Tohatsu MFS 25B User Manual

OWNER’S

MANUAL

MFS

25B

30B

OB No.003-11080-3

READ THIS MANUAL BEFORE USING THE OUTBOARD MOTOR. FAILURE TO FOLLOW THE

INSTRUC TIO NS AND SAFETY PRECA UTI ONS IN THIS MANUAL CAN RESULT IN SERIOUS 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 permission of Tohatsu Corporation.

YOUR TOHATSU OUTBOARD MOTOR

OWNER REGISTRATION AND IDENTIFICATION

Upon purchasing this product, be sure that the WARRANTY CARD is correctly and completely ﬁlled out and mailed to the addressee noted there on. This WARRANTY CARD identiﬁes you as the legal owner of the product and serves as your warranty registration.

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.

Serial Number

In the space below, please record the outboard motor's serial number (indicated both on the lower motor cover and on the cylinder block). The serial number will be needed in the event of theft or to quickly identifying the outboard motor type.

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. Should a problem arise with the outboard motor, please follow the troubleshooting procedures listed at the end of this manual. If the problem persists, contact an authorized TOHATSU service shop or dealer.

We hope you will enjoy your outboard motor and wish you good luck in your boating adventures.

TOHATSU CORPORATION

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

5.Trim angle

6.Tilt up, tilt down and shallow water operation

REMOVING AND CARRYING THE OUTBOARD MOTOR

■

1.Removing the outboard motor

2.Carrying the outboard motor

3.Storing the outboard motor

TRAILERING

■

ADJUSTMENT

■

1.Steering friction

2.Throttle grip

3.Remote Control Lever Load

4.Trim Tab Adjustment

INSPECTION AND MAINTENANCE

■

1.Daily inspection

2.Periodic inspection

3.Off-season storage

4.Pre-season check

5.Motor submerged in water

6.Cold weather precautions

7.Checking after striking underwater object

TROUBLESHOOTING

■

TOOL KIT AND SPARE PARTS

■

OPTIONAL ACCESSORIES

■

PROPELLER TABLE

■

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・

8 10 13 16 16 18 19 21 21 23 24 26 26 26 30 31 33 34 37 42 42 42 42 43 44 44 44 44 45 46 47 54 59 60 60 61 61 62 65 66 67

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







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," "WARNING," "CAUTION," and "Note." Always pay special attention to such information to ensure safe operation of the outboard motor at all times.

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.

Note

This instruction provides special information to facilitate the use or maintenance of the outboard motor or to clarify important points.

EMERGENCY STOP SWITCH

The Emergency Stop Switch will stall the outboard motor when the stop switch tether is pulled off. This stop switch tether can be attached to the operator of the outboard motor to minimize or prevent injuries from the propeller in case the operator falls overboard. We highly recommend use of the Emergency Stop Switch tether.

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, or it could result in loss of power in heavy seas, strong currents, or high winds. Loss of control while mooring is another potential hazard. To minimize accidental activation of the Emergency Stop Switch, the 500 mm (20 inch.) stop switch tether is coiled and can extended to a full 1,300 mm (51 inch.).

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. To learn about the correct operation and maintenance of the outboard motor, please read through this manual carefully. It is very difﬁcult for a person standing or ﬂoating in the water to take evasive action should he or she see a power boat heading in his /her direction, even at a slow speed. Therefore, when your boat is in the immediate vicinity of people in the water, the outboard motor should be shifted to neutral and shut off.

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

We re commend th at on ly an authori zed ser vice sho p per f orm se rvice or maintenance on this outboard motor. Be sure to use genuine parts, genuine lubricants, or recommended lubricants.

MAINTENANCE

As the owner of this outboard motor, you should be acquainted with correct maintenance procedures. It is the operator's responsibility to perform all safety checks and to ensure that all lubrication and maintenance instructions are complied with for safe operation. Please comply with all instructions concerning lubrication and maintenance. You should take the engine to an authorized dealer or service shop for periodic inspection at the prescribed intervals. Correct periodic maintenance and proper care of this outboard motor will reduce the chance of problems and limit overall operating expenses.

MOUNTING

Outboard motor mounting must be performed by trained service person(s) using lift or hoist with sufﬁcient capacity.

SPECIFICATIONS

MF , EF , EP

Item

Overall Length mm (in)

Overall Width mm (in)

Overall Height S·L mm (in)

Transom Height S·L

Weight

Output kW (Hp)

Max. Operating Range rpm

Idle Speed rpm

Engine Type

Number of Cylinder

Bore × Stroke mm (in)

Piston Displacement mL (Cu in)

Exhaust System

Cooling System

Engine Lubrication

Startring System

Ignition System

Spark Plug

Trim Position

Engine Oil mL (qt.)

Gear Oil mL (ﬂ.oz.)

Fuel Tank Capacity L (US gal)

Gear Reduction Ratio

: with manual

＊

Speciﬁcations subject to change without notice.

※

MODEL

mm (in)

S Kg (lb)

L Kg (lb)

25B MF 30B MF

1,031 (40.6) 652 (25.7)

391 (15.4) 367 (14.4)

71.5 (158) 74.5 (164) 73 (161)

73 (161) 76 (167) 74.5 (164)

25B : 18.4 (25) 30B : 22.1 (30)

Manual Electric starter motor

Flywheel Magneto C.D. ignition

NMMA FC-W certiﬁed 10W-30 or

API SF, SG, SH, SJ, SL or SM, 10W-30/40

Genuine Gear Oil or API GL5,

SAE #80-90, Approx. 280 (9.5)

25B EF 30B EF

1,187 (46.7) · 1,335 (52.6)

404 (15.9) · 552 (21.7)

25B : 5,000-6,000 30B : 5,250-6,250

850 + or - 30

4-Stroke EFI

61 × 60 (2.40 × 2.36)

526 (32.09)

Through hub exhaust

Water cooling

Trochoid pump

NGK DCPR6E

Approx. 1,800 (1.9)

25 (6.60)

1.92 (12 : 23)

25B EP 30B EP

MFG , EFG

SPECIFICATIONS

Item

Overall Length mm (in)

Overall Width mm (in)

Overall Height S·L mm (in)

Transom Height S·L

Weight

Output

Max. Operating Range rpm

Idle Speed rpm

Engine Type

Number of Cylinder

Bore × Stroke mm (in)

Piston Displacement mL (Cu in)

Exhaust System

Cooling System

Engine Lubrication

Startring System

Ignition System

Spark Plug

Trim Position

Engine Oil mL (qt.)

Gear Oil mL (ﬂ.oz.)

Fuel Tank Capacity L (US gal)

Gear Reduction Ratio

: with manual ※Speciﬁcations subject to change without notice.

＊

MODEL

mm (in)

S Kg (lb)

L Kg (lb)

25B MFG 30B MFG

78 (172) 81 (179)

79.5 (175) 82.5 (182)

25B : 18.4 (25) 30B : 22.1 (30)

Manual Electric starter motor

Flywheel Magneto C.D. ignition

NMMA FC-W certiﬁed 10W-30 or

API SF, SG, SH, SJ, SL or SM, 10W-30/40

Genuine Gear Oil or API GL5,

SAE #80-90, Approx. 280 (9.5)

25B EFG 30B EFG

1,031 (40.6)

391 (15.4)

1,187 (46.7) · 1,335 (52.6)

404 (15.9) · 552 (21.7)

25B : 5,000-6,000 30B : 5,250-6,250

850 + or - 30

4-Stroke EFI

60 (2.40

526 (32.09)

Through hub exhaust

Water cooling

Trochoid pump

NGK DCPR6E

Approx. 1,800 (1.9)

25 (6.60)

1.92 (12 : 23)

2.36)

SPECIFICATIONS

EFT , EPT

Item

Overall Length mm (in)

Overall Width mm (in)

Overall Height S·L mm (in)

Transom Height S·L

Weight

Output

Max. Operating Range rpm

Idle Speed rpm

Engine Type

Number of Cylinder

Bore × Stroke mm (in)

Piston Displacement mL (Cu in)

Exhaust System

Cooling System

Engine Lubrication

Startring System

Ignition System

Spark Plug

Trim Position

Engine Oil mL (qt.)

Gear Oil mL (ﬂ.oz.)

Fuel Tank Capacity L (US gal)

Gear Reduction Ratio

: with manual ※Speciﬁcations subject to change without notice.

＊

MODEL

mm (in)

S Kg (lb)

L Kg (lb)

25B EFT 30B EFT

1,031 (40.6) 652 (25.7)

391 (15.4) 367 (14.4)

82.5 (182) 81 (179)

84 (185) 82.5 (182)

25B : 18.4 (25) 30B : 22.1 (30)

Flywheel Magneto C.D. ignition

NMMA FC-W certiﬁed 10W-30 or

API SF, SG, SH, SJ, SL or SM, 10W-30/40

Genuine Gear Oil or API GL5,

SAE #80-90, Approx. 280 (9.5)

25B EPT 30B EPT

1,187 (46.7) · 1,335 (52.6)

404 (15.9) · 552 (21.7)

25B : 5,000-6,000 30B : 5,250-6,250

850 + or - 30

4-Stroke EFI

60 (2.40×2.36)

526 (32.09)

Through hub exhaust

Water cooling

Trochoid pump

Electric starter motor

NGK DCPR6E

Approx. 1,800 (1.9)

25 (6.60)

1.92 (12 : 23)

○

EP type only

NAMES OF PARTS

MF , EF , EP

MF and EF type only.

＊：

EF type only.

☆：

①

Tilt Handle

②

Top Cowl

③

Bottom Cowl

④

Cooling Water Check Port

⑤

Oil Drain Bolt

⑥

Anti Ventilation Plate

⑦

Trim Tab

⑧

Sub Water Inlet

⑨

Water Inlet

⑩

Propeller

○

Oil Plug (Lower)

○

Oil Plug (Upper)

○

Drive Shaft Housing

○

Thrust Rod

○

Clamp Bracket

○

Clamp Screw

○

Throttle Grip

＊

○

Shift Lever

＊

○

Starter Handle

○

Stop Switch

○

Warning Lamp

○

Starter Switch

☆

○

Fuel Connector

○

Primer Bulb

○

Fuel Connector

○

Fuel Tank Cap

○

Air Vent Screw

○

Fuel Pick up Elbow

○

Fuel Tank

○

Remote Control

○

Main Switch

○

Stop Switch

○

Cord Assembly

NAME OF PARTS

○

MFG , EFG

①

Tilt Handle

②

Top Cowl

③

Bottom Cowl

④

Cooling Water Check Port

⑤

Oil Drain Bolt

⑥

Anti Ventilation Plate

⑦

Trim Tab

⑧

Sub Water Inlet

⑨

Water Inlet

⑩

Propeller

○

Oil Plug (Lower)

○

Oil Plug (Upper)

○

Drive Shaft Housing

○

Thrust Rod

○

Clamp Bracket

○

Lock Lever

○

Tilt Stopper

○

Throttle Grip

○

Shift Lever

○

Starter Handle

○

Stop Switch

○

Warning Lamp

○

Starter Switch (EFG type only)

○

Fuel Connector

○

Shock Absorber

○

Primer Bulb

○

Fuel Connector

○

Fuel Tank Cap

○

Air Vent Screw

○

Fuel Pick up Elbow

○

Fuel Tank

○

EPT type only

NAME OF PARTS

EFT , EPT

EFT type only.

＊：

①

Tilt Handle

②

Top Cowl

③

Bottom Cowl

④

Power Tilt Switch

⑤

Cooling Water Check Port

⑥

Oil Drain Bolt

⑦

Anti Ventilation Plate

⑧

Trim Tab

⑨

Sub Water Inlet

⑩

Water Inlet

○

Propeller

○

Oil Plug (Lower)

○

Oil Plug (Upper)

○

Drive Shaft Housing

○

Thrust Rod

○

Clamp Bracket

○

Tilt Stopper

○

Throttle Grip

＊

○

Shift Lever

＊

○

Starter Handle

○

Stop Switch

○

Warning Lamp

○

Starter Switch

＊

○

Fuel Connector

○

Power Tilt

○

Primer Bulb

○

Fuel Connector

○ ○ ○ ○ ○ ○ ○ ○ ○ ○

Fuel Tank Cap

Air Vent Screw

Fuel Pick up Elbow

Fuel Tank

Power Tilt Switch

Remote Control

Main Switch

Stop Switch

Cord Assembly

Emergency Stop Switch Tether

Bolt (8×85)

Clamp screw

Nut

Washer



Boat Transom

Center of Boat

Bottom of hull

Anti Ventilation Plate

5-25mm (0.2-1”)



INSTALLATION

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. Do not operate the outboard motor until it has been securely mounted on the boat in accordance with the instructions below.

Position ... Above keel line

Set engine at center of boat.

Transom matching

Be sure that the anti ventilation plate of the outb oard mot or is 5-2 5mm (0.2-1 in) below the bottom of hull. If the above condition cannot be met due to the shape of the bottom of your boat, please consult your authorized dealer.

MF, EF, EP type

To attach the outboard motor to the

①

boat, tighten the clamp screws by turning their handles. Also, use the bo l t s to se c u r e the outboard motor brackets on transom board. Secure the outboard motor with a rope to prevent loss overboard.

Note

A rope is not included in the standard accessories.

Before beginning the running test,

●

check that the boat with maximum capacity loading ﬂoats on the water in a proper attitude. Check the position of water surface on the driveshaft housing. If the water surface is near the bottom cowling, in high waves, water may enter the engine cylinders.

Incorrect outboard motor mounting

●

height or existence of underwater object(s), such as hull bottom design, bottom surface conditions or underwater accessories, can cause water spray possibly reaching the engine through an opening of the bottom cowling during cruising. Exposing the engine to such conditions for extended periods can lead to severe engine damage.

MFG, EFG, EFT, EPT type

Nut

Bolt

(12×105)

Washer (large diameter)

Washer

(small diameter)

（327）

（251）

ViewA

125.5

253.5

181818

125.5

163.5 163.5

󲰖

12.5

󲰖

12.5





②

Power Tilt and Gas Assist type

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.

Notes

1. Apply sealing agent, such as silicone sealed between the bolts and the transom board holes before tightening the bolts.

2. Be sure to tighten the mounting bolt nuts to the speciﬁed torque.

(30 Nm (3.0kgf)13ft · lb)

Mounting the outboard motor without

●

following this manual can lead to unsafe conditions such as poor maneuverability, lack of control or ﬁre.

Loose clamp screws and/or mounting

●

bolts can lead to the release or displacement of the outboard motor, possibly resulting in lost of control and/or serious personal injury. Be sure that fasteners are tightened to the speciﬁed torque (30 Nm (3.0kgf)13ft·lb). Check the fasteners for tightness from time to time.

Be sure to use outboard mounting

●

fasteners included in the outboard motor package or their equivalents in terms of size, material, quality and strength. Tighten fasteners to the speciﬁed torque (30 Nm (3.0kgf)13ft·lb). Test cruise to check if fasteners are tightened securely.

Outboard motor mounting must be

●

performed by trained service person(s) using lift or hoist with sufﬁcient capacity.

Cable joint

Approx. 10mm

(0.39 inch)

Remoto control cable

Lock nut

Shift Cable

Throttle Cable

Cable Harness B

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INSTALLATION

Installing the remote control devices

It is recommended that you consult wi t h yo u r au t ho r i ze d d e al e r fo r insta llation and adj ustment of the remote control device.

Installation of the Remote Control

■

Cables (Box side) :

Follow the instruction manual provided with the remote control.

Fitting of Remote Control Cable to

②

Engine

Note

Put the control lever in the Neutral position and the Free Accel lever in the fully closed position.

Installation of the Remote Control

■

on your boat :

Follow the instruction manual provided with the remote control.

Installation of the Remote Control

■

Cable (engine side) and the Cord Assembly (Wiring Harness) :

Fitt i n g of connecting parts to

①

cables

Screw the tip of the remote control

cabl e in to th e ca ble jo i nt up to approx. 10 mm (0.39 inch), then lock them with a lock nut. Apply grease to the hole of the cable joint.

Be careful not to loop the remote control cables to a diameter of 406 mm (16 inches) or less.

INSTALLATION

Cable Harness B (From remote control)

Cable Harness A (Outboard motor side)

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Note

Conﬁrm the outboard motor shifts correctly when the shift lever is placed in Forward and Reverse position. also conﬁrm the throttle valve is closed at idle, in Neutral, Forward, and Reverse. Conﬁrm the throttle valve is fully open when in Forward at the wide open position.

Connecting the Cord assembly

③

(Wiring Harness)

Connect cable harness B to cable harness A. Location of the connectors is near the recoil starter of starboard side in the cowl.

Do not disconnect the cord assembly when the outboard motor is in operation or you will lose control of the outboard motor.

3. Installing the battery

Place the battery box in a convenient

①

position away from possible water spray. Securely fasten both the box and the battery so they do not shake loose.

Note

Minimum recommended battery : 12V, 70AH (465 Marine Cranking Amps (MCA) or 350 Cold Cranking Amps (CCA)) Speciﬁcations and features of batteries vary among the manufacturers. Consult the manufacturer for details.

Battery electrolyte contains sulfuric acid and thus is hazardous, causing a burn if it comes in contact with your skin, or poisonous if swallowed. KEEP BATTERY AND ELECTROLYTE AWAY FROM REACH OF CHILDREN When handling the battery, be sure to:

Read all warnings shown on the

●

battery case

Prevent electrolyte from coming in

●

contact with any part of your body. Contact can cause serious burn or, if it comes in contact with your eye, loss of sight. Use safety glasses and rubber gloves.

In case battery electrolyte comes in contact 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.

●

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Battery cord

(black)

Battery cord

(red)

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INSTALLATION

Battery generates explosive hydrogen gas. Be sure to:

Charge the battery in a well-ventilated

●

place.

Place the battery away from any

●

source of ﬁre, sparks and open ﬂames such as burners or welding equipment.

Do not smoke when handling the

●

battery.

Do not smoke near the battery when

●

the battery is charging.

Make sure that the battery leads do

●

not get stuck between the outboard motor and boat when turning, etc.

The starter motor may fail to

●

operate if the leads are incorrectly connected.

Be sure to correctly connect the (+)

●

and (−) leads. If not, the charging system will be damaged.

Do not disconnect the battery leads

●

from battery while the engine is operating, the electrical parts could be damaged.

Always use a fully charged battery.

●

Connect the positive lead (+) to the

②

positive terminal (+) of the battery, and then connect the negative lea d (−). When disconne c t i ng th e batt ery alw ays remov e the ne g a ti v e le a d (− ) fi r s t . Af t er connecting the positive terminal (+), securely place a cap on it to prevent short circuits.

Do not use a battery that is not recommended. Use of a battery not recommended can lead to poor performance of, and/or damage to, the electrical system.

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PRE-OPERATING PREPARATIONS

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1. Gasoline and engine oil

Required Gasoline types

UNITED STATES AND CANADA:

Us e a ma jor br and o f auto moti ve unleaded gasoline with a minimum po s ted octa n e rating of 87. Midgra d e au t o mo t i ve ga sol i ne th a t contain fuel injector cleaner a re preferred for added internal engine cleanliness. Leaded gasoline is not recommended.

INTERNATIONAL:

Us e a ma jor br and o f auto moti ve unleaded gasoline with a minimum posted octane rating of 91RON. Au t omotiv e gas o line tha t contai n fuel injector cleaner are preferred for added internal engine cleanliness. Leaded gasoline is accep table in areas where unleaded gasoline is not available.

Note

Use of low-quality gasoline results in a short engine life as well as starting difﬁculties and other engine problems. We recommend use for Fuel stabilizer.

Do not ﬁll the fuel tank over capacity. The rise of gasoline temperature may cause gasoline to expand which, if overﬁlled, may leak through an air vent screw when it is open. Leaking gasoline is a dangerous ﬁre hazard.

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 gasoline:

Close the air vent screw of fuel

●

tank cap, or gasoline vapor will be emitted through the air vent screw, creating a ﬁre hazard.

Do not smoke.

●

When or before refueling:

Stop the engine, and do not start the

●

engine during refueling.

Do not smoke.

●

Be careful not to overﬁll fuel tank.

●

Wipe up any spilled gasoline immediately.

When or before cleaning the gasoline tank:

Dismount fuel tank from

●

Place

●

After cleaning gasoline tank

●

the fuel tank away from every source of ignition, such as sparks or open ﬂames.

Do the work outdoors or in

ventilated area.

Wipe up any spilled gasoline

immediately.

Wipe up any spilled gasoline

immediately.

the fuel tank is disassembled for cleaning, reassemble carefully. Imperfect assembly may cause a fuel leak, possibly leading to ﬁre or explosion.

Dispose of aged or contaminated

gasoline in accordance with local regulations.

the boat.

a well

PRE-OPERATING PREPARATIONS

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20W−40, 20W−50

15W−40, 15W−50

10W−40, 10W−50

10W−30

Atmospheric temp.

˚C

˚F

40 96

30 86

20 68

10 50

-10 14

-20

-4

-30

-22

ENGINE

OIL

Engine Oil

Us e onl y hig h qu a li ty 4- s t ro k e engine oil to insure performance and prolonged engine life. Use NMMA FC-W certified 4-stroke engine oil below. 10W-30: is recommended for use in all temperature. 25W-40: may be used at temperatures above 4˚C (40˚F).

You can also use oils that carry the API rating of SF, SG, SH, SJ, SL, or SM. Select the appropriate viscosity, based on atmospheric temperature, from the chart below.

Note

Use of engine oils that do not meet these requirements will result in reduced engine life, and other engine problems.

THE ENGINE OIL IS DRAINED FOR SHIPPING FROM THE FACTORY. BE SURE TO FILL THE ENGINE TO THE PROPER LEVEL BEFORE STARTING ENGINE. (TO PROPERLY FILL THE ENGINE WITH OIL FOLLOW THE INSTRUCTIONS IN SECTION 9 OF THIS MANUAL)

+ 50 hidden pages

Tohatsu MFS 25B User Manual

YOUR TOHATSU OUTBOARD MOTOR

CONTENTS

INDEX

GENERAL SAFETY INFORMATION

SPECIFICATIONS

NAMES OF PARTS

INSTALLATION

PRE-OPERATING PREPARATIONS