Related Manuals for TOHATSU M 6B
Summary of Contents for TOHATSU M 6B
- Page 1 O W N E R’ S M A N U A L トーハツ船外機 オーナーズマニュアル Original instructions M 6B M 8B M 9.8B OB No.003-11029-NBB1...
- Page 2 MANUAL IN A SAFE LOCATION FOR FUTURE REFERENCE. Copyright © 2022 Tohatsu Corporation. All rights reserved. No part of this manual may be reproduced or transmitted in any from or by any means without the express written permission of Tohatsu Corporation.
- Page 3 In case you encounter any problems, please contact an authorized TOHATSU service shop or dealer for assistance. Tohatsu Corporation reserves the right to change, modify, add, or remove a part or whole of the owner’s manual without prior notice and incurring any obligations.
- Page 4 ENOM00113-1 DECLARATION OF CONFORMITY (DoC) This product conforms to certain portion of the European Parliament directive and UK Regulations. DoC contains the following information; Name and Address of the manufacturer, EU - notified body, EU - authorized repre- sentative, and UK - approved body. Applied community directives and regulations Reference standard Description of the product.
- Page 5 ENOM00007-0 NOTICE: DANGER/WARNING/CAUTION/Note Before installing, operating or otherwise handling your outboard motor, be sure to thor- oughly read and understand this Owner's Manual and carefully follow all of the instruc- tions. Of particular importance is information preceded by the words “DANGER,” “WARNING,”...
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Page 7: Table Of Contents
CONTENTS 1. GENERAL SAFETY INFORMATION ........10 2. - Page 8 11. TROUBLESHOOTING ..........64 12.
- Page 9 INDEX 1. GENERAL SAFETY INFORMATION 2. SPECIFICATIONS 3. PARTS NAME 4. LABEL LOCATIONS 5. INSTALLATION 6. PRE-OPERATING PREPARATIONS 7. ENGINE OPERATION 8. REMOVING AND CARRYING THE OUTBOARD MOTOR 9. ADJUSTMENT 10. INSPECTION AND MAINTENANCE 11. TROUBLESHOOTING 12. TOOL KIT AND SPARE PARTS 13.
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Page 10: General Safety Information
GENERAL SAFETY INFORMATION ENOM00009-1 SAFE OPERATION OF BOAT As the operator/driver of a 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 11 Be sure to use genuine parts, genuine lubricants, or recom- mended lubricants. Be aware that the installation and use of parts not approved by Tohatsu Corporation will void warranty and may lead to unsafe operating conditions. ENOM00011-1...
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Page 12: Specifications
SPECIFICATIONS ENOM00810-B MODEL FEATURE Model M9.8B Type Transom heights Tiller Handle ( )*1 ( )*1 ( )*1 ( )*1 Remote Control Manual tilt *1 Option ENOM00811-C MODEL NAME EXAMPLE M9.8B EFL Horse Product Starter Steering Shaft Model description power generation system system length... - Page 13 2.08 (13 : 27) Operator Sound Pressure (ICOMIA 39/94) dB (A) 84.4 Hand Vibration Level (ICOMIA 38/94) m/s Remark: Specifications are subject to change without notice. * : With manual starter. Tohatsu outboard is power rated in accordance with ISO8665 (propeller shaft output).
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Page 14: Parts Name
PARTS NAME ENOM01501-0 6B MF, 8B MF, 9.8B MF ENOF02203-0 Tilt Handle Starter Handle Choke Knob Top Cowl Shift Lever Fuel Connector Bottom Cowl Throttle Grip Spark Plug Cooling Water Check Port Clamp Screw Fuel Filter Tilt Stopper Clamp Bracket Drive Shaft Housing Thrust Rod Water Plug... - Page 15 PARTS NAME ENOM01502-0 9.8B EF ENOF02204-0 Tilt Handle Starter Handle Stop Switch Top Cowl Shift Lever Main Switch Bottom Cowl Throttle Grip Fuel Connector Cooling Water Check Port Clamp Screw Battery Cord Tilt Stopper Clamp Bracket Spark Plug Drive Shaft Housing Thrust Rod Fuel Filter Water Plug...
- Page 16 PARTS NAME ENOM00822-0 Remote control box & Fuel tank ENOF02103-2 Control Lever Air vent screw Neutral lock arm Fuel tank cap Free throttle lever Fuel connector (Engine side) Main switch Primer bulb Stop switch Fuel connector (Fuel tank Stop switch lock side) Stop switch lanyard...
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Page 17: Label Locations
LABEL LOCATIONS ENOM00019-A Warning label locations 1, 2 3, 4 ENOF02206-3... - Page 18 LABEL LOCATIONS 1, 3. Read owner's manual. For RC model Be sure to fasten one end of the stop switch lanyard to your body during operation. 3F0X72185-0 Engine stop switch (See page 37). ENOF00008-1 Warning regarding gasoline (See page 24). ENOF00131-B HOT SURFACE Can cause burns.
- Page 19 LABEL LOCATIONS ENOM01001-0 Serial number label locations 1521 CAN ICES-2 / NMB-2 ENOF02207-3 1. Model code (Model name) 2. Serial No. 3. Rated power 4. Dry mass weight 5. Manufacture name 6. Manufacture address 7. Authorised representative 8. Authorised representative address Description of serial number year code Last two digits of alphabet represent production year as below.
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Page 20: Installation
INSTALLATION Keep the outboard motor in a vertical ENOM00024-B 1. Mounting the outboard position when mounting. motor on boat ENOW00006-1 WARNING Most boats are rated and certified for their maximum allowable horsepower, as shown on the boat’s cer tification plate. Do not equip your boat with an outboard motor that exceeds this limit. - Page 21 INSTALLATION ENOM00026-0 ENOM00832-0 Transom matching Mounting the outboard motor Be sure that the anti ventilation plate of 1. Set the outboard motor to appropri- the outboard motor is 30–50 mm (1.2–2 ate position. in) below the bottom of hull. 2. Tighten the clamp screws by turning If the above condition cannot be met due their handles.
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Page 22: Battery Installation
INSTALLATION Do not smoke near the battery when the ENON00003-B Note battery is charging. Do not charge the battery when the elec- Apply sealing agent, such as silicone sealed trolyte level is low. Otherwise, the bat- between the bolts and the transom board ter y will be damage d and may cause holes before tightening the bolts. - Page 23 INSTALLATION 1. Place the battery box in a convenient position away from possible water and moisture. Securely fasten both the box and the battery so they do not shake loose. 2. Connect the positive lead (+) to the positive terminal (+) of the battery, and then connect the negative lead (—).
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Page 24: Pre-Operating Preparations
When operating an outboard motor with The fuel system components on your gasoline containing ethanol, storing gasoline TOHATSU outboard motor will withstand in the fuel tank for long periods should be up to 10% ethyl alcohol (hereinafter avoided. Storing gasoline for long periods referred to as the "ethanol") content in... -
Page 25: Fuel Filling
PRE-OPERATING PREPARATIONS The static electricity may ignite the gaso- ENOW00018-1 line vapor during refueling. WARNING Stop the engine, and do not start the engine during refueling. Fuel leakage can cause fire or explosion, Do not smoke. potentially leading to severe injury or loss of Be careful not to overfill fuel tank. -
Page 26: Engine Oil Recommendation
PRE-OPERATING PREPARATIONS Use a genuine two stroke engine oil or ones recommended (TC-W3). Refer to your Distributor. Use of other two stroke engine oil is not recommended. Add engine oil into fuel tank. The mixing ratio of gasoline and oil is 50:1. Make sure that gasoline and oil are mixed well. - Page 27 PRE-OPERATING PREPARATIONS For engine oil and gasoline mixing ratio, Put cap on the container, and close tightly. refer to table in previous page. Shake the container to mix engine oil When portable fuel tank is used for and gasoline well. operation of outboard motor(s): Pour the fuel into fuel tank.
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Page 28: Break-In
PRE-OPERATING PREPARATIONS ENOM00033-B 4. Break-In Your new outboard motor and lower unit ENOW00023-1 require break-in for the moving compo- CAUTION nents a ccording to the conditions Operating the outboard motor without described in the following timetable. break-in can shorten life of the product. ENOW00024-1 If any abnormality is experienced during the break-in:... -
Page 29: Engine Operation
ENGINE OPERATION 1. Fully open the air vent screw on the ENOM00042-0 Before starting fuel tank cap. ENOW00022-B CAUTION Be sure to fill the engine before star ting engine. (To properly fill the engine with oil follow the instructions. See page 26) ENOF00417-1 1. -
Page 30: Starting The Engine
ENGINE OPERATION ENOW00959-0 CAUTION The top cowl must be installed while the engine running except in an emergency. If the top cowl is not installed correctly, water splash can damage the engine. ENOW00036-A CAUTION ENOF00861-A 1. Pull When starting the outboard motor in the 2. - Page 31 ENGINE OPERATION This model is provided with start in gear 3. Set the throttle grip to START posi- protection. tion. ENON00010-1 Note Start-in-gear protection prevents the engine from starting at other than neutral shift. In-gear starting of engine will move the boat immediately, potentially leading to fall down or causing passenger(s) to be thrown overboard.
- Page 32 ENGINE OPERATION (For manual starter type) If cranking over 5 seconds fails to star t engine, return main switch to “ON”, and 5. Pull the starter handle slowly until you crank engine again after 10 seconds or more. feel engagement, keep pulling till you feel less resistance.
- Page 33 ENGINE OPERATION Do not pull starter rope if any bystander is 4. Insert the knotted end of the starter around. rope into the notch in the flywheel Attach engine stop switch lanyard to clothing or any part of body such as wrist, and wind the rope around the fly- arm before starting engine the outboard wheel clockwise several times.
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Page 34: Warming Up The Engine
ENGINE OPERATION 8. Pull the starter handle slowly until you feel engagement, keep pulling till you feel less resistance, then pull it quickly. ENOF02218-0 1. Cooling water check port 2. Idle port ENOM00044-A ENOF02223-0 Engine speeds Idling speed after warming up. 9. - Page 35 ENGINE OPERATION Arrange the tether so that will not be ENOW00863-0 caught by any object when pulled. CAUTION Be careful not to pull the tether acciden- tally during cruising. Unintentional stop of Idle speed may be higher during warming up engine can cause loss of control of out- of engine.
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Page 36: Stopping The Engine
ENGINE OPERATION 2. When the engine reaches trolling (or is running. Sudden stop of engine can cause loss of steering control, speed, possibly idling) speed, quickly pull the shift leading the crew(s) and or objects on the lever to the Reverse position. boat to be thrown forward due to inertial force. -
Page 37: Steering
ENGINE OPERATION 3. Push the stop switch for a few sec- ENOM00910-1 Spare emergency stop switch lock (For onds to stop the engine. CE marking model) A spare emergency stop switch lock is provided in the accessories bag. Make sure that spare stop switch lock is available before operating outboard motor. -
Page 38: Trim Angle
ENGINE OPERATION ENOM00050-0 7. Trim angle ENOW00043-1 WARNING Adjust the trim angle when the engine is stopped. ENOF00051-1 Do not put hand or finger in between out- 1. Perpendicular to the water surface board motor body and clamp bracket when adjusting trim angle to prevent pos- ENOM00053-0 sible injury. -
Page 39: Tilt Up And Down
ENGINE OPERATION ENOM00060-A 8. Tilt up and down ENOW00055-1 WARNING Do not tilt the outboard motor up or down when swimmer(s) and/or passenger(s) are near to prevent them from being caught between outboard motor body and clamp bracket. ENOW00048-1 ENOF02229-0 WARNING 1. -
Page 40: Shallow Water Operation
ENGINE OPERATION Tilt up With the shift lever in Neutral or Forward, fully tilt the motor up toward you by hold- ing the tilt handle provide at the rear of the top cowl. Then slightly lower the motor for locking in the up position. ENOF00545-A 1. - Page 41 ENGINE OPERATION Return to normal running position: ENOW00054-1 2. Tilt the motor up fully and then return CAUTION the motor down slowly to the normal Do not over tilt the outboard motor when running position. driving in shallow water, or air may be sucked through water inlet and sub-water inlet, potentially leading to engine overheating.
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Page 42: Removing And Carrying The Outboard Motor
REMOVING AND CARRYING THE OUTBOARD MOTOR Fuel leakage is a fire or explosion hazard, ENOM00070-G which can cause serious injury or death. 1. Removing the outboard motor ENOW00065-1 WARNING ENOW00064-1 CAUTION Close air vent screw on fuel tank before car- rying or storing outboard motor and fuel Engine may be hot immediately after opera- tank, or fuel may leak, potentially catching... -
Page 43: Trailering
REMOVING AND CARRYING THE OUTBOARD MOTOR Fuel leakage is a fire or explosion hazard, which can cause serious injury or death. ENOF00075-1 ENOW00068-0 WARNING Close air vent screw of fuel tank and fuel cock before carrying or storing outboard motor and fuel tank, or fuel may leak, poten- ENOF02232-0 tially catching fire. - Page 44 REMOVING AND CARRYING THE OUTBOARD MOTOR ENOF00074-B 1. Ground clearance should be provided sufficiently. 2. Transom saver bar ENOW00067-0 WARNING Do not go under outboard motor tilted up even if it is supported by support bar, or accidental fall of outboard motor could lead to severe personal injury.
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Page 45: Adjustment
ADJUSTMENT ENOM00073-C ENOM00074-A 1. Steering friction 2. Throttle grip friction ENOW00074-2 ENOW00074-1B WARNING WARNING Steering may be difficult when steering fric- Do not overtighten the throttle adjustment tion adjustment bolt is over tightened, it may screw or it could result in difficult handling also result in loss of control causing an acci- of the outboard motor, resulting in the loss dent and could lead to severe injury. - Page 46 ADJUSTMENT Be sure to lock the outboard motor in the ENON00022-A Notes tilt up position, or accidental fall of out- board motor could lead to severe per- After adjustment securely tighten the sonal injury. trim tab fixing bolt. Do not go under outboard motor in the tilt Check for looseness of the bolt and the up position and locked, or accidental fall trim tab at regular intervals.
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Page 47: Inspection And Maintenance
INSPECTION AND MAINTENANCE ENOM00077-1 Care of your outboard motor To keep your outboard motor in the best operating condition, it is very important that you perform daily and periodic maintenance as suggested in the mainte- nance schedules as follows. ENOW00077-1 CAUTION Your personal safety and that of your pas- sengers depends on how well you main-... -
Page 48: Daily Inspection
INSPECTION AND MAINTENANCE ENOM01203-0 1. Daily Inspection Perform the following checks before and ENOW00078-0 after use. WARNING Do not use outboard motor if any abnormal- ity is found during pre-operation check or it could result in severe damage to the motor or severe personal injury. - Page 49 INSPECTION AND MAINTENANCE ENOM00083-0 ENOM00085-D Washing outboard motor Flushing attachment 1. Tilt down the outboard motor. ENOW00081-1 2. Remove the water plug from the gear WARNING case, and scre w in the flushing Do not start engine without removing pro- attachment.
- Page 50 When starting the outboard motor in the test tank, make sure that: blow, request an authorized Tohatsu 1. Water level is at least 10 cm (4 in.) above dealer for inspection. the anti-ventilation plate to avoid over- 1.
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Page 51: Periodic Inspection
INSPECTION AND MAINTENANCE ENOM01106-1 2. Periodic Inspection It is important to inspect and maintain your outboard motor regularly. Make sure to per- form each service at interval specified in the chart below. Maintenance intervals are determined by the number of hours outboard motor has been used or number of months, whichever comes first. - Page 52 INSPECTION AND MAINTENANCE 1. Fuel pump ENOM00093-1C Fuel filters and fuel tank cleaning 2. Fuel pipe 3. Fuel filter ENOW00093-A WARNING ENOM00096-A Fuel filter (for fuel tank) Gasoline and its vapor is very flammable and 1. Remove the fuel pickup elbow of the can be explosive.
- Page 53 INSPECTION AND MAINTENANCE 3. Insert the oil tube nozzle into the ENOM00098-1A Gear oil replacement lower oil plug hole and fill with gear oil ENOW00076-1 by squeezing the oil tube until oil WARNING flows out of the upper plug hole. Make sure that no bubbles are coming out Be sure that the outboard motor is of the upper plug hole and there is no...
- Page 54 INSPECTION AND MAINTENANCE ENOW00086-1 CAUTION Do not install propeller without thrust holder, or propeller boss could be dam- aged. Do not reuse split pin. After installing split pin, spread bend both end of the pin apart to lock propeller in place.
- Page 55 INSPECTION AND MAINTENANCE 5. Install the thrust holder, propeller, ENOM00087-A Spark plugs replacement stopper, washer and propeller nut ENOW00087-1 onto the shaft. WARNING Do not reuse spark plug, if the insulation is damaged or sparks can leak through crack, potentially leading to electric shock, explosion and/or fire.
- Page 56 INSPECTION AND MAINTENANCE 6. Measure the spark gap with a wire type feeler gauge. The gap should be 0.9-1.0 mm (0.035-0.039 inches). If the gap is different, replace the spark plug with a new one Use spark plug NGK BPR7HS-10 ENOF00085-0 1.
- Page 57 INSPECTION AND MAINTENANCE ENOM00088-1A Anode replacement A sacrificial anode protects the outboard motor from galvanic corrosion. Anode is located on the gear case, cylinder etc.. When the anode is eroded more than 1/3 of original size, replace it. ENON00029-1 Notes Never grease or paint the anode.
- Page 58 INSPECTION AND MAINTENANCE ENOM00960-0 Grease point Apply waterproof grease to the parts shown below. ENOF02239-0...
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Page 59: Off-Season Storage
INSPECTION AND MAINTENANCE 2. Remove the fuel hose from the out- ENOM00100-A 3. Off-season storage board motor. 3. Drain all fuel from the fuel hoses, fuel ENOW00934-0 pump, fuel filter (See page 52) and WARNING carburetor (See page 61), and clean these parts. - Page 60 INSPECTION AND MAINTENANCE ENOF02233-A 1. Handle ENOM00950-A Adding a fuel stabilizer When adding a fuel stabilizer additive (commercially available), first fill the fuel tank with fresh oil and fuel. If the fuel tank is only partially filled, air in the tank ENOF02232-0 may deteriorate the fuel during storage.
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Page 61: Pre-Season Check
INSPECTION AND MAINTENANCE ENOM00970-B Fuel system draining ENOW00028-A WARNING For details on handling fuel, contact an authorized dealer. Fuel and fuel vapors are extremely flamma- ble and can be explosive. If fuel is spilled, wipe it up immediately. Keep the fuel tank well away from sources of ignition, e.g. -
Page 62: Submerged Outboard Motor
INSPECTION AND MAINTENANCE 5. Connect the fuel line to the engine, 3. Inject a sufficient amount of engine and squeeze primer bulb. oil through the spark plug holes. Pull the recoil starter rope several 6. Before starting the engine, discon- times to circulate the oil throughout nect stop switch lock and pull recoil the outboard motor. -
Page 63: Auxiliary Outboard Motor Operation
INSPECTION AND MAINTENANCE ENOF01145-0 ENOM00120-2 8. Auxiliary outboard motor operation When the auxiliary outboard motor is not in operation, be sure to remove the stop switch lock, shift into forward, and then tilt the outboard motor up. Otherwise, over-rotation of the propeller due to water spray and water ingestion that could cause damage to the outboard motor. - Page 64 TROUBLESHOOTING ENOM00108-1 If you encounter a problem, check the 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 pipe Closed air vent on fuel tank...
- Page 65 TROUBLESHOOTING Possible cause Incorrect adjustment of throttle link Insufficient cooling water flow, clogged or defective pump Faulty thermostat Cavitation or ventilation Incorrect propeller selection Damaged and bent propeller Improper thrust rod position Unbalanced load on boat Transom too high or too low...
- Page 66 TOOL KIT AND SPARE PARTS ENOM01506-0 The followings are a list of the tools and spare parts provided with the motor. Items Quantity Remark Tool Bag Pliers Socket Wrench 10 x 13 mm Servicing Tools Socket Wrench 21 mm Socket Wrench Handle Screwdriver (Phillips-type and flat head) Adapter-type Rope...
- Page 67 PROPELLER TABLE ENOM01108-1 To ensure optimum performance, the propeller should match the boat type and its load. Use a genuine propeller. When selecting propeller, make sure that RPM stays in the maximum operating range of engine at wide open throttle. Recommended range at WOT: 6B, 8B = 4,500 to 5,500 min- (rpm) 9.8B = 5,000 to 6,000 min-...
- Page 70 O W N E R’ S M A N U A L M 6B M 8B M 9.8B 5-4, Azusawa 3-Chome, Itabashi-Ku Tokyo 174-0051, Japan Tel: +81-3-3966-3117 Fax: +81-3-3966-0090 www.tohatsu.com...