TOHATSU BFT 75A Owner's Manual
  1. Manuals
  2. Brands
  3. TOHATSU Manuals
  4. Outboard Motor
  5. BFT 90A
  6. Owner's manual

TOHATSU BFT 75A Owner's Manual

Hide thumbs Also See for BFT 75A:
Table of Contents

Advertisement

Quick Links

Download this manual
OWNER'S MANUAL
BFT 75A
90A

Advertisement

Table of Contents
loading

Related Manuals for TOHATSU BFT 75A

Summary of Contents for TOHATSU BFT 75A

  • Page 1 OWNER’S MANUAL BFT 75A...
  • Page 2 The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. Keep this Owner’s Manual handy, so you can refer to it at any time. This Owner’s Manual is considered a permanent part of the outboard motor and should remain with the outboard motor if resold.
  • Page 3 INTRODUCTION Congratulations on your selection of We suggest you read the warranty a TOHATSU outboard motor. We are  policy to fully understand its certain you will be pleased with your coverage and your responsibilities of purchase of one of the finest ...
  • Page 4 INTRODUCTION A FEW WORDS ABOUT You will find important safety information in a variety of forms, including: SAFETY • Safety Labels — on the outboard motor. Your safety and the safety of others and one of  are very important. And using this •...

  • Page 5: Table Of Contents

    CONTENTS OUTBOARD MOTOR SAFETY ........7 TRL (Trolling) Control Switch IMPORTANT SAFETY INFORMATION....7 (optional equipment)...........29 SAFETY LABEL LOCATION........9 Power Trim/Tilt Switch ........30 Power Tilt Switch ..........31 CONTROLS AND FEATURES ........11 Manual Relief Valve..........31 CONTROL AND FEATURE IDENTIFICATION Tilt Lock Lever.............32 CODES..............
  • Page 6 CONTENTS INDICATORS............34 OPERATION..............45 Alternator (ACG) Indicator........34 SAFE OPERATING PRECAUTIONS .....45 BREAK-IN PROCEDURE........45 Malfunction Indicator........... 34 PORTABLE FUEL TANK (optional equipment) ..46 Oil Pressure Indicator........... 35 FUEL HOSE CONNECTIONS.........46 Overheat Indicator..........35 FUEL PRIMING............48 Cooling System Indicator........36 INFREQUENT OR OCCASIONAL USE ....48 OTHER FEATURES ..........
  • Page 7 CONTENTS SERVICING YOUR OUTBOARD MOTOR....71 CLEANING AND FLUSHING........101 Cleaning and Flushing .........101 THE IMPORTANCE OF MAINTENANCE.... 71 MAINTENANCE SAFETY........72 TOOL KIT and OWNER’S MANUAL ....73 STORAGE ..............103 EMERGENCY STARTER ROPE ......73 Fuel ..............103 MAINTENANCE SCHEDULE........ 74 Engine Oil............105 TRIM TAB ADJUSTMENT........
  • Page 8 CONTENTS OIL PRESSURE INDICATOR TURNS OFF AND ENGINE SPEED IS LIMITED......115 OVERHEAT INDICATOR COMES ON AND ENGINE SPEED IS LIMITED......116 WATER SEPARATOR BUZZER SOUNDS..117 SUBMERGED OUTBOARD MOTOR....118 TECHNICAL INFORMATION ........120 Serial Number Locations........120 Battery ..............121 Emission Control System Information....

  • Page 9: Outboard Motor Safety

    • Attach the emergency stop switch INFORMATION lanyard securely to the operator. • It is the operator’s responsibility to The TOHATSU BFT75A and provide the necessary safeguards to • Always wear a PFD (Personal BFT90A outboard motors are protect people and property. Know...

  • Page 10: Carbon Monoxide Hazard

    OUTBOARD MOTOR SAFETY Refuel With Care Carbon Monoxide Hazard • Gasoline is extremely flammable, Exhaust contains poisonous carbon and gasoline vapor can explode. monoxide, a colorless, odorless gas. Refuel outdoors, in a well- Breathing carbon monoxide can ventilated area, with the engine cause loss of consciousness and may stopped.

  • Page 11: Safety Label Location

    The labels shown here contain important safety information. Please read them carefully. These labels are considered permanent parts of your outboard motor. If a label comes off or becomes hard to read, contact an authorized TOHATSU dealer for a replacement.
  • Page 12 OUTBOARD MOTOR SAFETY PORTABLE FUEL TANK  (optional equipment) FUEL CAUTION...

  • Page 13: Controls And Features

    CONTROLS AND FEATURES CONTROL AND FEATURE IDENTIFICATION CODES Model BFT75A BFT90A Type LRTA LRTA XRTA   Transom Height 21.1 in (537 mm) (Shaft Length)  26.1 in (664 mm) Tiller Handle Remote Control    Power Trim/Tilt Tachometer Trim Meter TRL (Trolling) Control Switch * Optional equipment...

  • Page 14: Component And Control Locations

    CONTROLS AND FEATURES COMPONENT AND CONTROL LOCATIONS ENGINE COVER OIL LEVEL DIPSTICK OIL FILLER CAP ENGINE COVER LATCH (rear) NMEA INTERFACE ENGINE COVER SPARK PLUG COUPLER LATCH (front) (under ignition coil) POWER TILT SWITCH IDLE PORT TILT LOCK LEVER STERN COOLING SYSTEM BRACKET INDICATOR...
  • Page 15 CONTROLS AND FEATURES Remote Controls (optional equipment) (SIDE-MOUNT REMOTE CONTROL) GEARSHIFT/THROTTLE CONTROL LEVER NEUTRAL RELEASE LEVER INDICATORS  (Oil pressure, Overheat, POWER TRIM/TILT Alternator, Malfunction) SWITCH FAST IDLE LEVER SPARE EMERGENCY STOP SWITCH CLIP BUZZER (inside) IGNITION SWITCH IGNITION SWITCH EMERGENCY STOP SWITCH CONTROL LEVER...
  • Page 16 CONTROLS AND FEATURES (PANEL-MOUNT REMOTE CONTROL) GEARSHIFT/THROTTLE CONTROL LEVER NEUTRAL RELEASE LEVER POWER TRIM/TILT SWITCH FAST IDLE BUTTON CONTROL PANEL (for PANEL-MOUNT type) INDICATORS  (Oil pressure, Overheat, Alternator, Malfunction) BUZZER IGNITION SWITCH EMERGENCY EMERGENCY STOP STOP SWITCH SWITCH CLIP EMERGENCY STOP SWITCH LANYARD...
  • Page 17 CONTROLS AND FEATURES (SINGLE TOP-MOUNT REMOTE CONTROL) (DUAL TOP-MOUNT REMOTE CONTROL) GEARSHIFT/THROTTLE GEARSHIFT/THROTTLE CONTROL LEVER CONTROL LEVERS POWER TRIM/TILT SWITCH (RIGHT) POWER TRIM/TILT POWER TRIM/TILT SWITCH SWITCH (LEFT) FAST IDLE FAST IDLE BUTTON BUTTON CONTROL PANEL  (for TOP-MOUNT DUAL type) (for TOP-MOUNT SINGLE type) INDICATORS ...
  • Page 18 CONTROLS AND FEATURES Portable Fuel Tank (optional equipment) Fuel Tank Hose Assembly (standard equipment) FUEL GAUGE FUEL HOSE CONNECTOR FUEL TANK FUEL FILLER CAP VENT KNOB FUEL TANK HOSE ASSEMBLY FUEL HOSE JOINT (outboard motor side) FUEL PRIMING BULB...
  • Page 19 CONTROLS AND FEATURES Trim Meter Tachometer TRL (Trolling) Control Switch (optional equipment) (optional equipment) Panel (optional equipment) TRL (Trolling) CONTROL SWITCH...

  • Page 20: Controls

    CONTROLS AND FEATURES CONTROLS Turning the ignition switch key to the Emergency Stop Switch Clip and START position operates the starter Emergency Stop Switch Side-Mount Type motor. The key automatically returns EMERGENCY STOP SWITCH to the ON position when released Ignition Switch from the START position.

  • Page 21: Gearshift/Throttle Control Lever

    CONTROLS AND FEATURES The emergency stop switch clip must A spare switch clip is stored in a slot Gearshift/Throttle Control Lever be inserted in the emergency stop in the control housing. GEARSHIFT/THROTTLE switch in order for the engine to start CONTROL LEVER and run.

  • Page 22: Fast Idle Lever

    CONTROLS AND FEATURES Fast Idle Lever N (NEUTRAL) 30° 30° FAST IDLE LEVER F (FORWARD) R (REVERSE) SHIFT SHIFT MINIMUM MINIMUM THROTTLE OPENING THROTTLE OPENING MAXIMUM MAXIMUM GEARSHIFT/THROTTLE CONTROL LEVER Use the fast idle lever to accelerate engine warm-up after starting the Moving the control lever 30°...

  • Page 23: Panel-Mount Type

    CONTROLS AND FEATURES Panel-Mount Type Turning the ignition switch key to the N (neutral) START position operates the starter Ignition Switch motor. The key automatically returns MAXIMUM FAST IDLE to the ON position when released START from the START position. LOWEST The ignition switch can be used to POSITION...

  • Page 24: Emergency Stop Switch Clip And Emergency Stop Switch

    CONTROLS AND FEATURES Emergency Stop Switch Clip and The emergency stop switch clip must be inserted in the emergency stop Emergency Stop Switch switch in order for the engine to start EMERGENCY STOP SWITCH and run. The emergency stop switch lanyard must be attached securely to the operator or to the operator’s PFD (Personal Flotation Device).

  • Page 25: Gearshift/Throttle Control Lever

    CONTROLS AND FEATURES Gearshift/Throttle Control Lever N (NEUTRAL) GEARSHIFT/THROTTLE 35° 35° F (FORWARD) R (REVERSE) CONTROL LEVER SHIFT SHIFT MINIMUM MINIMUM THROTTLE OPENING MAXIMUM THROTTLE OPENING NEUTRAL RELEASE LEVER MAXIMUM GEARSHIFT/THROTTLE CONTROL LEVER The gearshift/throttle control lever Moving the control lever 35° from N A friction adjuster near the base of controls engine speed and selects F (neutral) selects the gear, and further...

  • Page 26: Fast Idle Button

    CONTROLS AND FEATURES Fast Idle Button It is necessary to position the control N (neutral) lever in the N (neutral) position to F (forward) R (reverse) push in the fast idle button. Return the control lever to N (neutral) position to cancel the fast idle operation.

  • Page 27: Top-Mount Type

    CONTROLS AND FEATURES Top-Mount Type Turning the ignition switch key to the Emergency Stop Switch Clip and START position operates the starter Emergency Stop Switch Ignition Switch motor. The key automatically returns EMERGENCY STOP SWITCH to the ON position when released START from the START position.

  • Page 28: Gearshift/Throttle Control Lever

    CONTROLS AND FEATURES The emergency stop switch clip must Gearshift/Throttle Control Lever The gearshift/throttle control lever(s) be inserted in the emergency stop controls engine speed and selects F SINGLE TYPE switch in order for the engine to start (forward), N (neutral), or R (reverse) and run.
  • Page 29 CONTROLS AND FEATURES Moving the control lever 35° from N N (NEUTRAL) (neutral) selects the gear, and further movement increases engine speed. 35° 35° R (REVERSE) F (FORWARD) A friction adjuster inside the control SHIFT SHIFT box adjusts the operating resistance of the control lever(s).

  • Page 30: Fast Idle Button

    CONTROLS AND FEATURES Fast Idle Button It is necessary to position the control N (neutral) lever in the N (neutral) position to F (forward) push in the fast idle button. R (reverse) Return the control lever to N (neutral) position to cancel the fast idle operation.

  • Page 31: Trl (Trolling) Control Switch (Optional Equipment)

    CONTROLS AND FEATURES TRL (Trolling) Control Switch  (optional equipment) SWITCH PANEL TRL (Trolling) CONTROL SWITCH The Trolling Control Switch is a rocker switch with UP and DN (down) positions to adjust the trolling speed up or down in 50 rpm increments within the range of 650 to 1,000 rpm.

  • Page 32: Power Trim/Tilt Switch

    CONTROLS AND FEATURES Power Trim/Tilt Switch The power trim/tilt switch is located on the control lever. It is a rocker switch with UP and DN (down) (side-mount type) (top-mount single type) positions for changing the angle of the outboard motor. POWER TRIM/TILT SWITCH You can use the power trim/tilt switch anytime whether the boat is...

  • Page 33: Power Tilt Switch

    CONTROLS AND FEATURES Power Tilt Switch Manual Relief Valve (engine pan side) POWER MANUAL (To fix) (To release) MANUAL RELIEF VALVE POWER TILT SWITCH The outboard motor can be tilted The power tilt switch is located on the manually after opening the manual engine pan.

  • Page 34: Tilt Lock Lever

    CONTROLS AND FEATURES Tilt Lock Lever Engine Cover Latch Trim Tab (front/rear) GEAR CASE GROMMET ENGINE COVER LATCHES  FREE (front/rear) UNLATCH LOCK TRIM TAB BOLT TRIM TAB STERN BRACKET The engine cover latch fastens the TILT LOCK LEVER The trim tab compensates for “torque engine cover to the outboard motor.

  • Page 35: Instruments

    CONTROLS AND FEATURES INSTRUMENTS Tachometer Fuel Gauge (optional equipment) (optional equipment) Trim Meter FUEL GAUGE (optional equipment) The tachometer shows engine speed in revolutions per minute. The trim meter indicates the relative trim angle of the outboard motor. Refer to the tachometer when using the throttle and power trim/tilt Refer to the trim meter when using controls to achieve the best...

  • Page 36: Indicators

    If an indicator does not light during this (RED) test, it cannot alert you if that system (RED) develops a problem. Have your TOHATSU dealer check for burned- BUZZER BUZZER out bulbs or other problems. Under normal conditions, the (panel-mount/top-mount types)

  • Page 37: Oil Pressure Indicator

    CONTROLS AND FEATURES Oil Pressure Indicator When the oil pressure indicator is lit, Overheat Indicator oil pressure is OK. (side-mount type) (side-mount type) OVERHEAT OIL PRESSURE If oil pressure becomes low, the INDICATOR INDICATOR indicator will turn off, and the engine protection system will limit engine speed.

  • Page 38: Cooling System Indicator

    CONTROLS AND FEATURES When the alert triggers, the overheat Cooling System Indicator indicator comes on and the buzzer COOLING SYSTEM INDICATOR sounds a steady tone as the engine speed is reduced to 1,800 rpm. If the condition persists for another 20 seconds, the engine shuts off.

  • Page 39: Other Features

    CONTROLS AND FEATURES OTHER FEATURES Overrev Limiter Portable Fuel Tank (optional equipment) The engine is equipped with an Water Separator Buzzer PORTABLE FUEL TANK overrev limiter to prevent the The water separator buzzer sounds a possibility of mechanical damage rapid, repeating signal when water from excessive engine speed.

  • Page 40: Fuel Filler Cap Vent Knob

    CONTROLS AND FEATURES Fuel Filler Cap Vent Knob Fuel Priming Bulb VENT KNOB OPEN OUTLET END (outboard motor side) CLOSE PRIMING BULB FUEL FILLER CAP INLET END (fuel tank side) The fuel filler cap is provided with a A priming bulb is built into the fuel vent knob to seal the portable fuel hose that connects the fuel tank to the tank for carrying it to and from the...

  • Page 41: Anodes

    CONTROLS AND FEATURES Anodes ANODE  ANODE (stern bracket) (each side) The anodes are made of a sacrificial material that helps to protect the outboard motor from corrosion. There are two anodes on the gear case, one on the stern bracket and two small anodes in the water passages of the engine block.

  • Page 42: Nmea Interface Coupler

    CONTROLS AND FEATURES NMEA Interface Coupler Operating Hour Notification System NMEA INTERFACE COUPLER This outboard motor engine counts the number of operating hours since the last periodic maintenance. When the next periodic maintenance is due, the engine notifies the NMEA2000 network, and a maintenance indication is displayed on an NMEA2000-compatible device.
  • Page 43 CONTROLS AND FEATURES Periodic maintenance is required <Operating hour notification timing> when either the operating hours or the time since last maintenance reaches the prescribed limit. Therefore, periodic maintenance may be Every 100 hours required based on the number of months since the last maintenance before the alert based on engine 80 hours...
  • Page 44 CONTROLS AND FEATURES <Display> hour count until the next maintenance will be in error. Steps When the periodic maintenance is Outboard Ignition switch conducted before “Periodic — Start engine Gear at F or R motor Maintenance” is indicated, reset the hour counter.

  • Page 45: Before Operation

    Be sure to take care of any problem Familiarize yourself with all laws and you find, or have your authorized regulations relating to boating and the TOHATSU dealer correct it, before use of outboard motors. you operate the outboard motor.

  • Page 46: Safety Inspection

    BEFORE OPERATION Safety Inspection • Check that all fasteners are in place • Make sure a tool kit and the and securely tightened. emergency starter rope are onboard • Before each use, look around and (p.73). Replace any missing items. •...

  • Page 47: Operation

    OPERATION SAFE OPERATING BREAK-IN PROCEDURE Next 60 minutes: PRECAUTIONS Run the engine up to a maximum of Break-in period: 10 hours 4,000 to 5,000 rpm, which is about To safely realize the full potential of 50% to 80% of maximum throttle this outboard motor, you need a Proper break-in operation allows the opening.

  • Page 48: Portable Fuel Tank (Optional Equipment)

    OPERATION PORTABLE FUEL TANK Secure the portable fuel tank in the FUEL HOSE CONNECTIONS (optional equipment) boat so that it won't move around and Turn the portable fuel tank vent knob become damaged. PORTABLE FUEL TANK counterclockwise to the open position.
  • Page 49 OPERATION (Using the fuel tank mounted on FUEL HOSE BARB FUEL HOSE CONNECTOR the boat) (outboard motor side) FUEL HOSE ASSEMBLY (optional equipment) (outboard motor side) FUEL HOSE (fuel tank side) HOSE CLAMP BARB (stainless steel) HOSE CLAMP PRIMING (stainless steel) ARROW BULB (fuel tank side)

  • Page 50: Fuel Priming

    OPERATION FUEL PRIMING Do not touch the priming bulb with INFREQUENT OR OCCASIONAL USE the engine running or when tilting up If you are using a portable fuel tank, the outboard motor. The vapor If your outboard motor will be used turn the portable fuel tank vent knob separator could overflow.

  • Page 51: Starting The Engine

    OPERATION STARTING THE ENGINE 1. Put the emergency stop switch clip in the emergency stop switch, and N (neutral) Control Page securely to the operator or to the Side-Mount Type ......49 operator’s PFD (Personal Flotation Device). Panel-Mount Type ......52 Top-Mount Type ......54 The engine will not start or run unless the emergency stop switch Side-Mount Type...
  • Page 52 OPERATION If the engine fails to start within 5 seconds, release the key and wait at START least 10 seconds before operating FAST IDLE the starter again. RANGE LOWEST POSITION • Using the electric starter for more than 5 seconds at a time will overheat the starter motor and can damage it.
  • Page 53 OPERATION During the warm-up period, check the oil pressure indicator (p.35), MAXIMUM FAST IDLE • If the engine is not properly overheat indicator (p.35), and warmed up before raising the FAST IDLE cooling system indicator (p.36). engine speed, the buzzer and RANGE overheat indicator may activate If the indicators show any...

  • Page 54: Panel-Mount Type

    OPERATION Panel-Mount Type The engine will not start or run N (neutral) unless the emergency stop switch EMERGENCY STOP SWITCH clip is in the emergency stop switch. The emergency stop switch clip and emergency stop switch lanyard system is a safety device that will stop the engine if you fall away from the controls while operating CONTROL...
  • Page 55 OPERATION If the engine fails to start within 5 START seconds, release the key and wait at N (neutral) least 10 seconds before operating the starter again. • Using the electric starter for more than 5 seconds at a time will overheat the starter motor and can damage it.

  • Page 56: Top-Mount Type

    OPERATION During the warm-up period, check Top-Mount Type the oil pressure indicator (p.35), • If the engine is not properly EMERGENCY STOP SWITCH overheat indicator (p.35), and warmed up before raising the cooling system indicator (p.36). engine speed, the buzzer and overheat indicator may activate If the indicators show any and the engine speed will be...
  • Page 57 OPERATION The engine will not start or run unless START N (neutral) the emergency stop switch clip is in the emergency stop switch. The emergency stop switch clip and emergency stop switch lanyard system is a safety device that will stop the engine if you fall away from CONTROL the controls while operating the boat.
  • Page 58 OPERATION If the engine fails to start within 5 N (neutral) seconds, release the key and wait at • If the engine is not properly least 10 seconds before operating warmed up before raising the the starter again. engine speed, the buzzer and overheat indicator may activate and the engine speed will be CONTROL...

  • Page 59: Emergency Starting

    OPERATION During the warm-up period, check EMERGENCY STARTING 6 × 25 mm the oil pressure indicator (p.35), FLANGE BOLT If the battery is discharged or the ALTERNATOR overheat indicator (p.35), and COVER cooling system indicator (p.36). starter motor is inoperative, you can 6 mm WASHER start the engine manually using the If the indicators show any...
  • Page 60 OPERATION 5. Secure the breather tube to the 8. Pull the emergency starter rope EMERGENCY clamp of the silencer case. slowly until resistance is felt, then STARTER pull briskly. Direction ROPE Take care not to lose the bolt and to pull Keep away from moving parts washer.
  • Page 61 12. Have your closest authorized TOHATSU dealer check your electrical system and correct the problem so that you can use the electric starter.

  • Page 62: Stopping The Engine

    OPERATION STOPPING THE ENGINE Panel-Mount/Top-Mount Types EMERGENCY CONTROL PANEL Emergency Engine Stopping STOP SWITCH EMERGENCY Side-Mount Type STOP SWITCH LANYARD EMERGENCY STOP SWITCH PULL EMERGENCY STOP SWITCH LANYARD EMERGENCY STOP SWITCH CLIP PULL To stop the engine in an emergency, pull the emergency stop switch clip out of the emergency stop switch by EMERGENCY STOP SWITCH CLIP...

  • Page 63: Normal Engine Stopping

    OPERATION Normal Engine Stopping Top-Mount Type Side-Mount Type N (neutral) N (neutral) CONTROL CONTROL LEVER LEVER 1. Move the control lever to the N Panel-Mount Type (neutral) position. N (neutral) After cruising at full throttle, cool down the engine by idling for a few minutes before stopping the engine.
  • Page 64 OPERATION Side-Mount Type 2. Turn the ignition switch key to the OFF position to stop the engine. In the event that the engine does not stop when the ignition switch key is turned to the OFF position, pull the emergency stop switch  clip out of the emergency stop switch by pulling the emergency stop switch lanyard (p.60).

  • Page 65: Gearshift And Throttle Operation

    OPERATION GEARSHIFT AND Panel-Mount Type To shift gears, move the control lever THROTTLE OPERATION to select the F (forward), N (neutral), N (neutral) or R (reverse) gear. Side-Mount Type F (forward) R (reverse) CONTROL LEVER The control lever cannot be moved from the N (neutral) position unless the neutral release lever is squeezed NEUTRAL...

  • Page 66: Steering

    OPERATION Side-Mount Type Top-Mount Type STEERING Steer the boat in the same manner as an automobile. TO INCREASE FRICTION TO INCREASE FRICTION CONTROL TO DECREASE LEVER FRICTION TO DECREASE FRICTION FRICTION ADJUSTER Panel-Mount Type CONTROL LEVER FRICTION ADJUSTER CONTROL LEVER FRICTION ADJUSTER Adjust the control lever friction adjuster so the control lever will hold...

  • Page 67: Cruising

    OPERATION CRUISING If engine speed becomes unstable at It is necessary to trim the angle of the high speed due to activation of the outboard motor to compensate for Engine Speed overrev limiter, reduce speed and changes in boat load, weight check the trim angle of the outboard distribution, water conditions, or For best fuel economy, limit the...
  • Page 68 OPERATION Side-Mount Type Top-Mount Type OUTBOARD OUTBOARD (single type) MOTOR MOTOR TRIMMED TOO TRIMMED TOO POWER TRIM/TILT HIGH SWITCH CONTROL LEVER OUTBOARD MOTOR TRIMMED CORRECTLY (dual type) POWER CONTROL TRIM/TILT POWER TRIM/TILT SWITCH LEVER SWITCH (LEFT) (RIGHT) Panel-Mount Type BOW TOO LOW DUE TO POWER TRIM/TILT SWITCH 1.
  • Page 69 OPERATION DN: Reduce engine speed  Trolling Speed Control the Trolling Speed Control is (optional equipment) UP: Increase engine speed deactivated. If 3,000 rpm is not reached and the throttle is closed, the SWITCH PANEL Place the outboard motor in-gear with engine speed will decrease to the the throttle control in the fully closed Trolling Speed Control setting.

  • Page 70: Shallow Water Operation

    OPERATION Trim Tab When the trim tab is correctly adjusted, steering effort will be equal If steering effort is not equal in both in both directions. directions, adjust the trim tab to compensate for “torque steer,” which Refer to TRIM TAB ADJUSTMENT is the reaction of the outboard motor on p.76.

  • Page 71: Mooring, Beaching, Launching

    OPERATION MOORING, BEACHING, To lower the outboard motor, tilt up LAUNCHING using the power tilt switch, then move the tilt lock lever to the FREE Before tilting up, leave the outboard position, and then lower the outboard motor in the running position for one motor to the desired position.

  • Page 72: Multiple Outboard Motors

    OPERATION Be sure the valve is closed before MULTIPLE OUTBOARD POWER MANUAL operating the outboard motor. If the MOTORS (To fix) (To release) valve is not closed, the outboard On boats equipped with more than motor will tilt up when operated in one outboard motor, all motors reverse.

  • Page 73: Servicing Your Outboard Motor

    It will also help reduce air To ensure the best quality and basic hand tools. Other service tasks pollution. reliability, use only new, TOHATSU that are more difficult or require Genuine parts or their equivalents for special tools are best handled by repair and replacement.

  • Page 74: Maintenance Safety

    SERVICING YOUR OUTBOARD MOTOR MAINTENANCE SAFETY Safety Precautions • Read the instructions before you begin, and make sure you have the Some of the most important safety • Make sure the engine is off before tools and skills required. precautions follow. However, we you begin any maintenance or repairs.

  • Page 75: Tool Kit And Owner's Manual

    SERVICING YOUR OUTBOARD MOTOR TOOL KIT and OWNER’S MANUAL EMERGENCY STARTER ROPE 8 × 10 mm SPARK PLUG WRENCH WRENCH PHILLIPS 18 × 19 mm BOX SCREWDRIVER WRENCH EMERGENCY STARTER ROPE FUSE PULLER TOOL BAG OWNER’S MANUAL GRIP An emergency starter rope is supplied.

  • Page 76: Maintenance Schedule

    91-94 (1) Lubricate more frequently when used in salt water. (2) These items should be serviced by your servicing dealer, unless you have the proper tools and are mechanically proficient. Refer to the TOHATSU service manual for service procedures. (3) For professional commercial use, log hours of operation to determine proper maintenance intervals.
  • Page 77 Shift cable Check-adjust (2) These items should be serviced by your servicing dealer, unless you have the proper tools and are mechanically proficient. Refer to the TOHATSU service manual for service procedures. (3) For professional commercial use, log hours of operation to determine proper maintenance intervals.

  • Page 78: Trim Tab Adjustment

    SERVICING YOUR OUTBOARD MOTOR TRIM TAB ADJUSTMENT RIGHT The trim tab compensates for “torque steer,” which is a reaction of the LEFT outboard motor to propeller rotation. GEAR CASE GEAR CASE TRIM TAB TRIM TAB GROMMET GROMMET If uncompensated, torque steer would BOLT BOLT make the outboard motor tend to turn...

  • Page 79: Manual Relief Valve

    SERVICING YOUR OUTBOARD MOTOR MANUAL RELIEF VALVE Check that nobody is under the ENGINE COVER REMOVAL AND INSTALLATION outboard motor before opening the POWER MANUAL manual relief valve. If the manual (To fix) (To release) relief valve is loosened (turned counterclockwise) when the outboard ENGINE COVER...

  • Page 80: Engine Oil Level Check

    SERVICING YOUR OUTBOARD MOTOR Engine Oil Level Check 3. Insert the dipstick all the way in, and then remove it and check the Check the engine oil level with the oil level shown on the dipstick. engine stopped and the outboard 4.
  • Page 81 SERVICING YOUR OUTBOARD MOTOR Oil filler cap removal (Unlock): 5. Install the oil filler cap and tighten it securely. Do not overtighten. OIL FILLER CAP Rib of the alternator Oil filler cap installation (Lock): cover 1)Insert the oil filler cap into the oil filler port with the lug being set horizontally.

  • Page 82: Engine Oil Change

    SERVICING YOUR OUTBOARD MOTOR Engine Oil Change DRAIN BOLT Improper disposal of engine oil can An engine oil evacuation device may SEALING WASHER be harmful to the environment. If you be used to remove the engine oil. (Replace) change your own oil, please dispose Drain the used oil while the engine is of the used oil properly.

  • Page 83: Oil Filter Change

    SERVICING YOUR OUTBOARD MOTOR 4. With the outboard motor in a Oil Filter Change 64 mm FILTER WRENCH vertical position, fill to the upper 1. Drain the engine oil, and reinstall limit mark on the oil level dipstick the drain bolt (see Engine Oil (p.78) with the recommended oil.

  • Page 84: Engine Oil Recommendations

    4-stroke detergent oil. If you are changing the oil filter Use 4-stroke high detergent, premium Use only a TOHATSU Genuine oil while the outboard motor is out of quality motor oil certified to meet or filter or a filter of equivalent quality the water, use commercially ...

  • Page 85: Spark Plug Service

    SERVICING YOUR OUTBOARD MOTOR Spark Plug Service 6 × 20 mm  CONNECTOR FLANGE SH BOLT <Standard spark plug> LOCK TAB RECOMMENDED SPARK PLUG: IGNITION ZFR6K-9E (NGK) COIL Incorrect spark plugs can cause engine damage. See page 85 for instructions of handing the iridium spark plugs PLUG MAINTENANCE COVER (optional parts).
  • Page 86 SERVICING YOUR OUTBOARD MOTOR SIDE ELECTRODE BOX WRENCH New plug Plug needing replacement 0.031 – 0.035 in (0.8 – 0.9 mm) SEALING WASHER INSULATOR 6. Inspect the spark plugs. Replace them if the electrodes are worn, or if the insulators are cracked or chipped.
  • Page 87 SERVICING YOUR OUTBOARD MOTOR 8. Install the spark plugs carefully, by 10. Install the ignition coil. Reinstall These spark plugs have an iridium the 6 25 mm flange bolt. hand, to avoid cross-threading. coated center electrode. Be sure to observe the following 9.

  • Page 88: Lubrication Points

    SERVICING YOUR OUTBOARD MOTOR Lubrication Points THROTTLE ARM/ THROTTLE ROD/LINK LINK/PIVOT/PLATE Apply TOHATSU Marine grease to the parts shown below: Lubrication interval: After the first 20 hours or 1 month, TILT BRACKET then every 100 hours or 6 months (refer to the MAINTENANCE SCHEDULE on page 74).
  • Page 89 SERVICING YOUR OUTBOARD MOTOR SHIFT LINK BRACKET/ SHIFT PIVOT/SHIFT ARM/ LINK PIN/PIVOT PLATE/ TILT LOCK LEVER SLIDE PIVOT/ (each side) TILT SHAFT THREAD CLICK SPRING ROLLER UPPER CYLINDER PIN/BUSHING MOUNT FRAME LOWER CYLINDER BUSHING/COLLAR SWIVEL SHAFT...

  • Page 90: Refueling

    SERVICING YOUR OUTBOARD MOTOR REFUELING VENT KNOB FUEL GAUGE Portable Fuel Tank OPEN (optional equipment) FUEL TANK CAPACITY: 6.6 US gal (25 L) Check the fuel gauge and refill the 2. Turn the fuel filler cap counterclockwise so that it touches tank when necessary.
  • Page 91 SERVICING YOUR OUTBOARD MOTOR 3. Press down the pressure relief tab, Using the fuel tank mounted in SAFE FILL LEVEL and then turn the fuel filler cap 1/4 the boat. turn counterclockwise. Release the pressure relief tab. Wait to relieve Check the fuel level and refill if pressure.

  • Page 92: Fuel Recommendations

    SERVICING YOUR OUTBOARD MOTOR FUEL RECOMMENDATIONS You may use unleaded gasoline containing no more than 10% ethanol Gasoline is highly flammable Use unleaded gasoline with a pump (E10) or 5% methanol by volume. In and explosive. octane rating of 86 or higher. addition, methanol must contain cosolvents and corrosion inhibitors.

  • Page 93: Water Separator Inspection And Service

    Check the water separator assembly by yourself, separator periodically. Clean it or consult an authorized TOHATSU dealer. consult with an authorized TOHATSU outboard motor dealer for cleaning.
  • Page 94 SERVICING YOUR OUTBOARD MOTOR HOSE CLIPS HARNESS WATER LEVEL SENSOR WATER CLIP 2 pin CONNECTOR (commercially available) SEPARATOR WATER BRACKET SEPARATOR CLIP C WATER SEPARATOR SUSPENSION STRAP HARNESS FUEL HOSES 4. Remove the suspension strap from 5. Open the harness clip and remove the water separator bracket;...
  • Page 95 SERVICING YOUR OUTBOARD MOTOR • Assemble so the flat part on the WATER LEVEL POSITIONING back of the suspension is parallel to BAFFLE SENSOR 2 pin BAND PLATE the water separator joint as shown CONNECTOR HARNESS below. O-RING CLIP (Replace) BODY Assemble so the flat part of the suspension and the water separator joint...

  • Page 96: Fuel Filter Inspection And Replacement

    SERVICING YOUR OUTBOARD MOTOR 12. Prime the engine using the Fuel Filter Inspection and priming bulb (p.48). Check for Replacement fuel leaks. Gasoline is highly flammable The fuel filter (inside the strainer cup) Repair any fuel leaks if necessary. and explosive. is located between the fuel pump and If the buzzer sounds or excessive the water separator.
  • Page 97 2. Looking through the translucent authorized TOHATSU dealer. strainer cup, check the fuel filter for water accumulation and 5. Disconnect the fuel hoses from the clogging....
  • Page 98 SERVICING YOUR OUTBOARD MOTOR 10. Prime the engine using the FUEL FILTER priming bulb (p.48). Check for (inside strainer cup) fuel leaks. Repair any fuel leaks if FUEL INTAKE necessary. SIDE JOINT 11. Install the engine cover. If loss of power or hard starting are EDGE AT found to be caused by excessive THE BASE...

  • Page 99: Portable Fuel Tank And Tank Filter Cleaning (Optional Equipment)

    SERVICING YOUR OUTBOARD MOTOR Portable Fuel Tank and Tank Fuel Tank Fuel Tank Filter Filter Cleaning CONNECTOR 5 mm SCREW (4) (optional equipment) GASKET Gasoline is highly flammable and explosive. You can be burned or seriously injured when FUEL TANK handling fuel.

  • Page 100: Anode Replacement

    SERVICING YOUR OUTBOARD MOTOR Anode Replacement Propeller Replacement Painting or coating the anodes will Before replacing the propeller, defeat their purpose and will lead to remove the emergency stop switch rust and corrosion damage to the clip from the emergency stop switch outboard motor.
  • Page 101  TIGHTENING TORQUE LIMIT: 1. Apply marine grade grease to the 33 lbf·ft (44.1 N·m, 4.5 kgf·m) • Use a TOHATSU Genuine propeller shaft. stainless steel cotter pin or Do not tighten the castle nut above equivalent cotter pin and bend 2.

  • Page 102: Inspect After Operating

    SERVICING YOUR OUTBOARD MOTOR Inspect After Operating 1. Stop the engine and remove the engine cover (p.77). 2. Confirm the cooling water leakage from the engine.

  • Page 103: Cleaning And Flushing

    CLEANING AND FLUSHING  Cleaning and Flushing Cleaning Flushing With a Garden Hose (commercially available) After each use in salt water or dirty Wash the outside of the outboard water, thoroughly clean and flush the motor with clean, fresh water, and outboard motor with fresh water.
  • Page 104 CLEANING AND FLUSHING FLUSH PORT GARDEN HOSE FLUSH PORT CONNECTOR CONNECTOR FLUSH PORT GARDEN HOSE JOINT CONNECTOR (commercially available) EXHAUST PORT 5. Screw the flush port connector onto the garden hose. 6. Turn on the fresh water supply and flush the outboard motor for at least 10 minutes.

  • Page 105: Storage

    STORAGE Fuel as gasoline blend, your storage temperatures, and whether the fuel tank is partially or completely filled. Depending on the region where you The air in a partially filled fuel tank operate your outboard, fuel promotes fuel deterioration. Very formulations may deteriorate and warm storage temperatures accelerate oxidize rapidly.
  • Page 106 STORAGE Draining the Fuel System 2. Release the drain hose from the 4. Tilt the outboard motor up all the projection of the intake manifold way. Leave the outboard motor You can avoid fuel deterioration and set the end of the hose toward tilted up until the gasoline stops problems by draining the fuel tank the outside of the engine undercase.

  • Page 107: Engine Oil

    STORAGE Engine Oil HOISTING THE OUTBOARD 4. After the outboard motor is placed MOTOR in storage and disconnected from 1. Change the engine oil and the oil the hoist, install the engine cover. filter (p.80-82). HOIST HOOKS STORAGE PRECAUTIONS 2. Remove the spark plugs (p.83), and remove the emergency stop switch Select a well-ventilated storage area.

  • Page 108: Removal From Storage

    STORAGE REMOVAL FROM STORAGE CUSHION (protective material) Check your outboard motor as described in the BEFORE OPERATION chapter of this manual. If the cylinders were coated with oil during storage preparation, the engine may smoke briefly at startup. This is normal.

  • Page 109: Transporting

    TRANSPORTING WITH OUTBOARD MOTOR The preferred method is to leave the WITH OUTBOARD MOTOR INSTALLED ON BOAT REMOVED FROM BOAT engine in the normal running position, but if there is insufficient road When trailering a boat with the Secure the outboard motor in either clearance, you can tilt the outboard outboard motor attached, always the vertical or horizontal position...

  • Page 110: Taking Care Of Unexpected Problems

    TAKING CARE OF UNEXPECTED PROBLEMS ENGINE WILL NOT START Possible Cause Correction Clip not inserted in emergency stop switch. Insert clip in emergency stop switch. Control lever not in neutral position. Shift to neutral. Fast idle lever raised (side-mount type). Leave fast idle lever OFF (p.50).
  • Page 111 TAKING CARE OF UNEXPECTED PROBLEMS ENGINE WILL NOT START Possible Cause Correction Out of fuel. Refuel (p.88). Fuel hose not primed. Squeeze priming bulb (p.48). Fuel filter or fuel tank filter clogged. Replace fuel filters (p.94). Bad fuel; outboard motor stored without draining Drain fuel tank and vapor separator (p.104).
  • Page 112 Use starting procedure (p.49, 52, 54); if engine still will malfunction, stuck valves, starter malfunction, switch not start, then take outboard motor to an authorized malfunction, or electrical problem in the starting circuit, TOHATSU dealer, or refer to the service manual. etc.

  • Page 113: Hard Starting Or Stalls After Starting

    TAKING CARE OF UNEXPECTED PROBLEMS HARD STARTING OR STALLS AFTER STARTING Possible Cause Correction Fast idle lever raised (side-mount type). Leave fast idle lever OFF (p.50). Fuel hose not primed. Squeeze priming bulb (p.48). Fuel filter or fuel tank clogged. Replace fuel filters (p.94).

  • Page 114: Engine Overheats

    Possible Cause Correction Spark plugs faulty, fouled, or improperly gapped. Replace spark plugs (p.83). Fuel system malfunction, fuel pump failure, ignition Take outboard motor to an authorized TOHATSU dealer, malfunction, etc. or refer to the service manual. ENGINE OVERHEATS Possible Cause Correction Water intake screens clogged.

  • Page 115: Fuses

    TAKING CARE OF UNEXPECTED PROBLEMS FUSES Fuse Replacement FUSE CASE LID SPARE FUSES (10 A, 15 A, 30 A) Electric Starter Will Not Operate Disconnect the battery cable at the battery negative (-) terminal before The 10 A, 15 A, and 30 A main fuses ...
  • Page 116 If a fuse is outboard motor to an authorized blown, install a replacement fuse of the same specified rating. The TOHATSU dealer for inspection and outboard motor is supplied with service, or refer to the service ACG FUSE (70 A) spare fuses in the fuse holder.

  • Page 117: Oil Pressure Indicator Turns Off And Engine Speed Is Limited

    TAKING CARE OF UNEXPECTED PROBLEMS 4. Remove the old fuse by removing OIL PRESSURE INDICATOR If oil pressure becomes low, the oil TURNS OFF AND ENGINE two 5 mm screws. pressure indicator will turn off, and SPEED IS LIMITED the engine protection system limits 5.

  • Page 118: Overheat Indicator Comes On And Engine Speed Is Limited

    OVERHEAT INDICATOR an authorized TOHATSU dealer. If the engine is stopped after running at full throttle, and then restarted soon afterward, that could activate the (RED) engine protection system momentarily.

  • Page 119: Water Separator Buzzer Sounds

    91, or consult activated after 30 seconds, return to with an authorized TOHATSU dealer. the nearest boat landing, and have the outboard motor inspected by an authorized TOHATSU dealer.

  • Page 120: Submerged Outboard Motor

    If there is a TOHATSU dealership 4. Remove the spark plugs (p.83). supply water. nearby, take the outboard motor to the Operate the starter to expel water dealer immediately.
  • Page 121 2 inches (5 cm) above the antiventilation plate  to avoid overheating and water pump damage. 7. As soon as possible, take the outboard motor to an authorized TOHATSU dealer for inspection and service.

  • Page 122: Technical Information

    TECHNICAL INFORMATION Serial Number Locations PRODUCT IDENTIFICATION NUMBER ENGINE SERIAL NUMBER Record the product identification number, the engine serial number, and the date of purchase in the space provided on this page. You will need these numbers when ordering parts and when making technical or warranty inquiries.

  • Page 123: Battery

    WARNING: Battery posts, terminals, toxic. will damage the battery-charging and related accessories contain lead system in the outboard motor. TOHATSU utilizes appropriate air/ and lead compounds. Wash your • Do not disconnect the battery fuel ratios and other emissions hands after handling.
  • Page 124 Among those acts that constitute procedures must be followed in order conditions. tampering are: to keep the emissions from your TOHATSU engine within the • Removal or alteration of any part emission standards. of the intake, fuel, or exhaust systems.
  • Page 125 Maintenance Emissions The emission control systems on your Follow the MAINTENANCE TOHATSU engine were designed, SCHEDULE on p.74. Remember that If you are aware of any of the built, and certified to conform with this schedule is based on the...

  • Page 126: Star Label

    TECHNICAL INFORMATION Star Label The Star Label means Cleaner Marine Engine US, Puerto Rico, and US Virgin Islands This engine has been certified as a: A Star label was applied to this outboard motor in accordance with the requirements of the California Air Resources Board.
  • Page 127 TECHNICAL INFORMATION The one-star label identifies engines that meet the Air Resources Board’s Personal Watercraft and Outboard marine engine 2001 exhaust emission One Star standards. Engines meeting these standards have 75% lower emissions than conventional carbureted two-stroke engines. These engines are equivalent to Emission the U.S.

  • Page 128: Specifications

    Tilt up angle Full transistor battery Ignition system 8°, 12°, 16°, 20°, 24° Transom angle Lubrication Trochoid pump pressure lubrication system * With propeller These TOHATSU outboard motors are power rated in accordance with NMMA procedures and using the ICOMIA standard 28/23.
  • Page 129 Starter system 8°, 12°, 16°, 20°, 24° Transom angle Full transistor battery Ignition system Lubrication Trochoid pump pressure lubrication system * With propeller These TOHATSU outboard motors are power rated in accordance with NMMA procedures and using the ICOMIA standard 28/23.
  • Page 130 TECHNICAL INFORMATION BFT75A/BFT90A Tune up 0.031-0.035 in (0.8-0.9 mm) See page 84 Spark plug gap  See service manual Idle speed 50 rpm  Intake: 0.17 0.02 mm See service manual Valve clearance (cold)  Exhaust: 0.28 0.02 mm No other adjustment is needed Other specifications...

  • Page 131: Consumer Information

    CONSUMER INFORMATION Emission Control System Warranty CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT YOUR Your new Tohatsu outboard engine complies with both the WARRANTY RIGHTS AND OBLIGATIONS U.S. EPA and State of California emission regulations. The California Air Resources Board (CARB) and Tohatsu...
  • Page 132 You are responsible for presenting your outboard engine to a Tohatsu dealer as soon as a problem exists. The warranty repairs will be completed in a reasonable amount of time, not to exceed 30 days.
  • Page 133 Tohatsu purchase date, at your expense, to any Tohatsu dealer that America Corporation. A list of warranty parts is on the is authorized by Tohatsu America Corporation to sell and reverse side of this statement.
  • Page 134 Failures other than those resulting from defects in material WARRANTIES: or workmanship are not covered by this warranty. This Tohatsu America Corporation disclaims any responsibility warranty does not extend to emission control systems or for incidental or consequential damages such as loss of...
  • Page 135 CONSUMER INFORMATION EMISSION CONTROL SYSTEM WARRANTY PARTS: SYSTEMS COVERED PARTS DESCRIPTION: BY THIS WARRANTY: Fuel Metering Carburetor assembly, Throttle body, Fuel injector, Fuel pump, Fuel pressure regulator, Throttle position sensor, Intake air temperature sensor, Engine temperature sensor, Manifold absolute pressure sensor, Idle air control valve, Barometric pressure sensor, Fuel line solenoid valve, Intake manifold, Intake valves, and Oxygen sensor or Air fuel ratio sensor Evaporative...

  • Page 136: Index

    INDEX Alternator (ACG) Indicator ........... 34 Side-Mount Type ............ 18 Anodes................39 Top-Mount Type ............. 25 Replacement ............98 Emission Control System Information ......121 ARE YOU READY TO GET UNDERWAY? ..... 43 Emission Control System Warranty......129 Engine Battery ................ 121 Cover Will Not Charge ...........
  • Page 137 INDEX Fast Idle Button HARD STARTING OR STALLS AFTER Panel-Mount Type ..........24 STARTING ............111 Top-Mount Type ............ 28 HOISTING THE OUTBOARD MOTOR ....105 Fast Idle Lever............... 20 Fuel Ignition Switch Filler Cap Vent Knob..........38 Panel-Mount Type ..........21 Filter Inspection and Replacement......
  • Page 138 INDEX NMEA Interface Coupler ..........40 SAFE OPERATING PRECAUTIONS......45 SAFETY LABEL LOCATION ........9 Oil Pressure Indicator ............ 35 Serial Number Locations ..........120 OIL PRESSURE INDICATOR TURNS OFF AND SERVICING YOUR OUTBOARD MOTOR ....71 ENGINE SPEED IS LIMITED......115 SHALLOW WATER OPERATION ......
  • Page 139 INDEX Tachometer (optional equipment) ......... 33 TAKING CARE OF UNEXPECTED PROBLEMS... 108 TECHNICAL INFORMATION ......... 120 THE IMPORTANCE OF MAINTENANCE....71 Tilt Lock Lever.............. 32 TOOL KIT and OWNER’S MANUAL ......73 TRANSPORTING............107 WITH OUTBOARD MOTOR INSTALLED ON BOAT............107 WITH OUTBOARD MOTOR REMOVED...
  • Page 140 MEMO...
  • Page 141 MEMO...
  • Page 142 MEMO...
  • Page 143 © 2013 Honda Motor Co., Ltd. − All Rights Reserved PGM-FI is a trademark of Honda Motor Co., Ltd. registered in Japan and other countries.
  • Page 144 BFT 75A TOHATSU CORPORATION Address : 5-4,AZUSAWA 3-CHOME ITABASHI-KU, TOKYO 174-0051 Phone : +81-3-3966-3117 : +81-3-3966-2951 : www.tohatsu.co.jp 000 00000 0 31ZY9T00 Printed in Japan 00X31-ZY9-T000...

Table of Contents