Related Manuals for TOHATSU M2.5A2
Summary of Contents for TOHATSU M2.5A2
- Page 1 O W N E R’ S M A N U A L トーハツ船外機 オーナーズマニュアル Original instructions M 2.5A M 3.5A M 3.5B OB No.003-11045-9AK1...
- Page 2 MANUAL IN A SAFE LOCATION FOR FUTURE REFERENCE. Copyright © 2019 Tohatsu Corporation. All rights reserved. No part of this manual may be reproduced or transmitted in any from or by any means without the express written permission of Tohatsu Corporation.
- Page 3 ENOM00006-A To You, Our Customer Thank you for selecting a TOHATSU outboard motor. You are now the proud owner of an excellent outboard motor that will service you for many years to come. This manual should be read in its entirety and the inspection and maintenance proce- dures described later in this manual should be followed carefully.
- Page 4 ENOM00005-A Serial Number In the space below, please record the outboard motor's serial number. The serial num- ber will be needed when ordering parts, and when making technical or warranty inquir- ies. Serial Number: ENOF02001-0 ENOF02000-0 Serial Number: Date of purchase:...
- Page 5 ENOM00007-0 NOTICE: DANGER/WARNING/CAUTION/Note Before installing, operating or otherwise handling your outboard motor, be sure to thor- oughly read and understand this Owner's Manual and carefully follow all of the instruc- tions. Of particular importance is information preceded by the words “DANGER,” “WARNING,”...
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Page 7: Table Of Contents
CONTENTS 1. GENERAL SAFETY INFORMATION ........10 2. - Page 9 INDEX 1. GENERAL SAFETY INFORMATION 2. SPECIFICATIONS 3. PARTS NAME 4. LABEL LOCATIONS 5. INSTALLATION 6. PRE-OPERATING PREPARATIONS 7. ENGINE OPERATION 8. REMOVING AND CARRYING THE OUTBOARD MOTOR 9. ADJUSTMENT 10. INSPECTION AND MAINTENANCE 11. TROUBLESHOOTING 12. TOOL KIT AND SPARE PARTS 13.
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Page 10: General Safety Information
GENERAL SAFETY INFORMATION ENOM00009-0 SAFE OPERATION OF BOAT As the operator/driver of the boat, you are responsible for the safety of those aboard and those in other boat around yours, and for following local boating regulations. You should be thoroughly knowledgeable on how to correctly operate the boat, outboard motor, and accessories. - Page 11 GENERAL SAFETY INFORMATION ENOM00010-0 SERVICING, REPLACEMENT PARTS & LUBRICANTS We recommend that only an authorized service shop perform service or maintenance on this outboard motor. Be sure to use genuine parts, genuine lubricants, or recom- mended lubricants. ENOM00011-A MAINTENANCE As the owner of this outboard motor, you should be acquainted with correct mainte- nance procedures following maintenance section of this manual (See page 40).
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Page 12: Specifications
SPECIFICATIONS ENOM00810-B MODEL FEATURE Model M2.5A2 M3.5A2 M3.5B2 Type Transom heights Tiller Handle Remote Control Separate fuel tank Integral fuel tank Shifting Manual tilt *1: Option ENOM00811-B MODEL NAME EXAMPLE M3.5B2S Product genera- Model description Horse power Minor change Shaft length... - Page 13 1.85 (13 : 24) 2.15 (13 : 28) Operator Sound Pressure 81.8 (ICOMIA 39/94) dB (A) Hand Vibration Level (ICOMIA 38/94) m/s Remark: Specifications subject to change without notice. Tohatsu outboard is power rated in accordance with ISO8655 (propeller shaft output).
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Page 14: Parts Name
PARTS NAME ENOM01301-0 2.5A2, 3.5A2, 3.5B2 ENOF02002-0 Air Vent Screw Shift Lever(3.5B2 only) Tilt Stopper Fuel Tank Cap Handle Grip Stop Switch Top Cowl Carring Handle Carburetor Cover Plug Cap Cover Clamp Screw Chork Lever Fuel Cock Thrust Rod Drive Shaft Housing Cooling Warter Check Port Oil Plug (Upper) Grommet (3.5B2 only) -
Page 15: Label Locations
LABEL LOCATIONS ENOM00019-A Warning label locations 4, 5 ENOF02003-1 1-1.Warning label urge to read the owner’s Warning regarding fuel tank cap. (See page20, 25) manual. 1-2.Warning regarding stop switch (See page 32). ENOF02050-0 Warning regarding high temperature. 314X67531-3 3GR-76191-0... - Page 16 LABEL LOCATIONS Warning label urge to read the owner's manual. 3F0X72185-0 Warning regarding high temperature, high voltage, rotating object. 314X72185-0...
- Page 17 LABEL LOCATIONS ENOM01001-0 Serial number label locations r o t l a i CAN ICES-2/NMB-2 ENOF02048-1 1. Model code(Model name) 2. Rated power 3. Dry mass weight 4. Serial No. 5. Manufacture name 6. Manufacture address Description of serial number year code Last two digits of alphabet represent production year as below.
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Page 18: Installation
INSTALLATION Keep the outboard motor in a vertical ENOM00024-B 1. Mounting the outboard position when mounting. motor on boat ENOW00006-0 WARNING Most boats are rated and certified in terms of their maximum allowable horsepower, as shown on the boat’s certification plate. Do not equip your boat with an outboard motor that exceeds this limit. - Page 19 INSTALLATION ENOM00026-0 ENOM00831-0 Transom matching Mounting the outboard motor Be sure that the anti ventilation plate of 1. Set the outboard motor to appropri- the outboard motor is 30–50 mm (1.2–2 ate position. in) below the bottom of hull. 2. Tighten the clamp screws by turning If the above condition cannot be met due their handles.
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Page 20: Pre-Operating Preparations
ENOM00032-A GASOLINES CONTAINING CAUTION ALCOHOL When operating a TOHATSU engine on gaso- The fuel system components on your line containing alcohol, storage of gasoline in TOHATSU engine will withstand up to 10% the fuel tank for long periods should be ethyl alcohol (hererinafter referred to as avoided. -
Page 21: Engine Oil Recommendation
PRE-OPERATING PREPARATIONS protective oil films from internal compo- nents. Fuel by Oil Mixing (25:1, 50:1) ENOW00018-0 1.0L (25:1) 25 : 1 WARNING 0.5L (25:0.5) 0.4L Fuel leakage can cause fire or explosion, (10 : 0.4) 50 : 1 0.2L potentially leading to severe injury or loss of (10 : 0.2) life. -
Page 22: Fuel Filling
PRE-OPERATING PREPARATIONS through air vent screw when it is open. Leak- ing gasoline is a dangerous fire hazard. ENOW00028-A WARNING Consult an authorized dealer for details on handling gasoline, if necessary. Gasoline and its vapors are very flammable and can be explosive. When carrying a fuel tank containing gaso- line: Close the fuel tank cap and air vent screw... -
Page 23: Break-In
PRE-OPERATING PREPARATIONS Dispose aged or contaminated gasoline in accordance with local regulations. ENOW00029-A WARNING When opening fuel tank cap, be sure to fol- low the procedure described below. Fuel could blast out through the fuel tank cap in case the cap is loosened by using another procedure when internal pressure of fuel tank is raised by heat from sources such as ENOF02008-0... - Page 24 PRE-OPERATING PREPARATIONS ENOW00940-0 1–10 10 min – After CAUTION 3–5 hrs 3 hrs 5 hrs Less Less Full During the break-in period, never run the Throttle Idle than 1/2 than 3/4 throttle engine continuously at high speed. Position throttle throttle available After running-in is completed, select the correct propeller so that the engine...
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Page 25: Engine Operation
ENGINE OPERATION ENOM00042-0 Before starting ENOW00022-B CAUTION Be sure to fill the engine before star ting engine. (To properly fill the engine with oil ENOF02007-0 follow the instructions. See page 21) 1. Two turns the air vent screw 2. Fuel tank cap 2. -
Page 26: Starting The Engine
ENGINE OPERATION ENOM00045-D ENOW00032-B 2. Starting the engine CAUTION Do not try to crank after engine has started. ENOW00036-A CAUTION ENOW00941-0 When the engine is started in the test tank, CAUTION to avoid over heating and water pump dam- age, be sure the water level is at least 10 cm When the shift lever is at the “NEUTRAL”... - Page 27 ENGINE OPERATION 2. Set the shift lever in the Neutral posi- ENON00502-0 Note tion. (3.5B2 only) If engine does not start with 4 or 5 times starting operation, push the knob back and restart. 5. Pull the starter handle slowly until you feel engagement, keep pulling till you feel less resistance.
- Page 28 ENGINE OPERATION 6. When the engine has started, imme- Attach engine stop switch lanyard to clothing or any par t of body like arm diately return the choke lever to the before starting engine. Open position then move the throttle lever downward to slow speed.
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Page 29: Warming Up The Engine
ENGINE OPERATION 7. Pull the starter handle slowly until you 1. Cooling water check port feel engagement, keep pulling till you ENOM00044-B feel less resistance. Then pull it Engine speeds quickly. Idling speed after warming up. Trolling speed Idling speed Model (in Forward) (in Nutral) - Page 30 ENGINE OPERATION ENOW00861-0 ENOM00890-B Tiller handle type WARNING ENOW00867-0 Do not shift at high boat speed, or control WARNING may be lost, falling down or causing passen- ger(s) to be thrown overboard. Leading to Sudden acceleration and deceleration may serious personal injury. cause passenger(s) to be thrown overboard or falling down.
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Page 31: Stopping The Engine
ENGINE OPERATION Forward 1. Lower the throttle lever in order to reduce engine speed. 2. When the engine reaches trolling (or idling) speed, quickly pull the shift lever to the Forward position. Reverse 1. Lower the throttle lever in order to ENOF02025-0 reduce engine speed. -
Page 32: Steering
ENGINE OPERATION 3. Push the stop switch. ENOF02029-0 ENOF02027-0 1. Stop switch 1. Stop switch 2. Stop switch lock 2. Stop switch lock ENOM00910-0 Spare emergency stop switch lock (For 4. Close the air vent screw and fuel CE marking model) cock. -
Page 33: Trim Angle
ENGINE OPERATION Tiller handle type and readjust trim angle before continuing cruise. Right turn For outboard motor model with PTT Move the tiller handle to the left switch on the bottom cowl, do not oper- Left turn ate the switch during cruising, or control Move the tiller handle to the right. -
Page 34: Tilt Up And Down
ENGINE OPERATION ENOM00054-0 Improper trim angle (bow dips into the water) Set the thrust rod higher if the bow of the boat is below horizontal. ENOF01612-0 1. Push in ENOF00053-0 2. Pull out 5. Reinstall the thrust rod in the desired Manual Tilt type position securely. - Page 35 ENGINE OPERATION ENOW00057-0 CAUTION Do not tilt up outboard motor while engine operates, or no cooling water may be fed, leading to engine seizure due to overheating. ENON00921-0 Note Before tilting the outboard motor up, after stopping the motor leave it in the running position for about a minute to allow water to drain from inside the engine.
- Page 36 ENGINE OPERATION INCORRECT ENOF02033-1 ENOM00223-A Tilt down 1. Fully tilt up the outboard motor. 2. Pull out the tilt stopper. 3. Gently tilt down the outboard motor. ENOF02034-0 1. Tilt stopper...
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Page 37: Removing And Carrying The Outboard Motor
REMOVING AND CARRYING THE OUTBOARD MOTOR ENOM00070-B ENOW00066-1 1. Removing the outboard CAUTION motor Do not give a shock to an outboard motor during transportation. It becames a cause ENOW00064-B of breakage. CAUTION Do not carry or store outboard motor in any of positions described below. -
Page 38: Traillering
REMOVING AND CARRYING THE OUTBOARD MOTOR fully down. Trailering in the tilted position ENON00021-C Note may cause damage to the outboard motor, boat, etc. If the outboard motor must be laid down, If trailering with outboard motor fully down be sure drain the fuel from the fuel line is not available (the gear case skeg is too and carburetor in advance, then the port close to the road in a vertical position), fix... -
Page 39: Adjustment
ADJUSTMENT ENOM00073-E 1. Steering friction ENOW00074-E WARNING Do not over tighten the steering friction adjustment screw it could result in difficulty of movement resulting in the loss of control causing an accident and could lead to severe injury. ENON0506-0 Note The steering friction adjustment screw is used to adjust the friction load of the steering, but not to fix the steering. -
Page 40: Inspection And Maintenance
INSPECTION AND MAINTENANCE ENOM00077-0 Care of your outboard motor To keep your outboard motor in the best operating condition, it is very important that you perform daily and periodic maintenance as suggested in the mainte- nance schedules that follow. ENOW00077-0 CAUTION Your personal safety and that of your pas- sengers depends on how well you main-... -
Page 41: Daily Inspection
INSPECTION AND MAINTENANCE ENOM01305-0 1. Daily Inspection Perform the following checks before and ENOW00078-0 after use. WARNING Do not use outboard motor if any abnormal- ity is found during pre-operation check or it could result in severe damage to the motor or severe personal injury. - Page 42 INSPECTION AND MAINTENANCE ENOM00083-0 ENOM00085-B Washing outboard motor Flushing attachment (3.5B2 only) ENOW00922-0 ENOW00081-0 CAUTION WARNING To prevent the engine from starting when Do not start engine without removing pro- you are near the propeller, remove the stop peller, or accidentally turning propeller switch lock.
- Page 43 INSPECTION AND MAINTENANCE ENOM00085-A Flushing by test tank ENOW00081-0 WARNING Do not start engine without removing pro- peller, or accidentally turning propeller could cause personal injury. ENOW00082-0 WARNING Never start or operate the engine indoors or in any space which is not well ventilated. Exhaust gas contains carbon monoxide, a colorless and odorless gas which can be fatal if inhaled for any length of time.
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Page 44: Periodic Inspection
INSPECTION AND MAINTENANCE ENOM01306-0 2. Periodic Inspection It is important to inspect and maintain your outboard motor regularly. At each interval on the chart below, be sure to perform the indicated servicing. Maintenance intervals should be determined according to the number of hours or num- ber of months, whichever comes first. - Page 45 INSPECTION AND MAINTENANCE ENOM00093-A Fuel filters and fuel tank cleaning ENOW00093-B WARNING Gasoline and its vapors are very flammable and can be explosive. Keep out of reach of children. Avoid repeated or prolonged contact with skin or breathing of vapor. Do not start this procedure while engine is operating or hot even after stopping it.
- Page 46 INSPECTION AND MAINTENANCE 2. Remove the oil plugs (lower and 4. Install the upper oil plug, and then upper), and completely drain the gear remove oil tube nozzle and install the oil into a pan. lower oil plug. ENOW00095-0 CAUTION Do not reuse oil plug gasket.
- Page 47 INSPECTION AND MAINTENANCE 2. Propeller ENOM00232-C Propeller replacement 3. Split pin 2. Remove the shear pin from the shaft. ENOW00084-0 3. Apply water proof grease to the pro- WARNING peller shaft before installing a new Do not begin propeller removal and instal- propeller.
- Page 48 INSPECTION AND MAINTENANCE ENON00028-0 Note Spark plug torque: 27.0 Nm (20.0 ft-lb) [2.7 kgf-m] 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 turn past finger-tight.
- Page 49 INSPECTION AND MAINTENANCE ENOM00088-A Anode replacement A sacrificial anode protects the outboard motor from electrolytic corrosion. Anode is located on the gear case, cylinder etc.. When the anode is eroded more than 1/3 of original size, replace it. ENON00029-0 Notes Never grease or paint the anode.
- Page 50 INSPECTION AND MAINTENANCE ENOM00960-0 Grease point Apply water proof grease to the parts shown below. ENOF02044-0...
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Page 51: Off-Season Storage
INSPECTION AND MAINTENANCE 3. Remove the spark plugs and put a ENOM00100-A 3. Off-season storage teaspoon of engine oil or spray stor- age oil into the combustion chamber ENOW00097-0 through the spark plug holes. WARNING 4. Pull the ricoil starter several times to lubricate inside the cylinder. - Page 52 INSPECTION AND MAINTENANCE 2. Follow the instructions on the label ENOW00066-1 when adding the fuel stabilizer addi- CAUTION tive. Do not carry or store outboard motor in any 3. After adding the additive, let the out- of positions described below. board motor run in the water for 10 Otherwise, engine's exterior parts may be minutes to make sure any old fuel in...
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Page 53: Pre-Season Check
INSPECTION AND MAINTENANCE 1. Close the fuel cock. 7. Check the drained fuel for the pres- ence of water or other contaminants. If either is present, reassemble the outboard motor, refill the carburetor with fuel, and then drain the fuel again. -
Page 54: Submerged Outboard Motor
INSPECTION AND MAINTENANCE ENOM00105-D ENOM00107-A 5. Submerged outboard motor 7. Striking underwater object ENOW00098-0 ENOW00935-0 CAUTION CAUTION Do not attempt to start submerged outboard Striking the sea bottom or an underwater motor immediately after it is recovered, or object may severely damage the outboard engine could be severely damaged. -
Page 55: Troubleshooting
TROUBLESHOOTING ENOM01307-0 If you encounter a problem, consult the check list below to determine the cause and to take the proper action. An authorized dealer will always be happy to provide any assistance and information. Possible cause Empty fuel tank Incorrect connection of fuel system Air entering fuel line Deformed or damaged fuel pipe... -
Page 56: Tool Kit And Spare Parts
TOOL KIT AND SPARE PARTS ENOM01308-0 The following a list of the tools and spare parts provided with the motor. Name Quantity Remark Tool bag Pliers Socket wrench 10 × 13 mm Service tools Socket wrench 21 mm Socket wrench handle Screwdriver (Phillips-type Adapter-type and flat head) -
Page 57: Propeller Table
PROPELLER TABLE ENOM01309-0 To ensure optimum performance, the propeller should match the boat type and its load. Use a genuine propeller. A propeller must be selected so that the engine rpm measured at wide open throttle while cruising is within the recommended range. 2.5A2: 3800–5200 min (rpm) 3.5A2/3.5B2: 4200–5300 min... - Page 62 O W N E R’ S M A N U A L M 2.5A M 3.5A M 3.5B 5-4, Azusawa 3-Chome, Itabashi-Ku Tokyo 174-0051, Japan Tel: +81-3-3966-3117 Fax: +81-3-3966-0090 www.tohatsu.com...