TOHATSU M4C Owner's Manual
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TOHATSU M4C Owner's Manual

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OWNER'S
MANUAL
M 4C
5B
OB No.003-11068-5

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Summary of Contents for TOHATSU M4C

  • Page 1 OWNER’S MANUAL M 4C OB No.003-11068-5...
  • Page 2 YOUR TOHATSU OUTBOARD MOTOR OWNER REGISTRATION AND IDENTIFICATION TO THE EXTENT PERMITTED BY APPLICABLE LAW, YOUR OUTBOARD MOTOR WILL NOT BE COVERED BY THE APPLICABLE LIMITED WARRANTY, IF THIS PROCEDURE IS NOT FOLLOWED. PRE-DELIVERY CHECK Limited Warranty...
  • Page 3 Serial Number To You, Our Customer TOHATSU CORPORATION...

  • Page 4: Table Of Contents

    CONTENTS GENERAL SAFETY INFORMATION SPECIFICATIONS NAMES OF PARTS INSTALLATION 1. Mounting the outboard motor on boat PRE-OPERATING PREPARATIONS 1. Recommended gasoline types 2. Recommended engine oil 3. Break-in ENGINE OPERATION 1. Starting 2. Warming up the engine 3. Forward and reverse 4.
  • Page 6 INDEX GENERAL SAFETY INFORMATION 1. SPECIFICATIONS 2. NAMES OF PARTS 3. INSTALLATION 4.PRE-OPERATING PREPARATIONS 5.ENGINE OPERATION 6.REMOVING AND CARRYING THE OUTBOARD MOTOR 7.TRAILERING 8.ADJUSTMENT 9.INSPECTION AND MAINTENANCE 10.TROUBLESHOOTING 11.TOOL KIT AND SPARE PARTS 12.OPTIONAL ACCESSORIES 13.PROPELLER TABLE...

  • Page 7: General Safety Information

    GENERAL SAFETY INFORMATION NOTICE : DANGER/WARNING/CAUTION/Note Failure to observe will result in severe personal injury or death, and possibly property damage. Failure to observe could result in severe personal injury or death, or property damage. Failure to observe could result in personal injury or property damage. EMERGENCY STOP SWITCH Accidental activation of the Emergency Stop Switch (such as the tether being pulled out in heavy seas) could cause passengers to lose their balance and even fall overboard,...
  • Page 8 SAFE OPERATION OF BOAT SERIOUS INJURY IS LIKELY IF A PERSON IN THE WATER MAKES CONTACT WITH A MOVING BOAT, GEAR HOUSING, PROPELLER, OR ANY SOLID DEVICE RIGIDLY ATTACHED TO A BOAT OR GEAR HOUSING. SERVICING, REPLACEMENT PARTS & LUBRICANTS MAINTENANCE MOUNTING...

  • Page 9: Specifications

    SPECIFICATIONS 4C, 5B-D MODEL 5B-D Item Overall Length mm (in) Overall Width mm (in) mm (in) Overall Height mm (in) UL mm (in) Transom Height S·L·UL mm (in) kg (lb) Weight kg (lb) kg (lb) Output kW (Hp) Max. Operating Range Idle Speed in Forward Gear Idle Speed in Neutral Gear Engine Type...

  • Page 10: Names Of Parts

    NAMES OF PARTS 4C, 5B-D...

  • Page 11: Mounting The Outboard Motor On Boat

    INSTALLATION Transom matching 1. Mounting the outboard motor on boat 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. If in doubt, contact your dealer.
  • Page 12 INSTALLATION Mounting bolts should be installed with the bolt head at inside surface of the transom. Mounting bolts installed with the threaded end at the inside surface of the transom can cause personal injury. • Mounting the outboard motor without following this manual can lead to unsafe conditions such as poor maneuverability, lack of control or fire.

  • Page 13: Pre-Operating Preparations

    PRE-OPERATING PREPARATIONS 1. Recommended gasoline types Consult an authorized dealer for details on handling of gasoline, if necessary. Gasoline and its vapors are very Use of low-quality gasoline results in flammable and can be explosive. a short engine life as well as starting When carrying a fuel tank containing difficulties and other engine problems.
  • Page 14 PRE-OPERATING PREPARATIONS Use of alcohol free gasoline Use of gasoline containing alcohol can cause engine starting and/or operating difficulties, wear of and damages to engine parts, and deterioration of chemical parts, which may lead to shortening of your outboard motor’s life. Do not fill the fuel tank over capacity.

  • Page 15: Recommended Engine Oil

    PRE-OPERATING PREPARATIONS 2. Recommended engine oil Do not mix different brands of oil. Mixing different brands of oil, or different Mixing Ratio types of oil even if the brand is the same, may cause gelling, resulting in possible filter screen blockage. This could result in serious engine damage because of impaired lubrication performance.
  • Page 16 PRE-OPERATING PREPARATIONS Engine oil – gasoline mixing procedure ● Do not use other than two stroke engine oil with specified grade, or the engine may be damaged. ● Do not use fuel prepared in other than specified mixing ratio. - Lack of engine oil can cause severe engine trouble such as piston seizure.

  • Page 17: Break-In

    PRE-OPERATING PREPARATIONS 3. Break-in ● During the break-in period, never run 0 – 10 10 min – After 3 – 5 hrs the engine continuously at high speed. 3 hrs 5 hrs ● After running-in is completed, select Less Less Full the correct propeller so that the Throttle...

  • Page 18: Engine Operation

    ENGINE OPERATION ENGINE OPERATION 1. Starting In case engine starts in gear, do not start cruising. Stop engine immediately and consult an authorized dealer. Do not operate the engine with gear case out of water. Severe personal injury, or engine damage will result.
  • Page 19 ENGINE OPERATION If the engine starts in gear, do not use it. Contact an authorized dealer.

  • Page 20: Warming Up The Engine

    ENGINE OPERATION If the recoil starter fails to operate 2. Warming up the engine If the engine is operated without water discharging from the check port or idle port, the engine may over heat. Be careful that your clothes or other items do not get caught in the rotating engine parts.

  • Page 21: Forward And Reverse

    ENGINE OPERATION Engine speed 3. Forward and reverse Before shifting into forward or reverse, make sure that boat is properly moored and outboard motor can be steered fully to the right and left. Make sure that no swimmer(s) is ahead or astern of the boat. Propeller selection •...
  • Page 22 ENGINE OPERATION Be sure to warm up engine well before starting cruise. Operating cold engine may cause damage to your motor. Severe damage, and personal injury, may occur if shifting at high engine speed. Engine must be in the slow idle position before shifting is attempted.

  • Page 23: Stopping

    ENGINE OPERATION 5. Trim angle 4. Stopping ■ Proper trim angle ■ Improper trim angle • Do not shift into Reverse during planing, or control will be lost leading to serious personal injury, boat may swamp, and/or hull may be damaged. •...

  • Page 24: Tilt Up, Tilt Down And Shallow Water Operation

    ENGINE OPERATION 6. Tilt up, tilt down and shallow water operation When tilting up or down, be careful not to place your hand between the swivel bracket and the stern bracket. Be sure to tilt the outboard motor down slowly. •...

  • Page 25: Shallow Water Operation

    ENGINE OPERATION Tilt down • Do not put hand or finger in between outboard motor body and Shallow water operation clamp bracket when adjusting trim angle to prevent injury in case the outboard motor body falls. • When tilting up outboard motor with During shallow water operation, be fuel joint for over a few minutes, careful not to place your hand between...
  • Page 26 ENGINE OPERATION • Run at lowest possible speed when While in shallow water drive position, using shallow water drive. do not operate the outboard motor in • Tilt lock is disabled when in shallow reverse. Operate the outboard motor water drive position. at slow speed and keep the cooling •...

  • Page 27: Removing And Carrying The Outboard Motor

    REMOVING AND CARRYING THE OUTBOARD MOTOR 1. Removing the outboard motor 3. Storing the outboard motor Engine may be hot immediately after operating and could cause burns if touched. Allow Engine to cool down before attempting to carry the outboard. 2.

  • Page 28: Trailering

    TRAILERING TRAILERING Do not go under outboard motor tilted up even if it is supported by support bar, or accidental fall of outboard motor could lead to severe personal injury. Close air vent screw of fuel tank and fuel cock before carrying or storing outboard motor and fuel tank, or fuel may leak, potentially catching fire.

  • Page 29: Adjustment

    ADJUSTMENT ADJUSTMENT 1. Steering friction 2. Throttle grip Do not overtighten the throttle grip or remote control tensioner or it could result in difficulty of movement resulting in the loss of control causing an accident and could lead to severe injury.

  • Page 30: Inspection And Maintenance

    INSPECTION AND MAINTENANCE Care of your outboard motor • Your personal safety and that of your passengers depends on how well you maintain your outboard motor. Carefully observe all of the inspection and maintenance procedures described in this section. • The maintenance intervals shown in the checklist apply to an outboard motor in normal use.

  • Page 31: Daily Inspection

    INSPECTION AND MAINTENANCE 1. Daily inspection Do not use outboard motor if any abnormality is found during pre-operation check or it could result in severe damage to the motor or severe personal injury. Item Points to Check Action Fuel System Electrical Equipment Throttle System...
  • Page 32 INSPECTION AND MAINTENANCE Washing outboard motor ■ Use flushing plug. Keep cooling water passage free of clogs, or lack of cooling water flow could lead to engine overheating, potentially resulting in engine trouble. Do not start engine without removing propeller, or accidentally turning propeller could cause personal injury.

  • Page 33: Replacing The Propeller

    INSPECTION AND MAINTENANCE Replacing the propeller Do not begin propeller removal and installation procedure with spark plug caps attached, shift in forward Do not hold propeller with hand(s) or reverse, main switch at other than when loosening or tightening propeller "OFF", engine stop cord attached to nut.
  • Page 34 INSPECTION AND MAINTENANCE Replacing the spark plugs • Do not reuse spark plug with damaged insulation, or sparks can leak through crack, potentially leading to electric shock, explosion and/or fire. • Do not touch spark plugs immediately after stopping engine as they will be hot and could cause severe burns if touched.

  • Page 35: Periodic Inspection

    INSPECTION AND MAINTENANCE 2. Periodic inspection Servicing Interval Item Action Remarks 10 hours 50 hours Every 100 hours or 6 1 month 3 months months *Carburetor ● Fuel filter ● ● ● Fuel System Piping ● ● ● Fuel tank ●...

  • Page 36: Fuel Tank

    INSPECTION AND MAINTENANCE Cleaning the fuel filters and the ■ 5B-D fuel tank Engine Filter Gasoline and its vapors are very flammable and can be explosive. • Do not start this procedure while engine is operating or hot even after stopping it. Fuel tank filter •...
  • Page 37 INSPECTION AND MAINTENANCE Replacing gear oil • Be sure that outboard motor is secured to transom or service stand, or accidental drop or fall of outboard motor could lead to severe personal injury. • Be sure to lock outboard motor if it is tilted up, or accidental fall of outboard motor could lead to severe personal injury.

  • Page 38: Off-Season Storage

    INSPECTION AND MAINTENANCE 3. Off-season storage Before servicing the motor for storage: • Remove the battery cables. • Remove the spark plug caps from the spark plugs. • Do not run the motor out of the water. Be sure to use cloth to remove fuel remaining in the cowl and dispose of it ■...

  • Page 39: Pre-Season Check

    INSPECTION AND MAINTENANCE 4. Pre-season check 5. Motor submerged in water Do not attempt to start submerged outboard motor immediately after it is recovered, or engine could be severely damaged.

  • Page 40: Cold Weather Precautions

    INSPECTION AND MAINTENANCE 6. Cold weather precautions 7. Checking after striking underwater object...

  • Page 41: Troubleshooting

    TROUBLESHOOTING Possible cause Empty fuel tank ● ● Incorrect connection of fuel sysytem ● ● ● ● ● ● ● Air entering fuel line ● ● ● ● ● ● ● Deformed or damaged fuel pipe ● ● ● ● ●...
  • Page 42 TROUBLESHOOTING Possible cause Spark plugs other than specified ● ● ● ● ● ● ● Dirt, soot, etc. on spark plugs ● ● ● ● ● ● No spark or weak spark ● ● ● ● ● ● Short circuit of engine stop switch ●...

  • Page 43: Tool Kit And Spare Parts

    TOOL KIT AND SPARE PARTS Items Quantity Remark...

  • Page 44: Optional Accessories

    OPTIONAL ACCESSORIES...

  • Page 45: Propeller Table

    PROPELLER TABLE PROPELLER TABLE...
  • Page 46 INJURY OR DEATH. KEEP THIS MANUAL IN A SAFE LOCATION FOR FUTURE REFERENCE. Copyright © 2014 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...
  • Page 47 OWNER’S MANUAL TOHATSU CORPORATION Address : 5-4, 3-chome, Azusawa, Itabashi-ku, TOKYO, 174-0051 JAPAN Phone : TOKYO (03)3966-3117 FAX : TOKYO (03)3966-2951 Website : www.tohatsu.co.jp 003-11068-5 1103NB Printed in Japan...

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M5b-d

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