TOHATSU MFS 4B User Manual

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

TOHATSU MFS 4B Specifications

General

Starting System	Manual
Fuel Type	Gasoline
Gear Ratio	2.08:1
Max Output	4 hp
Gear Shift	F-N
Shaft Length	15 inches

Summary

YOUR TOHATSU OUTBOARD MOTOR

OWNER REGISTRATION AND IDENTIFICATION

Details on registering your outboard motor and identifying ownership for warranty purposes.

PRE-DELIVERY CHECK AND LIMITED WARRANTY

Ensuring pre-delivery checks are completed and understanding the limited warranty terms.

GENERAL SAFETY INFORMATION

NOTICE : DANGER/WARNING/CAUTION/Note

Explanation of safety symbols and their importance for safe operation.

EMERGENCY STOP SWITCH

Information on the function and proper use of the emergency stop switch.

SAFE OPERATION OF BOAT

Key safety practices for operating the outboard motor safely.

SERVICING, REPLACEMENT PARTS & LUBRICANTS

Recommendations for servicing, genuine parts, and lubricants.

MAINTENANCE AND MOUNTING GUIDELINES

Operator's responsibility for maintenance and proper mounting procedures.

SPECIFICATIONS

NAMES OF PARTS

INSTALLATION

MOUNTING THE OUTBOARD MOTOR ON BOAT

Instructions and precautions for securely mounting the outboard motor onto a boat.

PRE-OPERATING PREPARATIONS

GASOLINE AND ENGINE OIL REQUIREMENTS

Guidance on selecting the correct types of gasoline and engine oil for the motor.

BREAK-IN PROCEDURE

Steps and schedule for the initial break-in period of the new outboard motor.

ENGINE OIL WARNING LAMP AND ESG SYSTEM

Understanding the engine oil warning lamp and the over-revolution prevention system (ESG).

ENGINE OPERATION

STARTING THE ENGINE

Detailed steps for safely starting the outboard motor, including recoil starter use.

ENGINE WARM-UP AND SPEED MANAGEMENT

Procedure for warming up the engine and understanding engine speed ranges.

FORWARD, REVERSE, AND STOPPING PROCEDURES

Instructions for shifting gears, operating forward/reverse, and stopping the engine safely.

TRIM ANGLE AND SHALLOW WATER OPERATION

Adjusting the trim angle and operating the motor in shallow water conditions.

REMOVING AND CARRYING THE OUTBOARD MOTOR

REMOVING THE OUTBOARD MOTOR

Steps for safely detaching the outboard motor from the boat.

CARRYING THE OUTBOARD MOTOR

Guidelines for transporting the outboard motor safely.

STORING THE OUTBOARD MOTOR

Proper procedures for storing the outboard motor to prevent damage.

TRAILERING

ADJUSTMENT

STEERING FRICTION ADJUSTMENT

How to adjust the steering friction for preference.

THROTTLE GRIP ADJUSTMENT

How to adjust the turning force of the throttle grip.

REVERSE LOCK

Procedure for locking the shift lever in reverse or neutral positions.

INSPECTION AND MAINTENANCE

GENERAL CARE AND REGULATIONS

Overview of emissions compliance, general motor care, and EPA regulations.

DAILY INSPECTION

Routine checks to perform before and after using the outboard motor.

ENGINE OIL MAINTENANCE

Procedures for checking, replenishing, and maintaining engine oil.

WASHING AND FLUSHING PROCEDURES

Instructions for washing the motor exterior and flushing the cooling system.

REPLACING PROPELLER, SPARK PLUGS, AND ANODES

Guidance on replacing worn or damaged propellers, spark plugs, and anodes.

PERIODIC INSPECTION SCHEDULE

Recommended intervals and procedures for periodic servicing of the outboard motor.

ENGINE OIL CHANGE AND FUEL SYSTEM MAINTENANCE

Detailed steps for changing engine oil and cleaning fuel filters/tank.

GEAR OIL REPLACEMENT AND STORAGE PREPARATION

Procedures for replacing gear oil and preparing the motor for off-season storage.

PRE-SEASON CHECK AND SPECIAL CONDITIONS

Steps for pre-season checks, handling submerged motors, and cold weather precautions.

POST-IMPACT INSPECTION

Procedures for inspecting the motor after striking an underwater object.

TROUBLESHOOTING

TOOL KIT AND SPARE PARTS

OPTIONAL ACCESSORIES

PROPELLER TABLE