TOHATSU M 40D2 Owner's Manual
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TOHATSU M 40D2 Owner's Manual

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  • Page 3 OWNER’S MANUAL M 40D M 50D OB No.003-11038-CAF1...
  • Page 4 INJURY OR DEATH. KEEP THIS MANUAL IN A SAFE LOCATION FOR FUTURE REFERENCE. Copyright © 2016 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 5 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 procedures described later in this manual should be followed carefully.

  • Page 6: Serial Number

    ENOM00005-A Serial Number In the space below, please record the outboard motor's serial number (indicated both on the bottom cowl and on the cylinder block). The serial number will be needed when order- ing parts, and when making technical or warranty inquiries. Serial Number: ENOF01900-0 ENOF01901-0...
  • Page 7 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,”...

  • Page 9: Table Of Contents

    CONTENTS 1. GENERAL SAFETY INFORMATION ....... 10 2. SPECIFICATIONS ..........12 3.
  • Page 10 8. Operation with multiple outboard motors ......80 11. TROUBLESHOOTING ......... . 81 12.
  • Page 11 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.

  • Page 12: 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 13 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 recommended lubricants. ENOM00011-A MAINTENANCE As the owner of this outboard motor, you should be acquainted with correct maintenance procedures following maintenance section of this manual (See page 62).

  • Page 14: Specifications

    SPECIFICATIONS ENOM00810-B MODEL FEATURE Model M40D2 M50D2 Type EFTO EPTO EFTO EPTO Transom heights Tiller Handle Remote Control Multi-function tiller handle Power Tilt Gas-assisted tilt Mnual tilt *1: Option ENOM00811-B MODEL NAME EXAMPLE M50D2 MFL Product Horse Minor Starter Steering Lubrication Model description genera-...
  • Page 15 Genuine Gear Oil or API GL5, SAE #80 to #90, approx. 500ml (16.9 fl.oz) Gear Shift Dog clutch (F-N-R) Gear Reduction Ratio 1.85 (13 : 24) Remark: Specifications subject to change without notice. Tohatsu outboard is power rated in accordance with ISO8665 (propeller shaft output).
  • Page 16 Genuine Gear Oil or API GL5, SAE #80 to #90, approx. 500mL Gear Shift Dog clutch (F-N-R) Gear Reduction Ratio 1.85 (13 : 24) Remark: Specifications subject to change without notice. Tohatsu outboard is power rated in accordance with ISO8665 (propeller shaft output).

  • Page 17: Parts Name

    PARTS NAME ENOM01653-0 40D2MF/50D2MF ENOF1902-0 1 Tilt Handle 10 Oil Plug (lower) 19 Starter Handle 2 Top Cowl 11 Water Strainer 20 Stop Switch 3 Hook Lever 12 Oil Plug (upper) 21 Choke Knob 4 Water Check Port 13 Clamp Bracket 22 Anode 5 Reverse Lock Lever 14 Thrust Rod...
  • Page 18 PARTS NAME ENOM01656-0 40D2EFTO/50D2EFTO ENOF01952-0 1 Tilt Handle 12 Water Strainer 23 Pilot Lamp 2 Top Cowl 13 Oil Plug (upper) 24 Main Switch 3 PTT Switch 14 Clamp Bracket 25 Battery Cords 4 Hook Lever 15 Thrust Rod 26 Power Trim & Tilt 5 Water Check Port 16 Clamp Screw 27 Anode...
  • Page 19 PARTS NAME ENOM01657-0 40D2EPO/50D2EPO ENOF01953-0 1 Tilt Handle 11 Water Strainer 21 Oil Tank 2 Top Cowl 12 Oil Plug (upper) 22 Fuel Filter 3 Hook Lever 13 Clamp Bracket 23 Spark Plug 4 Water Check Port 14 Thrust Rod 24 Oil Filter 5 Reverse Lock Lever 15 Clamp Screw...
  • Page 20 PARTS NAME ENOM01658-0 40D2EPTO/50D2EPTO ENOF01954-0 1 Tilt Handle 10 Propeller 19 Battery Cords 2 Top Cowl 11 Oil Plug (lower) 20 Power Trim & Tilt 3 PTT Switch 12 Water Strainer 21 Anode 4 Hook Lever 13 Oil Plug (upper) 22 Oil Tank 5 Water Check Port 14 Clamp Bracket...
  • Page 21 PARTS NAME ENOM00822-0 Remote control box & Fuel tank ENOF00127-F Control Lever Fuel Gauge Neutral Lock Arm Air Vent Screw PTT Switch Fuel Tank Cap Free Throttle Lever Fuel Connector (Engine side) Main Switch Primer Bulb Stop Switch Fuel Connector (Fuel tank side) Stop Switch Lock Stop Switch Lanyard...

  • Page 22: Label Locations

    LABEL LOCATIONS ENOM01659-0 Warning label locations ENOF01955-0...
  • Page 23 LABEL LOCATIONS Warning label urge to read the owner’s Warning regarding gasoline (See manual . page 29). ENOF00005-E Warning regarding gasoline (See ENOF00005-W Warning regarding rotating object. page 29). ENOF00005-L 3C7-72182-2 Warning regarding gasoline (See Warning regarding high voltage. page 29). 3C8-72181-0 Warning regarding engine oil replenish- ment.
  • Page 24 LABEL LOCATIONS ENOM01001-0 Serial number label locations r o t l a i ENOF01904-0 1. Model code(Model name) 2. Rated power 3. Dry mass weight 4. Serial No. 5. Manufacture name 6. Manufacture address...

  • Page 25: Installation

    INSTALLATION Do not operate the outboard motor until it ENOM00024-A has been securely mounted on the boat in 1. Mounting the outboard motor on accordance with the instructions below. boat ENOW00009-0 ENOW00006-B WARNING WARNING Mounting the outboard motor without following this manual can lead to unsafe Before installing the outboard motor on the conditions such as poor maneuverabil- boat, hang the outboard motor with the...
  • Page 26 INSTALLATION please consult your authorized dealer. ENOM00025-A Position ... Above keel line Single-engine Installation Set engine at center of boat. 10−30 mm (0.4−1.2 in) ENOF01344-0 1. Bottom of hull 2. Anti ventilation plate ENOW00007-0 CAUTION Before beginning the running test, check ENOF01141-0 that the boat with maximum capacity 1.
  • Page 27 INSTALLATION ENOM00830-C Mounting bolts 234 (9.21”) Manual tilt type 117 (4.61”) 117 (4.61”) 1. To attach the outboard motor to the 39 (1.54”) boat, tighten the clamp screws by 25 (0.98”) 64 (2.52”) 25 (0.98”) turning their handles. 89 (3.50”) Also, use the bolts to secure the out- ø13 board motor brackets on transom...

  • Page 28: Remote Control Device Installation

    INSTALLATION ENOM00840-0 2. Remote control device (12.9”) installation ENOW00850-0 Remote control box location ø12.5 1, 2 ø12.5 (9.9”) ENOF00613-0 View A ENOF00841-0 ENOW00008-A CAUTION Install the remote control box in a position where it is easy to reach and operate the Mounting bolts should be installed with controls.

  • Page 29: Battery Installation

    INSTALLATION In case battery electrolyte comes in con- tact with: Skin, flush thoroughly with water. Eye, flush thoroughly with water, and then seek immediate medical treatment. In case battery electrolyte is swallowed: Seek immediate medical treatment. ENOW00013-A ENOF00842-0 WARNING Measure the distance from the remote Battery generates explosive hydrogen gas.
  • Page 30 INSTALLATION mended can lead to poor performance of, and/or damage to, the electrical system. ENON00006-A1 Note Recommended battery: 12V 70AH (800 Marine Cranking Amps (MCA) or 650 Cold Cranking Amps (CCA)) Specifications and features of batteries vary among the manu- facturers.

  • Page 31: Pre-Operating Preparations

    The fuel system components on your gasoline in the fuel tank for long periods TOHATSU engine will withstand up to 10% should be avoided. Long periods of stor- age, common to boats, create unique prob- ethyl alcohol (hererinafter referred to as the lems.

  • Page 32: Fuel Filling

    PRE-OPERATING PREPARATIONS age if alcohol has washed protective oil When or before refueling: films from internal components. Be sure to remove the static electricity charged in your body before refueling. The sparks due to static electricity may ENOW00018-0 cause explosion of flammable gasoline. WARNING Stop the engine, and do not start the engine during refueling.

  • Page 33: Engine Oil Recommendation

    PRE-OPERATING PREPARATIONS ENOF00027-A 1. Air vent screw 2. Fuel tank cap ENOF01963-0 2. Open the fuel tank cap slowly. 1. Genuine of recommended engine oil 3. Fill the fuel carefully not to over flow. 2. Filler lid 3. Oil tank cap ENOW0002A-A CAUTION Use of engine oils that do not meet these...
  • Page 34 PRE-OPERATING PREPARATIONS Pre-mixing type When portable fuel tank is used for Add engine oil into fuel oil tank. The mixing operation of outboard motor(s): ratio with gasoline is 50 : 1 (50 parts gaso- Pour engine oil into fuel tank, and then, gasoline.
  • Page 35 PRE-OPERATING PREPARATIONS Pour engine oil into fuel container, and During break-in then, gasoline. Add engine oil into fuel tank. The mixing Put cap on the container, and close ratio with gasoline during break-in is 50:1 tightly. (50 parts oil and one part gasoline). Mix Shake the container to mix engine oil well by hand.
  • Page 36 PRE-OPERATING PREPARATIONS ENOM00645-0 Oil pump air vent Visually check whether there is air in the oil through the vinyl pipe connecting the oil tank with the oil pump. If present, Purge the air as follows: Loosen the air vent screw on the oil pump to purge the air, and tighten it when all air, as seen through the vinyl pipe on the oil pump side, has been purged.

  • Page 37: Break-In

    PRE-OPERATING PREPARATIONS ]ENOM00033-A 4. Break-In Your new outboard motor and lower unit ENOW00023-0 require break-in for the moving compo- CAUTION n e n t s a c c o r d i n g t o t h e c o n d i t i o n s Operating the outboard motor without described in the following time table.

  • Page 38: Warning System

    PRE-OPERATING PREPARATIONS ENOM00039-0 5. Warning system If outboard motor encounters an abnormal condition of fault, the warning horn will emit a continuous beep or intermittent short beeps and the warning lamp (LED) will synchronize with the horn and engine ENOF01957-0 speed will be limited (engine will not be stopped).
  • Page 39 PRE-OPERATING PREPARATIONS ENOM00041-D Warning indicators, faults and remedy Warning indicators Description of faults Remedy Sound High Lamp speed speed Engine speed exceeds maximum allowable RPM Continuous*1 Low oil level Continuous*1 Over heating Continuous*1 *1 Remote control type only High speed ESG (Electronic Safety Governor) High speed ESG is a device to prevent over revolution of the engine.
  • Page 40 PRE-OPERATING PREPARATIONS Remedy Reduce the throttle to less than half opening, and move to safe place quickly, and stop the engine. Check the propeller for bent or dam- aged blades. Consult an authorized dealer if engine shows the same result even after replacing propeller with new one.

  • Page 41: Engine Operation

    ENGINE OPERATION ENOM00042-0 ENOW00027-C Before starting CAUTION Before starting engine for the first time ENOW00022-C after reassembling engine or off-season CAUTION storage, disconnect stop switch lock and crank approximately 10 times in order to The engine oil is drained for shipping from circulate the engine oil.

  • Page 42: Fuel Feeding

    ENGINE OPERATION 1. Full open the air vent screw on the fuel tank cap. ENOF00651-A ENOF00027-A 1. Air vent screw 2. Fuel tank cap 2. Open the fuel tank cap slowly and release internal pressure completely. After that, close the fuel tank. 3.

  • Page 43: Starting The Engine

    ENGINE OPERATION 4. Squeeze primer bulb until it becomes ENOW00036-0 stiff to feed fuel to carburetor. Direct CAUTION arrow mark upward when priming. Be sure to stop engine immediately if cool- ing water check port is not discharging water, and check if cooling water intake is blocked.
  • Page 44 ENGINE OPERATION 3. Set the throttle grip to START position. ENOM01662-0 Tiller handle type 1. Be sure to install the stop switch lock to the stop switch, and attach the stop switch lanyard securely to the operator or to the operator's PFD (Personal Flo- tation Device.) ENOF01908-0 1.
  • Page 45 ENGINE OPERATION (For manual starter type) 7. Check the cooling water from cooling- water check port. 4. Pull the starter handle slowly until you feel engagement, keep pulling till you feel less resistance. Then pull it quickly. repeat if necessary until started. ENOF01911-0 1.

  • Page 46: Emergency Starting

    ENGINE OPERATION ENON00504-0 ENON00035-A Note Note The free throttle lever can not be raised The free accel lever can not be raised when when the control lever shift is in Forward or the control lever shift is in Forward or Reverse.
  • Page 47 ENGINE OPERATION 1. Remove the top cowl. 4. Insert the knotted end of the starter rope into the notch in the flywheel and wind the rope around the flywheel sev- eral turns clockwise. ENOF01961-0 ENOF01345-0 2. Remove starter lock cable from recoil 5.

  • Page 48: Warming Up The Engine

    ENGINE OPERATION 7. Set the control lever in the Neutral ENOM00044-A Engine speeds position. Idling speed after warming up. 8. Pull the starter handle slowly until you Clutch in (In gear) Clutch off (Out of gear) feel engagement, keep pulling till you 750 rpm 900 rpm feel less resistance.
  • Page 49 ENGINE OPERATION Do not shift into Reverse during cruis- ENOM00890-A Tiller handle type ing, or control may be lost, falling down or causing passenger(s) to be thrown ENOW00865-A overboard. Leading to serious personal CAUTION injury, and steering system and/or shift- ing mechanism may be damaged.
  • Page 50 ENGINE OPERATION Forward 1. Quickly push the control lever to the Forward (F) position 32°, where the gear is connected, while lifting up on the lock button located under the con- trol lever grip. 2. Further forward motion will open the throttle.

  • Page 51: Stopping The Engine

    ENGINE OPERATION ENOM00049-A 6. Stopping the engine ENOW00868-0 WARNING Be careful not to remove engine stop switch lanyard from engine accidentally while boat is running. Sudden stop of engine can cause loss of steering control. It can also cause loss of boat speed, possi- ENOF01958-0 bly leading the crew(s) and or objects on 1.

  • Page 52: Steering

    ENGINE OPERATION ENOW00869-0 ENOM00920-0 7. Steering WARNING After stopping the engine: ENOW00870-0 Close the air vent screw on the fuel tank WARNING cap. Disconnect the fuel connector of the Sudden steering may cause passenger(s) engine and the fuel tank. to be thrown overboard or falling down. Disconnect the battery cord, after each use.

  • Page 53: Trim Angle

    ENGINE OPERATION ENOM00050-0 ENOM00052-0 Proper trim angle 8. Trim angle The position of the thrust rod is correct if the hull is horizontal during operation. ENOW00043-A WARNING Adjust the trim angle when the engine is stopped. Do not put hand or finger in between outboard motor body and clamp bracket when adjusting trim angle to prevent injury in case the outboard motor body...
  • Page 54 ENGINE OPERATION Manual Tilt type 4. Change the thrust rod position as fol- lowing picture. ENOF00674-A ENOF01238-1 1. Thrust rod 1. Push in 2. Higher 2. Rise the stopper 3. Lower 3. Pull out 5. Reinstall the thurst rod securely. Power Tilt type 6.

  • Page 55: Tilt Up And Down

    ENGINE OPERATION 6. Operate the Power Tilt switch and position for about a minute to allow water to drain from inside the engine. lower the outboard. ENOM00062-0 ENOM00060-A Manual Tilt type 9. Tilt up and down Tilt up Push the reverse lock lever down until it ENOW00055-0 stops.
  • Page 56 ENGINE OPERATION ENOF01318-0 ENOF00059-0 1. Tilt stopper 1. Reverse lock lever 2. Tilt up position The outboard motor can also be tilted up 3. Tilt down position and down using the switch provided under ENOM00069-A the bottom cowl. Power Trim & Tilt type Tilt up 1.

  • Page 57: Shallow Water Operation

    ENGINE OPERATION manual relief valve is not closed, the out- ENOW00053-0 board motor will tilt up when operated in CAUTION reverse. While in shallow water drive position, do ENOW00873-0 not operate the outboard motor in Reverse. Operate the outboard motor at slow speed WARNING and keep the cooling water intake sub- merged.
  • Page 58 ENGINE OPERATION ENOM0006A-0 Power Tilt type 1. Operate the Power Tilt switch and tilt the outboard motor up into desired shallow water running position. ENOF00059-0 ENOF00067-0 1. Reverse lock lever 2. Tilt up position 3. Tilt down position 2. Return to normal running position: Put the reverse lock lever in the tilt down position, slightly lift up the out- board motor, and then put it down.

  • Page 59: Removing And Carrying The Outboard Motor

    REMOVING AND CARRYING THE OUTBOARD MOTOR ENOM00070-A 1. Removing the outboard motor ENOW00890-A WARNING Before removing the outboard motor on the boat, hang the outboard motor with the hoist or equivalent device by attaching the engine hanger to the outboard. Use the hoist with allowable load is 250 kg (550 lbs) or above.

  • Page 60: Traillering

    REMOVING AND CARRYING THE OUTBOARD MOTOR Otherwise, engine damage or property damage could result from leaking oil. ENOF00680-0 ENOM00072-A 3. Traillering ENOF01727-0 ENOW00072-0 Keep the outboard motor in a vertical posi- CAUTION tion when carrying. Trailering in the tilted position may cause The optional outboard motor stand is rec- damage to the outboard motor, boat, etc.
  • Page 61 REMOVING AND CARRYING THE OUTBOARD MOTOR It is intended to support the outboard motor while the boat is docked, beached, etc. When transporting a boat on a trailer with the outboard motor still attached, discon- nect the fuel line from the outboard motor beforehand and keep the outboard motor in the normal running position or on a tran- som saver bar.

  • Page 62: Adjustment

    ADJUSTMENT Friction adjustment of the throttle grip can ENOM00073-A 1. Steering friction be made with the throttle adjustment screw. Tiller handle type ENOW00074-A WARNING Do not overtighten the steering friction lever it could result in difficulty of move- ment resulting in the loss of control caus- ing an accident and could lead to severe injury.

  • Page 63: Trim Tab Adjustment

    ADJUSTMENT If the boat veers toward the left direct the trim tab towards A (left from rear of boat). If the boat veers toward the right direct the trim tab towards B (right from rear of boat). ENOF00078-0 1. Throttle friction adjustment screw 2.

  • Page 64: 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 main- tenance as suggested in the maintenance schedules that follow. ENOW00077-0 CAUTION Your personal safety and that of your passengers depends on how well you...

  • Page 65: Daily Inspection

    INSPECTION AND MAINTENANCE ENOM01664-0 1. Daily Inspection Perform the following checks before and ENOW00078-0 after use. WARNING Do not use outboard motor if any abnor- mality is found during pre-operation check or it could result in severe damage to the motor or severe personal injury.
  • Page 66 INSPECTION AND MAINTENANCE ENOM00082-A Engine oil replenishing ENOW00079-A CAUTION Do not add engine oil of brand and grade other than existing one. In case engine oil of other brand or grade is added, drain all oil and ask dealer for treatment. In case other than engine oil such as gasoline is put in the oil chamber, empty the chamber and ask dealer for treat-...
  • Page 67 INSPECTION AND MAINTENANCE ENON00026-0 Note It is recommended to check chemical prop- erties of water on which your outboard motor is regularly used. If outboard motor is used in salt water, brackish water or water with a high acidic level, use fresh water to remove salt, chemicals or mud from exterior and cool- ing water passage after every cruising or before storing outboard motor for long...
  • Page 68 And be sure to remove the propeller, when If the fuse continues to blow, request an starting the engine in the test tank. (See authorized Tohatsu dealer to inspect the page 70) outboard motor. 1. Stop the engine and disconnect the battery cable from the battery negative (-) terminal.

  • Page 69: Periodic Inspection

    INSPECTION AND MAINTENANCE ENOM01006-0 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 number of months, whichever comes first.
  • Page 70 INSPECTION AND MAINTENANCE ENON00030-0 Note Your outboard motor should receive careful, and complete inspection at 300 hours. This is the best time for major maintenance procedures to be carried out. ENOM00093-A ENOM00094-0 Fuel filters and fuel tank cleaning Fuel filter (for engine) 1.
  • Page 71 INSPECTION AND MAINTENANCE 5. Remove fuel and any water or debris board motor could lead to severe per- sonal injury. from the cup, filter and hoses. 6. Reassemble all parts. ENON00934-0 Note ENOM00096-A Please dispose of used oil in a manner that Fuel filter (for fuel tank) is compatible with the environment.

  • Page 72: Propeller Replacement

    INSPECTION AND MAINTENANCE fire prevention and environment protection regulations. ENON00032-0 Note If water in the oil, giving it a milky colored appearance. Contact your dealer. ENOM00086-A Propeller replacement ENOW00084-0 WARNING ENOF01333-0 Do not begin propeller removal and installation procedure with spark plug 4.
  • Page 73 INSPECTION AND MAINTENANCE 1. Put a piece of wood block between 7. Install a new split pin into the nut hole propeller blade and anti-ventilation and bend it. plate to hold propeller. ENOF00084-D ENOM00087-B Spark plugs replacement ENOW00087-0 ENOF00084-B WARNING 2.
  • Page 74 INSPECTION AND MAINTENANCE 5. Inspect the spark plug. Replace the spark plug if the electrodes are worn or i f t h e i n s u l a t o r s a re c r a c k e d o r chipped.

  • Page 75: Anode Replacement

    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 origi- nal size, replace it. ENON00029-0 Notes Never grease or paint the anode.
  • Page 76 INSPECTION AND MAINTENANCE 2. Oil level ENOM00089-B Power Tilt oil checking Recommended oil ENOW00088-0 Use an automatic transmission fluid or WARNING equivalent. Recommended oils are as shown below. Be sure that outboard motor is secured to transom or service stand, or acciden- ATF Dexron III tal drop or fall of outboard motor could lead to severe personal injury.
  • Page 77 INSPECTION AND MAINTENANCE ENOM00960-0 Grease point Apply water proof grease to the parts shown below. ENOF01928-0...

  • Page 78: Off-Season Storage

    INSPECTION AND MAINTENANCE 2. Remove the fuel hose from the out- ENOM00100-A 3. Off-season storage board motor. 3. Drain all fuel from the fuel hoses, fuel ENOW00934-0 pump, fuel filter (See page 68) and car- WARNING buretor (See page 78), and clean these parts.

  • Page 79: Adding A Fuel Stabilizer

    INSPECTION AND MAINTENANCE 8. Stand the outboard motor up vertically in a dry place. ENOF00680-0 ENOM00950-A Adding a fuel stabilizer When adding a fuel stabilizer additive (commercially available), first fill the fuel tank with fresh oil and fuel. If the fuel tank is only partially filled, air in the tank can cause the fuel to deteriorate during stor- ENOF01921-0...
  • Page 80 INSPECTION AND MAINTENANCE 8. Check the drained fuel for the pres- ENOM00970-A Fuel system draining ence of water or other contaminants. If ENOW00028-A either is present, reassemble the out- WARNING board motor, refill the carburetor with fuel, and then drain the fuel again. For details on handling fuel, contact an Repeat this procedure until no water or authorized dealer.

  • Page 81: Pre-Season Check

    INSPECTION AND MAINTENANCE 4. Charge the battery completely before 7. Start the engine and warm up the storing it for the winter. engine for 3 minutes in the “NEUTRAL” position. 5. Recharge the battery once a month to prevent it from discharging and the 8.

  • Page 82: Cold Weather Precautions

    INSPECTION AND MAINTENANCE ENOM00106-A ENOM00121-0 6. Cold weather precautions 8. Operation with multiple outboard motors If you moor your boat in cold weather at temperatures below 0°C (32°F), there is When operating the outboard motors in the danger of remained water freezing in reverse at more than the lowest speed, be the cooling water pump, which may dam- sure that all engines are running.

  • Page 83: Troubleshooting

    TROUBLESHOOTING ENOM01608-0 If you encounter problem with the engine, check the list below and locate the problem you are experiencing. Then follow the suggested remedies. Do not hesitate to contact your dealer, as professionals advice and assistance is the best way to keep the engine in optimum condition.
  • Page 84 TROUBLESHOOTING Unstable Cannot Engine engine Abnor- Abnor- Difficult obtain Overheat- starts. but Poor running mally high mally low to start high ing of stops idling speed or engine engine engine engine engine soon engine speed speeds speeds stops No sparks or weak sparks Insufficient cooling water flow...

  • Page 85: Tool Kit And Spare Parts

    TOOL KIT AND SPARE PARTS ENOM01665-0 The following a list of the tools and spare parts provided with the motor. Name Quantity Remark Tool Bag Socket Wrench (21mm) Socket Wrench (10 x 13) Servicing Tools Socket Wrench Handle Pliers Screwdriver (Phillips-type and flat Adapter-type head) Emergency starter rope (1,600mm)

  • Page 86: Propeller Table

    PROPELLER TABLE ENOM01610-0 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. 40D2, 50D2 5000 to 5800 rpm 40 50 Propeller Size (Diameter Pitch)
  • Page 88 OWNER’S MANUAL M 40D M 50D 003-11038-CAF1 1512NB Printed in Japan...
  • Page 90  ...

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M50d2

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