TOHATSU MFS 4C Owner's Manual
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TOHATSU MFS 4C Owner's Manual

TOHATSU MFS 4C Owner's Manual

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OWNER'S
MANUAL
MFS
OB No.003-11059-B
4C
5C
6C

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  • Page 1 OWNER’S MANUAL OB No.003-11059-B...
  • Page 2 INJURY OR DEATH. KEEP THIS MANUAL IN A SAFE LOCATION FOR FUTURE REFERENCE. Copyright © 2009-2012 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 NOT BE COVERED BY THE APPLICABLE LIMITED WARRANTY, IF THIS PROCEDURE IS NOT FOLLOWED. ENOM00003-0 PRE-DELIVERY CHECK Be sure that the product has been checked by an authorized TOHATSU dealer before you take delivery. ENOM00004-0 Limited Warranty Please refer to the TOHATSU outboard motor Limited warranty provided to you with this product, the terms and conditions of which, as amended from time to time, are incorpo- rated by reference into the manual.

  • Page 4: Serial Number

    ENOM00006-0 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 5: Table Of Contents

    CONTENTS GENERAL SAFETY INFORMATION ....... . 8 1. SPECIFICATIONS ..........10 2.
  • Page 6 4. Pre-season check ......... . . 52 5.
  • Page 7 INDEX GENERAL SAFETY INFORMATION 1. SPECIFICATIONS 2. NAMES OF PARTS 3. LOCATIONS OF WARNING LABELS 4. INSTALLATION 5. PRE-OPERATING PREPARATIONS 6. ENGINE OPERATION 7. REMOVING AND CARRYING THE OUTBOARD MOTOR 8. TRAILERING 9. ADJUSTMENT 10. INSPECTION AND MAINTENANCE 11. TROUBLESHOOTING 12.

  • Page 8: General Safety Information

    GENERAL SAFETY INFORMATION 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 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 10: Specifications

    SPECIFICATIONS EENOM00401-0 4C(D) 5C(D) M6C(D) 5C(S) 6C(S) Item MODEL (Dual Tank) (Separate Tank) Overall Length mm (in) 783 (30.8) Overall Width mm (in) 343 (13.5) Except for USA and Canada model 1039 (40.9) 1053 (41.5) 1180 (46.5) 1307 (51.5) Overall Height S·L·UL mm (in) 1166 (45.9) For USA and Canada model...

  • Page 11: Names Of Parts

    NAMES OF PARTS ENOM00402-0 4C, 5C, 6C ENOF00401-0 Tilt Handle Thrust Rod Fuel Cock Top Cowl Clamp Bracket Primer Bulb Bottom Cowl Clamp Screw Fuel Tank Cooling Water Check Port Throttle Grip Fuel Pick up Elbow Tilt Lever Shift Lever Fuel Connector Steering Adjustment Screw Starter Handle...

  • Page 12: Locations Of Warning Labels

    LOCATIONS OF WARNING LABELS ENOM00403-0 Locations of warning labels ENOF00402-0 Warning label regarding owner’s man- Warning label on position of outboard ual, top cowl, engine stop switch, motor when setting down. engine oil level and unleaded gasoline. ENOF00006-0 Warning label regarding oil pressure (See page 22).
  • Page 13 LOCATIONS OF WARNING LABELS Only for EU model Warning label regarding emergency starting (See page 29). ENOF00128-0 Warning label regarding rotating parts, electrical shock and high temperature. ENOF00010-0 Only for USA and CANADA models When opening or closing fuel tank cap, be sure to observe warning note on fuelling.
  • Page 14 LOCATIONS OF WARNING LABELS Read manual thoroughly Gear shift lever operation direction, dual direction ENOF00115-0 Check oil level ENOF00122-0 Engine start/Engine cranking ENOF00116-0 Use unleaded gasoline only ENOF00123-0 Warning, rotating object ENOF00117-0 Lay as indicated ENOF00249-0 Warning, high voltage ENOF00118-0 Flammable - Keep Fire Away ENOF00204-0 Warning, high temperature...

  • Page 15: Installation

    INSTALLATION ENOM00024-0 1. Mounting the outboard motor on boat ENOW00006-0 30–50 mm WARNING (1.2–2 in) Most boats are rated and certified in terms of their maximum allowable horsepower, as shown on the boat’s certification plate. ENOF00410-0 Do not equip your boat with an outboard motor that exceeds this limit.

  • Page 16: Installing The Remote Control Devices

    1. Clamp screw WARNING ENON00401-0 Note When using other than Tohatsu's genuine remote control box, DO NOT select the one It is recommended to install upper mounting without neutral safety switch that prevents bolts with bolt head at inside surface of tran- in-gear start.

  • Page 17: Pre-Operating Preparations

    The fuel system components on your  Dispose aged or contaminated gasoline TOHATSU engine will withstand up to 10% in accordance with local regulations. alcohol content in the gasoline. But if the gasoline in your area contains either meth-...

  • Page 18: Low Permeation Fuel Hose Requirement

     Starting and operating difficulties ENOW00020-0 ENOW00018-0 CAUTION WARNING When operating a TOHATSU engine on Fuel leakage can cause fire or explosion, gasoline containing alcohol, storage of potentially leading to severe injury or loss gasoline in the fuel tank for long periods of life.

  • Page 19: Epa Pressurized Fuel Tank Requirements

    PRE-OPERATING PREPARATIONS  TOHATSU engine has used fuel hoses heating and cooling cycles of the outside for The Enviro nmental Protection air. This is normal. Agency (EPA) requires from January 1, 2011. *Please refer to See pages 23–28 when using this fuel tank.

  • Page 20: Recommended Engine Oil

    PRE-OPERATING PREPARATIONS ENON00007-0 Note ENOM00037-0 Use of engine oils that do not meet these 5. Recommended engine oil requirements will result in reduced engine life, and other engine problems. Use only high quality 4-stroke engine oil to insure performance and prolonged engine life.

  • Page 21: Break-In

    PRE-OPERATING PREPARATIONS ENOM00038-0 7. 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 22: Engine Oil Warning Lamp

    PRE-OPERATING PREPARATIONS ENOM00409-0 ENOM00410-0 8. Engine oil warning lamp 9. ESG (A device preventing over revolution) Oil pressure is required to lubricate internal engine parts. ESG is a device to prevent over revolution When the warning lamp (Red) is off, it indi- of the engine (more than approximately cates that oil pressure is present.

  • Page 23: Engine Operation

    ENGINE OPERATION ENOM00042-0 ENOM00411-0 Before starting 1. Filling the fuel ENOW00022-0 ENOW00028-0 CAUTION DANGER The engine oil is drained for shipping from Consult an authorized dealer for details on the factory. Be sure to fill the engine to the handling gasoline, if necessary. proper level before starting engine.
  • Page 24 ENGINE OPERATION ENOW00029-0 1. Full open the air vent screw WARNING 2. Open the fuel tank cap slowly. When opening fuel tank cap, be sure to fol- 3. When using integral tank low the procedure described below. Fuel Remove top cowl and fill the fuel not to could blast out through the fuel tank cap in over the full mark.
  • Page 25 ENGINE OPERATION For USA and Canada model 3. When using integral tank Remove top cowl and fill the fuel not to 1. Full open the air vent screw on the tank over the full mark. cap and release internal pressure. When using separate tank Fill the fuel carefully not to over flow.

  • Page 26: Feeding The Fuel

    ENGINE OPERATION ENOM00412-0 4. If you use a separate tank, connect the 2. Feeding the fuel fuel connector to the engine and squeeze primer bulb until it becomes Except for USA and Canada stiff to feed fuel to carburetor. Direct arrow mark upward when priming.
  • Page 27 ENGINE OPERATION from engine can cause increase of internal pressure of the tank dangerously. 2. When using integral tank Open the fuel tank cap slowly and release internal pressure completely. After that, close the fuel tank cap. When using separate tank Loosen the tank cap until contacts the tab lock and release internal pressure ENOF00426-0...

  • Page 28: Starting

    ENGINE OPERATION ENOM00413-0 3. Starting 1. Place the shift lever in the neutral posi- tion. ENOF00035-0 1. FDV in fuel hose 2. Sealing mechanism in fuel connector 3. Identification Do NOT use a primer bulb/hose assembly that does not contain a Fuel Demand Valve or a sealing mechanism as shown below: otherwise overflow the fuel system or fuel ENOF00429-0...
  • Page 29 ENGINE OPERATION high winds. Loss of control while mooring 5. Gentry pull the starter handle until you is another potential hazard. feel slight resistance (engagement) and To minimize accidental activation of the strongly pull the handle without a rest. Emergency Stop Switch, the 500 mm (20 inch.) stop switch tether is coiled and can extended to a full 1300 mm (51 inch.).
  • Page 30 ENGINE OPERATION 6. Confirm that the shift lever is at neutral position. 7. Pull the choke knob out when the engine is cold. 8. Pull the starter handle slowly until you feel engagement, keep pulling till you feel less resistance. Then pull it quickly. ENOF00433-0 3.

  • Page 31: Warming Up The Engine

    ENGINE OPERATION objects on the boat to be thrown for- ENOW00036-0 ward due to inertial force. CAUTION  Do not touch electrical components such as ignition coils, spark plug cables Be sure to stop engine immediately if cool- or spark plug caps when starting engine ing water check port is not discharging or while engine is in operation.
  • Page 32 ENGINE OPERATION the right and left. Make sure that no swim- ENOM00417-0 Forward mer(s) is ahead or astern of the boat. Turn the throttle grip to reduce engine speed. When the engine reaches trolling ENOW00038-0 (or idling) speed, quickly pull the shift lever WARNING to the Forward position.

  • Page 33: Stopping

    ENGINE OPERATION ENOM00419-0 ENON00402-0 Notes 6. Stopping  After stopping the engine, close the air vent screw on the tank cap.  Disconnect the fuel connector of the engine or the fuel tank. ENOM00050-0 7. Trim angle The trim angle of the outboard motor can be adjusted to suit the transom angle of ENOF00210-0 ENOF00439-0...
  • Page 34 ENGINE OPERATION ENOF00053-0 ENOF00052-0 1. Stop the engine. Remark: Thrust rod is for MF and EF, and preset knob is for EP. 2. Shift the outboard into neutral. 3. Raise the engine to the tilt up position. ENOW00043-0 4. Change the thrust rod position. WARNING 5.

  • Page 35: Tilt Up, Tilt Down And Shallow Water Operation

    ENGINE OPERATION ENOW00204-0 ENOM00423-0 Tilt up WARNING With the shift lever in Forward, fully tilt the motor up toward you by holding the tilt Excessive trim up or down may lead to unstable boat operation, potentially caus- handle provided at the rear of the top ing the steering difficulty that leads to acci- cowl.

  • Page 36: Shallow Water Operation

    ENGINE OPERATION  Tilt lock is disabled when in shallow ENOW00049-0 water drive position. WARNING  When driving shallow water, be careful not to strike outboard motor against sea  Do not put hand or finger in between bottom, or propeller may be pushed out outboard motor body and clamp bracket of water, resulting in loss of control.
  • Page 37 ENGINE OPERATION ENOW00055-0 WARNING Do not tilt up or down outboard motor when swimmer(s) or passenger is near to prevent them from being caught between outboard motor body and clamp bracket in case the outboard motor body falls. ENOW00056-0 WARNING When tilting up outboard motor with fuel joint for over a few minutes, be sure to dis- connect fuel hose or close fuel cock, or...

  • Page 38: Removing And Carrying The Outboard Motor

    REMOVING AND CARRYING THE OUTBOARD MOTOR ENOM00070-0 ENOW00065-0 1. Removing the outboard motor WARNING  Close air vent screw of fuel tank and fuel 1. Stop the engine. cock before carrying or storing outboard 2. Disconnect the fuel connector, the motor and fuel tank, or fuel may leak, remote control cables and the battery potentially catching fire.

  • Page 39: Trailering

    TRAILERING ENOW00067-0 (like a transom saver bar) in the tilted posi- tion. WARNING 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. ENOW00068-0 WARNING Close air vent screw of fuel tank and fuel...

  • Page 40: Adjustment

    ADJUSTMENT ENOM00227-0 ENOM00074-0 1. Steering friction 2. Throttle grip The steering friction can be adjusted in Friction adjustment of the throttle grip can accordance with your preference by turn- be made with the throttle adjustment ing the steering adjustment screw. screw.

  • Page 41: Inspection And Maintenance

    INSPECTION AND MAINTENANCE ENOM00077-0 ENOM00078-0 Care of your outboard motor EPA Emissions Regulations To keep your outboard motor in the best EPA (United States Environmental Protec- operating condition, it is very important tion Agency) has emission regulations reg- that you perform daily and periodic main- ulating air pollution from new outboard tenance as suggested in the maintenance motors.

  • Page 42: Daily Inspection

    INSPECTION AND MAINTENANCE ENOM00428-0 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 43 INSPECTION AND MAINTENANCE ENOM00080-0 1. Upper lever 450 mL Maintaining engine oil 2. Lower lever 350 mL ENON00024-0 If the engine oil is low, the life of the engine Note will be shortened significantly. The oil level should be checked when the engine is cold.
  • Page 44 INSPECTION AND MAINTENANCE  Do not replenish engine oil over upper colorless and odorless gas which can be limit. If overfilled, remove oil to upper fatal if inhaled for any length of time. limit. If engine oil is over the upper limit, it can leak potentially leading to engine damage.

  • Page 45: Replacing The Propeller

    INSPECTION AND MAINTENANCE ENOW00083-0 CAUTION Keep engine at idle speed during flushing. ENOM00086-0 Replacing the propeller A worn-out or bent propeller will lower the motor’s performance, and cause engine trouble. Before removing the propeller, remove the ENOF00450-0 spark plug caps from the spark plugs to 1.
  • Page 46 INSPECTION AND MAINTENANCE crack, potentially leading to electric finger-tight. Have the spark plug adjusted to the correct torque as soon as possible with shock, explosion and/or fire.  Do not touch spark plugs immediately a torque-wrench. after stopping engine as they will be hot a n d c o u l d c a u s e s e v e r e b u r n s i f ENOM00088-0 touched.

  • Page 47: Periodic Inspection

    INSPECTION AND MAINTENANCE ENOM00431-0 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 48 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. ENOM00432-0 Replacing engine oil Engine oil mixed with dust or water will dramatically shorten the life of the engine.
  • Page 49 INSPECTION AND MAINTENANCE  Stop engine immediately if low oil pres- sure warning lamp is lit or oil leak is 20W−40, 20W−50 found, or engine could be severely dam- aged. Consult dealer. 15W−40, 15W−50 ENON00031-0 10W−40, 10W−50 Notes  If any amount of water is found in engine 10W−30 oil, making it milky white, consult dealer.
  • Page 50 INSPECTION AND MAINTENANCE ENOM00098-0 Replacing gear oil ENOW00094-0 WARNING  Be sure that outboard motor is secured to transom or service stand, or acciden- tal drop or fall of outboard motor could lead to severe personal injury.  Be sure to lock outboard motor if it is ENOF00455-0 tilted up, or accidental fall of outboard 1.

  • Page 51: Off-Season Storage

    INSPECTION AND MAINTENANCE ENOM00435-0 Engine 1. Wash the engine exterior and flush the cooling water system thoroughly with fresh water. Drain the water com- pletely. Wipe off any surface water with an oily rag. 2. Use a dry cloth to completely wipe off water and salt from the electrical com- ENOF00457-0 1.

  • Page 52: Pre-Season Check

    INSPECTION AND MAINTENANCE ENOM00104-0 ENOM00105-0 4. Pre-season check 5. Motor submerged in water 1. Check that the shift and throttle func- After taking your outboard motor out of the tion properly. water, immediately take it to your dealer. (Be sure to turn the propeller shaft The following are the emergency measures when checking the shift function or to be taken for a submerged outboard...

  • Page 53: Cold Weather Precautions

    INSPECTION AND MAINTENANCE ENOM00106-0 6. Cold weather precautions If you moor your boat in cold weather at temperatures below 0°C (32°F), there is the danger of water freezing in the cooling water pump, which may damage the pump, impeller, etc. To avoid this problem, submerge the lower half of the outboard motor into the water.

  • Page 54: Troubleshooting

    TROUBLESHOOTING ENOM00436-0 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 ...
  • Page 55 TROUBLESHOOTING Possible cause    Low oil level   Use of improper oil    Oil deterioration    Clogged oil strainer    Faulty oil pump      Incorrect adjustment of throttle link Insufficient cooling water flow, clogged or defective ...

  • Page 56: Tool Kit And Spare Parts

    TOOL KIT AND SPARE PARTS ENOM00437-0 Items Quantity Remark Tool bag Pliers Socket wrench 10 × 13 mm Service tools Socket wrench 16 mm Socket wrench handle Screwdrivers Cross-and straight-point Screwdriver handle Emergency starter rope 1000 mm Spare parts Spark plug NGK: DCPR6E Split pin Fuel tank...

  • Page 57: Optional Accessories

    OPTIONAL ACCESSORIES ENOM00439-0 Fuel filter kit Fuel tank & Primer Bulb Ass’y (12 ENOF00461-0 ENOF00458-0 Touch-up paint (300 mL) Propeller ENOF00105-0 Genuine engine oil (450 mL) ENOF00459-0 Flushing attachment ENOF00106-0 Remote control box Various kinds of fitting parts are available. ENOF00460-0 Please consult with your dealer.

  • Page 58: Propeller Table

    PROPELLER TABLE ENOM00438-0 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. 4: 4500–5500 rpm 5: 4500–5500 rpm 6: 5000–6000 rpm Propeller Size (Diameter × Standard propeller on the model Propeller pitch)
  • Page 60 OWNER’S MANUAL 003-11059-B 1211NB Printed in Japan...

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