil: system damage or engine performance YAMALUBE 2-stroke outboard motor problems. EMU36880 Muddy or acidic water... -
Page 19: Emergency Equipment
(including metric sizes), and electrical tape. Waterproof flashlight with extra batteries. ● An extra engine shut-off cord (lanyard) ● with clip. Spare parts, such as an extra set of spark ● plugs. Consult your Yamaha dealer for details. -
Page 20: Components
EMU2579H Components diagram TIP: * 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 16. Transom clamp handle 2. Top cowling lock lever 17. -
Page 21: Fuel Joint
Components be used as a fuel storage container. Com- mercial users should conform to relevant licensing or approval authority regula- tions. 1. Remote control lever 2. Neutral interlock trigger 3. Neutral throttle lever 4. Main switch / choke switch ZMU02284 5. -
Page 22: Neutral Interlock Trigger
Components 7. Fully open 2. Fully closed EMU26201 EMU26221 Neutral interlock trigger Choke switch To shift out of neutral, first pull the neutral in- To activate the choke system, press in the terlock trigger up. main switch while the key is turned to the “... -
Page 23: Throttle Grip
Components ZMU02938 ZMU02939 1. Throttle indicator 1. Neutral “ ” 2. Forward “ ” EMU25973 3. Reverse “ ” Throttle friction adjuster A friction device provides adjustable resis- EMU25941 tance to movement of the throttle grip or the Throttle grip remote control lever, and can be set accord- The throttle grip is on the tiller handle. -
Page 24: Engine Shut-Off Cord (Lanyard) And Clip
Components ZMU02941 ZMU03169 When constant speed is desired, tighten the 1. Engine shut-off switch adjuster to maintain the desired throttle set- 2. Cord ting. 3. Clip EMU25993 Engine shut-off cord (lanyard) and clip The clip must be attached to the engine shut- off switch for the engine to run. -
Page 25: Choke Knob For Pull Type
Components EMU26090 Main switch The main switch controls the ignition system; its operation is described below. “ ” (off) ● With the main switch in the “ ” (off) posi- tion, the electrical circuits are off, and the key can be removed. “... -
Page 26: Trim Tab
Components ZMU02908 ZMU02289 To increase resistance, turn the adjuster 1. Trim tab clockwise. 2. Bolt To decrease resistance, turn the adjuster counterclockwise. Bolt tightening torque: EWM00040 8.0 Nm (0.8 kgf-m, 5.8 ft-lb) WARNING EMU26261 Do not overtighten the friction adjuster. If Trim rod (tilt pin) there is too much resistance, it could be The position of the trim rod determines the... -
Page 27: Tilt Lock Mechanism
Components ZMU02947 ZMU02917 EMU30530 ECM00660 Tilt lock mechanism NOTICE 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 28: 2-Pin Connector
EMU26410 2-pin connector AC 12 V-40/60/80W power is delivered through this connector. When using it, keep in mind the following points: ZMU04737 Use a genuine Yamaha connector. ● Use lighting equipment only. ● Connect lighting equipment directly to the ●... -
Page 29: Engine Control System
Alert system ECM00091 NOTICE Do not continue to operate the engine if a alert device has activated. Consult your Yamaha dealer if the problem cannot be located and corrected. EMU2681A ZMU03026 Overheat alert This engine has an overheat-alert device. If the engine temperature rises too high, the alert device will activate. -
Page 30: Installation
Installation 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 31: Clamping The Outboard Motor
Other- Test runs at different heights can help de- wise the engine could be completely lost termine the optimum mounting height. if it accidentally falls off the transom. Consult your Yamaha dealer or boat man-... - Page 32 Secure the clamp bracket to the transom using the bolts provided with the out- board (if packed). For details, consult your Yamaha dealer. WARNING! Avoid using bolts, nuts or washers other than those contained in the engine packaging. If used, they must be of at...
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Page 33: Operation
Operation EMU36380 plane, then immediately reduce the First-time operation throttle to 3000 r/min or less. EMU30174 Next two hours: Breaking in engine Accelerate at full throttle onto plane, Your new engine requires a period of break- then reduce engine speed to three-quar- in to allow mating surfaces of moving parts to ter throttle (approximately 4000 r/min). -
Page 34: Fuel Level
If any water is found in the fuel, or if a gine top cowling, release the lock lever and significant amount of debris is found, the fuel lift off the cowling. tank should be checked and cleaned by a Yamaha dealer. ZMU06084 ZMU06044 EMU36440 Fuel system... -
Page 35: Engine Shut-Off Cord (Lanyard)
1. Engine shut-off switch 2. Cord 3. Clip ZMU06109 After installing, check the fitting of the top cowling by pushing it with both hands. If the top cowling is loose, have it repaired by your Yamaha dealer. 1. Cord 2. Clip... -
Page 36: Battery
Operation Stop the engine. Remove the portable tank from the boat. Be sure you are in a well-ventilated out- door area, either securely moored or trailered. Do not smoke and keep away from sparks, flames, static electric discharge, or other sources of ignition. If you use a portable container to store ZMU04677 and dispense fuel, use only an approved... - Page 37 Operation ture. If the mixture is not thoroughly mixed, ● or if the mixing ratio is incorrect, the following problems could occur. Low oil ratio: Lack of oil could cause ● major engine trouble, such as piston seizure. High oil ratio: Too much oil could cause ●...
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Page 38: Operating Engine
Operation the oil gradually as the gasoline is being add- connect the fuel line to the joint. Then ed to the tank. firmly connect the other end of the fuel EMU27451 line to the joint on the fuel tank. Operating engine EMU27464 Feeding fuel (portable tank) EWM00420... -
Page 39: Starting Engine
Operation EMU27492 TIP: Starting engine The start-in-gear protection device prevents EWM01600 the engine from starting except when in neu- WARNING tral. Before starting the engine, make sure Attach the engine shut-off cord to a se- that the boat is tightly moored and that cure place on your clothing, or your arm you can steer clear of any obstructions. - Page 40 Operation ZMU02955 ZMU02030 TIP: TIP: It is not necessary to use the choke when When the engine is cold, it needs to be ● ● starting a warm engine. warmed up. For further information, see If the choke knob is left in the “ ”...
- Page 41 Operation be thrown forward. Place the remote control lever in neutral. ZMU03200 TIP: ZMU03087 As a starting point, lift the lever just until ● you feel resistance, then lift slightly more. TIP: The neutral throttle lever can only be used ●...
- Page 42 Operation control. Also, without engine power, the boat could slow rapidly. This could cause people and objects in the boat to be thrown forward. Place the remote control lever in neutral. ZMU03008 After the engine starts, slowly return the manual starter handle to its original po- sition before releasing it.
- Page 43 Operation pressed in. START ZMU01880 ZMU02315 Open the throttle slightly without shifting TIP: using the neutral throttle lever or free ac- celerator. You may need to change the It is not necessary to use the choke when ● throttle opening slightly depending on starting a warm engine.
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Page 44: Checks After Starting Engine
Confirm that removing the clip from the en- ● blocked. Consult your Yamaha dealer if gine shut-off switch stops the engine. the problem cannot be located and cor- Confirm that the engine cannot be started ●... - Page 45 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 46: 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 47: Trimming Outboard Motor
Operation gine shut-off switch, then turning the main switch to “ ” (off). START EMU27862 Trimming outboard motor EWM00740 WARNING Excessive trim for the operating condi- tions (either trim up or trim down) can cause boat instability and can make ZMU02973 steering the boat more difficult. -
Page 48: 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 49: Tilting Up And Down
Operation 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. Resistance at sate for this as you steer. The trim tab can the bow is greatly increased, heightening the also be adjusted to help offset this effect. -
Page 50: Procedure For Tilting Up (Manual Tilt Models)
Operation few minutes. Otherwise fuel may leak. ECM00241 NOTICE Before tilting the outboard motor, stop ● the engine by following the procedure on page 41. Never tilt the outboard mo- tor while the engine is running. Severe damage from overheating can result. Do not tilt up the engine by pushing the ●... -
Page 51: Procedure For Tilting Down (Manual Tilt Models)
Operation the water, resulting in loss of control. Use extra care when operating in re- ● verse. Too much reverse thrust can cause the outboard motor to lift out of the water, increasing the chance of ac- cident and personal injury. ECM00260 NOTICE Do not tilt the outboard motor up so that... -
Page 52: Cruising In Other Conditions
Push the tilt lock lever down to the re- Cruising in muddy, turbid, or acidic water lease position. Yamaha strongly recommends that you use the optional chromium-plated water pump kit (see page 13) if you use the outboard motor in acidic water or water with a lot of sediment in it, such as muddy or turbid (cloudy) water. -
Page 53: Maintenance
Yamaha dealer sition using a motor support device such as prior to storage. However, you, the owner, a transom saver bar. Consult your Yamaha with a minimum of tools, can perform the fol- dealer for further details. -
Page 54: Procedure
Maintenance lowing procedures. ECM01411 NOTICE 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- ●... -
Page 55: Lubrication
Yamaha dealer. Seal replacement should be performed EMU37120 Periodic maintenance by an authorized Yamaha dealer prior to use. EWM02010 WARNING Grease all grease fittings. For further de- tails, see page 55. -
Page 56: Replacement Parts
EMU28511 Replacement parts If replacement parts are necessary, use only genuine Yamaha parts or parts of equivalent design and quality. Any part of inferior quality may malfunction, and the resulting loss of control could endanger the operator and passengers. -
Page 57: Maintenance Chart 1
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 20 hours Item... - Page 58 Inspection or replace- Thermostat ment as necessary Water inlet Inspection Main switch/stop Inspection or replace- switch/choke switch ment as necessary Wire harness connec- Inspection or replace- tions/Wire coupler con- ment as necessary nections Inspection and clean- (Yamaha) Fuel tank ing as necessary...
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Page 59: Maintenance Chart 2
Maintenance EMU34451 Maintenance chart 2 Every Item Actions 1000 hours Guide exhaust/exhaust Inspection or replace- manifold ment as necessary... -
Page 60: Greasing
Maintenance EMU28941 Greasing Yamaha grease A (water resistant grease) Yamaha grease D (corrosion resistant grease; for propeller shaft) E25B, 25B, 25X, 30H ZMU02918 EMU28954 ple, if the center electrode porcelain is very Cleaning and adjusting spark plug white, this could indicate an intake air leak or The spark plug is an important engine com- carburetion problem in that cylinder. -
Page 61: Checking Fuel Filter
Check the fuel filter periodically. If any water plug, always clean the gasket surface or foreign matter is found in the filter, clean or and use a new gasket. replace it. For cleaning or replacement of the fuel filter, consult your Yamaha dealer. -
Page 62: Inspecting Idling Speed
If you have difficulty ver- propeller from turning. ifying the idle speed, or the idle speed re- quires adjustment, consult a Yamaha dealer... -
Page 63: Removing Propeller
Otherwise the propeller could come off during opera- tion and be lost. Check the propeller shaft oil seal for dam- Apply Yamaha marine grease or a cor- ● age. rosion resistant grease to the propeller EMU30661 shaft. -
Page 64: Changing Gear Oil
Con- Never get under the lower unit while it ● sult a Yamaha dealer for repair of the is tilted, even when the tilt support lever lower unit seals. [ECM00711] or knob is locked. -
Page 65: Cleaning Fuel Tank
Remove the screws holding the fuel joint If you have any question about properly ● assembly. Pull the assembly out of the doing this procedure, consult your tank. Yamaha dealer. Keep away from sparks, cigarettes, ●... -
Page 66: Inspecting And Replacing Anode(S)
EMU29312 Inspecting and replacing anode(s) plosive hydrogen gas. When working Yamaha outboard motors are protected from near the battery: corrosion by sacrificial anodes. Inspect the Wear protective eye gear and rubber ●... -
Page 67: Connecting The Battery
3. Battery tery’s charge. If the battery needs charg- The electrical contacts of the battery and ing, consult your Yamaha dealer. cables must be clean and properly con- Check the battery connections. They nected, or the battery will not start the should be clean, secure, and covered by engine. -
Page 68: Trouble Recovery
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-alert indicator is flash- Q. Are spark plug(s) fouled or of incorrect ing, consult your Yamaha dealer. - Page 69 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 70 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 71: Temporary Action In Emergency
EWM00631 Q. Is steering pivot loose or damaged? WARNING A. Tighten or have serviced by a Yamaha Substituting an incorrect fuse or a piece dealer. of wire could allow excessive current EMU29433 flow. -
Page 72: Starter Will Not Operate
An unguarded, rotating flywheel is very ● 3. Spare fuse (20 A) dangerous. Keep loose clothing and Consult your Yamaha dealer if the new fuse other objects away when starting the immediately blows again. engine. Use the emergency starter rope EMU29533 only as instructed. -
Page 73: 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 34. Be sure ately. - Page 74 YAMAHA MOTOR CO., LTD. Printed in Japan April 2008–0.5 × 1 ! Printed on recycled paper...