TOHATSU MFS 30B Owner's Manual
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TOHATSU MFS 30B Owner's Manual

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OWNER'S
MANUAL
MFS
25B
30B
OB No.003-11080-3

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Summary of Contents for TOHATSU MFS 30B

  • Page 1 OWNER’S MANUAL OB No.003-11080-3...
  • Page 2 INJURY OR DEATH. KEEP THIS MANUAL IN A SAFE LOCATION FOR FUTURE REFERENCE. Copyright © 2009 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 3 IF THIS PROCEDURE IS NOT FOLLOWED, YOUR OUTBOARD MOTOR WILL NOT BE COVERED BY THE APPLICABLE LIMITED WARRANTY. PRE-DELIVERY CHECK Be sure that the product has been checked by an authorized TOHATSU dealer before you take delivery. 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 incorporated by reference into the manual.
  • Page 4 Serial Number : 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 SPECIFICATIONS NAMES OF PARTS INSTALLATION 1. Mounting the outboard motor on boat 2. Installing the remote control devices 3. Installing the battery PRE-OPERATING PREPARATIONS 1.Gasoline and engine oil 2.Break-in 3.Warning system ENGINE OPERATION Before starting 1.Starting 2.Warming up the engine 3.Forward and reverse 4.Stopping...
  • Page 7 INDEX GENERAL SAFETY INFORMATION 1. SPECIFICATIONS 2. NAMES OF PARTS 3. INSTALLATION 4.PRE-OPERATING PREPARATIONS 5.ENGINE OPERATION 6.REMOVING AND CARRYING THE MOTOR 7.TRAILERING 8.ADJUSTMENT 9.INSPECTION AND MAINTENANCE 10.TROUBLESHOOTING 11.TOOL KIT AND SPARE PARTS 12.OPTIONAL ACCESSORIES 13.PROPELLER TABLE...

  • Page 8: General Safety Information

    GENERAL SAFETY INFORMATION NOTICE : DANGER/WARNING/CAUTION/Note Before installing, operating or otherwise handling your outboard motor, be sure to thoroughly read and understand this Owner's Manual and carefully follow all of the instructions. Of particular importance is information preceded by the words "DANGER,"...
  • Page 9 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 MF , EF , EP MODEL 25B MF 25B EF 25B EP Item 30B MF 30B EF 30B EP 1,031 (40.6) 652 (25.7) Overall Length mm (in) 391 (15.4) 367 (14.4) Overall Width mm (in) Overall Height S·L mm (in) 1,187 (46.7) ·...
  • Page 11 SPECIFICATIONS MFG , EFG MODEL 25B MFG 25B EFG Item 30B MFG 30B EFG 1,031 (40.6) Overall Length mm (in) 391 (15.4) Overall Width mm (in) Overall Height S·L mm (in) 1,187 (46.7) · 1,335 (52.6) Transom Height S·L mm (in) 404 (15.9) ·...
  • Page 12 SPECIFICATIONS EFT , EPT MODEL 25B EFT 25B EPT Item 30B EFT 30B EPT 1,031 (40.6) 652 (25.7) Overall Length mm (in) 391 (15.4) 367 (14.4) Overall Width mm (in) Overall Height S·L mm (in) 1,187 (46.7) · 1,335 (52.6) Transom Height S·L mm (in) 404 (15.9) ·...

  • Page 13: Names Of Parts

    NAMES OF PARTS MF , EF , EP EP type only MF and EF type only. EF type only. Tilt Handle Oil Plug (Upper) Fuel Connector Top Cowl Drive Shaft Housing Primer Bulb Bottom Cowl Thrust Rod Fuel Connector Cooling Water Check Port Clamp Bracket Fuel Tank Cap Oil Drain Bolt...
  • Page 14 14 NAME OF PARTS MFG , EFG Tilt Handle Oil Plug (Lower) Stop Switch Top Cowl Oil Plug (Upper) Warning Lamp Bottom Cowl Drive Shaft Housing Starter Switch (EFG type only) Cooling Water Check Port Thrust Rod Fuel Connector Oil Drain Bolt Clamp Bracket Shock Absorber Anti Ventilation Plate...
  • Page 15 NAME OF PARTS EFT , EPT EPT type only EFT type only. Tilt Handle Drive Shaft Housing Fuel Connector Top Cowl Thrust Rod Fuel Tank Cap Bottom Cowl Clamp Bracket Air Vent Screw Power Tilt Switch Tilt Stopper Fuel Pick up Elbow Cooling Water Check Port Throttle Grip Fuel Tank...

  • Page 16: Installation

    INSTALLATION 1. Mounting the outboard motor on boat MF, EF, EP type To attach the outboard motor to the boat, tighten the clamp screws by ������� turning their handles. Also, use the bolts to secure Most boats are rated and certified the outboard motor brackets on in terms of their maximum allowable horsepower, as shown on the boat’...

  • Page 17: Eft/Ept Type

    INSTALLATION MFG, EFG, EFT, EPT type ������� Power Tilt and Gas Assist type 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.

  • Page 18: Installing The Remote Control Devices

    18 INSTALLATION 2. Installing the remote control devices Fitting of Remote Control Cable to It is recommended that you consult Engine w i t h y o u r a u t h o r i z e d d e a l e r f o r installation and adjustment of the Note remote control device.

  • Page 19: Installing The Battery

    INSTALLATION 3. Installing the battery Note Confirm the outboard motor shifts Place the battery box in a convenient correctly when the shift lever is position away from possible water placed in Forward and Reverse spray. Securely fasten both the box position.
  • Page 20 INSTALLATION ������� Connect the positive lead (+) to the positive terminal (+) of the battery, Battery generates explosive hydrogen and then connect the negative gas. Be sure to: Charge the battery in a well-ventilated lead (−). When disconnecting place. the battery always remove the Place the battery away from any n e g a t i v e l e a d ( −...

  • Page 21: Pre-Operating Preparations

    PRE-OPERATING PREPARATIONS 1. Gasoline and engine oil ������ Consult an authorized dealer for details Required Gasoline types on handling gasoline, if necessary. UNITED STATES AND CANADA: Gasoline and its vapors are very flammable and can be explosive. Use a major brand of automotive unleaded gasoline with a minimum When carrying a fuel tank containing posted octane rating of 87.
  • Page 22 22 PRE-OPERATING PREPARATIONS Note Engine Oil U s e o n l y h i g h q u a l i t y 4 - s t r o k e Use of engine oils that do not meet engine oil to insure performance and these requirements will result in prolonged engine life.

  • Page 23: Break-In

    PRE-OPERATING PREPARATIONS 2. Break-In Your new outboard motor and lower ������� unit require break-in for the moving c o m p o n e n t s a c c o r d i n g t o t h e Operating the outboard motor without conditions described in the following break-in can shorten service life of the...

  • Page 24: Warning System

    24 PRE-OPERATING PREPARATIONS 3. Warning system Location of warning horn and lamp If outboard motor encounters an abnor mal condition of fault, the Warning horn warning horn will emit a continuous Located inside the remote control beep or intermittent short beeps for EP models.
  • Page 25 PRE-OPERATING PREPARATIONS Warning indicators, faults and remedy. Warning indicators Engine Engine Description of faults Remedy Low- Over- Sound Lamp (LED) speed speed limiter limiter One beep On for 5 sec. Normal system test when start up Continuous Water over temperature Continuous (*2) ON (*2) ON (*2)

  • Page 26: Engine Operation

    ENGINE OPERATION Before starting Attach the fuel connector to the Before starting engine for the first time engine connector. after reassembling engine or off-season The arrow mark on the primer bulb storage, disconnect stop switch lock should be facing the engine. and pull the starter handle completely out approximately 10 times in order to prime the oil pump.
  • Page 27 ENGINE OPERATION MF, MFG, EF, EFG, EFT type Place the shift lever in the Neutral Set the throttle grip to "START" position. position. Be sure that the shift is in Neutral when starting the engine. This model is provided with start in gear protection.
  • Page 28 28 ENGINE OPERATION MF, MFG type EP, EPT type Engine is equipped with a compression Insert the main switch key. release mechanism. Set the control lever in the Neutral Pull the starter handle slowly until position. you feel engagement, keep pulling Do not raise the free accel lever till you feel less resistance.
  • Page 29 ENGINE OPERATION ������� ������� Do not keep turning starter motor for Be careful that your clothes or other over 5 seconds, or the battery may items do not get caught in the rotating be consumed, potentially making the engine parts. engine starting impossible and/or To prevent accident and injury, do not damaging the starter.

  • Page 30: Warming Up The Engine

    30 ENGINE OPERATION 2. Warming up the engine Engine speeds War m the engine at low engine Idling speed after warming up. speeds for about three minutes. This Remark: In case of cold engine allows the lubricating oil to circulate to starting, idling speed is increased all parts of the engine.

  • Page 31: Forward And Reverse

    ENGINE OPERATION 3. Forward and reverse MF/MFG and EF/EFG/EFT type ������� 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.
  • Page 32 32 ENGINE OPERATION ������� Forward Quickly push the control lever to the Be sure to warm up engine well before Forward (F) position 32˚, where the starting cruise. Operating cold engine gear is connected, while lifting up on may cause damage to your motor. the lock button located at the bottom of the control lever grip.

  • Page 33: Stopping

    ENGINE OPERATION 4. Stopping EP, EPT type MF, MFG, EF, EFG, EFT type START Stop switch Stop Switch Lock Stop switch lock Turn the throttle grip to the slow position. Put the shift lever in the Neutral position. Run the engine for 2-3 minutes at idling speed if it has been running at full speed.

  • Page 34: Trim Angle

    ENGINE OPERATION 5. Trim angle The trim angle of the outboard motor can be adjusted to suit the transom angle of the hull, and load conditions. Choose an appropriate trim angle that will allow the anti-ventilation plate to run parallel to the water surface during operation.
  • Page 35 ENGINE OPERATION EFT, EPT type The provided Power tilt makes tilt- How to use the trim meter (option) up/down electrically. It may be used When the trim angle is set as desired, as a power trim and tilt when the take a reading off the trim meter, and outboard motor is used with the light record it for future reference.
  • Page 36 36 ENGINE OPERATION Improper Trim Angle (bow rises too Proper Trim Angle The trim angle is optimum when the high) If the trim angle is excessive, the boat is parallel to the water surface bow will rise out of the water and the while running.

  • Page 37: Tilt Up, Tilt Down And Shallow Water Operation

    ENGINE OPERATION ������� 6. Tilt up, tilt down and shallow water operation Do not put hand or finger in between MF, EF, EP type outboard motor body and clamp bracket when adjusting trim angle to ������� prevent injury in case the outboard motor body falls.
  • Page 38 38 ENGINE OPERATION Shallow water operation Return to normal running position: ������� Put the reverse lock lever in the tilt down position, slightly lift up the During shallow water operation, be outboard motor, and then put it careful not to place your hand between down.
  • Page 39 ENGINE OPERATION ������� MGF, EFG type (Gas Assist type) Do not tilt up or down outboard motor Tilt up when swimmer(s) or passenger is near M o v e ( U P ) l o c k l e v e r t o " F re e " to prevent them from being caught position.
  • Page 40 40 ENGINE OPERATION Shallow water operation ������� Sub Water During shallow water operation, be Inlet careful not to place your hand between the swivel bracket and the stern bracket. Be sure to tilt the outboard motor down slowly. ������� Shallow water running position Move (UP) lock lever to "Free"...
  • Page 41 ENGINE OPERATION ������� If the battery is dead, and the Do not tilt up or down outboard motor p o w e r t r i m & t i l t s w i t c h t h u s when swimmer(s) or passenger is near to inoperative, turn the manual valve prevent them from being caught between...

  • Page 42: Removing And Carrying The Outboard Motor

    REMOVING AND CARRYING THE OUTBOARD MOTOR 1. Removing the outboard motor 3. Storing the outboard motor Stop the engine. Outboard motor should be stored in a Disconnect the fuel connector, vertical position. the remote control cables and the battery cords from the outboard Note motor.

  • Page 43: Trailering

    TRAILERING MGF, EFG type (Gas Assist type) ������� Lock lever 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. Clamp bracket LOCK Tilting �������...

  • Page 44: Adjustment

    ADJUSTMENT 1. Steering friction 2. Throttle grip Adjust this lever to achieve the Friction adjustment of the throttle desired steering friction (drag) on grip can be made with the throttle the tiller handle. Move lever towards adjustment screw. (a) to tighten friction and move lever towards (b) to loosen friction.

  • Page 45: Trim Tab Adjustment

    ADJUSTMENT ������� 4. Trim Tab Adjustment Inappropriate adjustment of trim tab If straight-line cruising can not be could cause steering difficulty. After achieved, adjust the trim tab located installing or readjusting trim tab, under the anti-ventilation plate. check if steering load is even. Tighten trim tab bolt to specified If the boat veers toward the right, torque.

  • Page 46: Inspection And Maintenance

    INSPECTION AND MAINTENANCE Care of your outboard motor EPA Emissions Regulations To keep your outboard motor in the EPA (United States Environmental best operating condition, it is very Protection Agency) has emission important that you perform daily and regulations regulating air pollution periodic maintenance as suggested from new outboard motors.

  • Page 47: Daily Inspection

    INSPECTION AND MAINTENANCE 1. Daily Inspection Perform the following checks before ������� ������� and after use. 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 Remedy...
  • Page 48 INSPECTION AND MAINTENANCE Notes Maintaining engine oil If the engine oil is low, the life of the Consult with an authorized dealer engine will be shortened significantly. if the engine oil is milky color, or appears contaminated. Checking oil level Stop the engine and set it in a vertical position.
  • Page 49 INSPECTION AND MAINTENANCE Washing outboard motor If outboard motor is used in salt Use a drive cleaner water, brackish water or water with a Remove propeller and thrust holder high acidic level, use fresh water to (refer to Propeller Replacement). remove salt, chemicals or mud from Seal the sub water inlet with tape.
  • Page 50 50 INSPECTION AND MAINTENANCE Replacing the propeller A worn-out or bent propeller will lower Use flushing attachment. Remove propeller and thrust holder the motor's performance, and cause (refer to Propeller Replacement). engine trouble. Seal the water inlet and sub water Before removing the propeller, remove inlet with tape.
  • Page 51 INSPECTION AND MAINTENANCE ������� Notes Do not hold propeller with hand(s) When inspecting the plug, always clean the gasket surface and use a when loosening or tightening propeller nut. Put a piece of wood block between new gasket. Wipe off any dirt from the propeller blade and anti-ventilation threads and screw in the spark plug plate to hold propeller.
  • Page 52 INSPECTION AND MAINTENANCE Replacing the anode Checking and Refilling Oil in the A sacrificial anode protects the Power Trim & Tilt. o u t b o a r d m o t o r f r o m g a l v a n i c Check the oil level of the reservoir corrosion.
  • Page 53 INSPECTION AND MAINTENANCE ������� Do not unscrew the oil plug with the outboard motor tilted down. Pressurized oil in the oil tank may spurt out. Recommended oil Use an automatic transmission fluid or equivalent. Recommended oils are as shown below. ATF Dexron III Air purging from the Power Trim and Tilt unit.

  • Page 54: Periodic Inspection

    54 INSPECTION AND MAINTENANCE 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 55 INSPECTION AND MAINTENANCE Notes Yo u c a n a l s o u s e N M M A F C - W Your outboard motor should receive certified 4-stroke outboard oil below. careful, and complete inspection at 10W-30: is recommended for use in 300 hours.
  • Page 56 56 INSPECTION AND MAINTENANCE ������� Replacing oil filter Drain oil from the engine. You may be injured due to high engine Place a rag or towel below the oil temperatures if you fill engine oil just filter to absorb any spilled oil. after stopping.
  • Page 57 INSPECTION AND MAINTENANCE Cleaning the fuel filters and the If present, disconnect hoses from fuel tank Fuel filters are provided inside the fuel the fuel connector (male) and the tank and engine. fuel pump. Remove the cup, filter and O-rings �������...
  • Page 58 58 INSPECTION AND MAINTENANCE Replacing gear oil until oil flows out of the upper plug ������� hole. 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.

  • Page 59: Off-Season Storage

    INSPECTION AND MAINTENANCE 3. Off-season storage Change the gear oil in the gear Before you put your outboard motor case. in storage, it is a good opportunity to Apply grease to the propeller shaft. have it serviced and prepared by your Apply grease to all sliding parts, dealer.

  • Page 60: Pre-Season Check

    60 INSPECTION AND MAINTENANCE 4. Pre-season check 5. Motor submerged in water Check that the shift and throttle After taking your outboard motor out function properly. of the water, immediately take it to (Be sure to turn the propeller shaft your dealer.

  • Page 61: Cold Weather Precautions

    INSPECTION AND MAINTENANCE 6. Cold weather precautions 7. Checking after striking underwater object If you moor your boat in cold weather S t r i k i n g t h e s e a b o t t o m o r a n at temperatures below 0˚C (32˚F), underwater object may severely there is the danger of water freezing...

  • Page 62: Troubleshooting

    TROUBLESHOOTING 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 hose Closed air vent on fuel tank...
  • Page 63 INSPECTION AND MAINTENANCE Possible cause Short circuit of engine stop switch Rectifier failure Lack of stop switch lock plate Disconnection of wire or loose ground connection Blown 20 Amp fuse in the starting circuit Not shifted into neutral position Weak battery or battery connections are loose or corroded Ignition key switch failure Wiring or electrical connection faulty Starter motor or starter solenoid failure...
  • Page 64 64 TROUBLESHOOTING Possible cause Low compression Carbon deposits in the combustion chamber Incorrect valve clearance Low oil pressure/level, oil pump failure, Clogged oil filter (Pressure switch ON) Insufficient throttle aperture Insufficient cooling water flow, clogged or defective pump Faulty thermostat Cavitations or ventilation Incorrect propeller selection Damaged or bent propeller...

  • Page 65: Tool Kit And Spare Parts

    TOOL KIT AND SPARE PARTS The following a list of the tools and spare parts provided with the motor. Items Quantity Remark Tool bag Pliers Socket wrench 13 mm Socket wrench 16 mm Service tools Socket wrench handle Screwdrivers Cross-and straight-point Screwdriver handle Starter rope 1,000 mm...

  • Page 66: Optional Accessories

    OPTIONAL ACCESSORIES Flushing attachment Genuine engine oil (450ml) Drive cleaner Trim Meter Genuine grease (250g) Trim Meter Kit Genuine gear oil (500ml) Touch-up paint (300ml)

  • Page 67: Propeller Table

    PROPELLER TABLE 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. 25: 5,000 to 6,000 rpm 30: 5,250 to 6,250 rpm Propeller Size (Diameter x pitch) Propeller Mark inch Light boats...
  • Page 68 M E M O...
  • Page 69 M E M O...
  • Page 70 M E M O...
  • Page 72 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 E-mail : www.tohatsu.co.jp 003-11080-3 0912NB Printed in Japan...

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