TOHATSU MFS 6BZ Owner's Manual
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TOHATSU MFS 6BZ Owner's Manual

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OWNER'S
MANUAL
MFS 6BZ
MFS 8B
MFS 9.8B
Original instructions
OB No.003-11113-2AF1

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  • Page 1 OWNER’S MANUAL MFS 6BZ MFS 8B MFS 9.8B Original instructions OB No.003-11113-2AF1...
  • Page 2 INJURY OR DEATH. KEEP THIS MANUAL IN A SAFE LOCATION FOR FUTURE REFERENCE. Copyright © 2016 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 ENOM00006-A To You, Our Customer Thank you for selecting a TOHATSU outboard motor. You are now the proud owner of an excellent outboard motor that will service you for many years to come. This manual should be read in its entirety and the inspection and maintenance procedures described later in this manual should be followed carefully.

  • Page 4: Serial Number

    ENOM00005-A Serial Number In the space below, please record the outboard motor's serial number (indicated both on the clamp bracket or swivel bracket and on the cylinder block). The serial number will be needed when ordering parts, and when making technical or warranty inquiries. Serial Number: MF/EF model ENOF01400-1...
  • 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,”...

  • Page 7: Table Of Contents

    CONTENTS 1. GENERAL SAFETY INFORMATION ....... 10 2. SPECIFICATIONS ..........12 3.
  • Page 8 11. TROUBLESHOOTING ......... . 82 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. ACCESSORIES KIT 13. PROPELLER TABLE...

  • Page 10: General Safety Information

    GENERAL SAFETY INFORMATION ENOM00009-0 SAFE OPERATION OF BOAT As the operator/driver of the boat, you are responsible for the safety of those aboard and those in other boat around yours, and for following local boating regulations. You should be thoroughly knowledgeable on how to correctly operate the boat, outboard motor, and accessories.
  • Page 11 GENERAL SAFETY INFORMATION ENOM00010-0 SERVICING, REPLACEMENT PARTS & LUBRICANTS We recommend that only an authorized service shop perform service or maintenance on this outboard motor. Be sure to use genuine parts, genuine lubricants, or recommended lubricants. ENOM00011-A MAINTENANCE As the owner of this outboard motor, you should be acquainted with correct maintenance procedures following maintenance section of this manual (See page 60).

  • Page 12: Specifications

    SPECIFICATIONS ENOM00810-A MODEL FEATURE Model F9.8B Type Transom heights Tiller Handle Remote Control Power Tilt Mnual tilt *1: Option ENOM00811-A MODEL NAME EXAMPLE F 9.8B EPTL Model descrip- Horse Product Starter Steering Tilt system Shaft length tion power generation system system T= Power P=Remote control...
  • Page 13 Operator Sound Pressure 81.5 (ICOMIA 39/94) dB (A) Hand Vibration Level — (ICOMIA 38/94) m/s Remark: Specifications subject to change without notice. *1 With propeller, with battery cable. Tohatsu outboard is power rated in accordance with ISO8665 (propeller shaft output).
  • Page 14 Operator Sound Pressure 81.5 (ICOMIA 39/94) dB (A) Hand Vibration Level — (ICOMIA 38/94) m/s Remark: Specifications subject to change without notice. *1 With propeller, with battery cable. Tohatsu outboard is power rated in accordance with ISO8665 (propeller shaft output).
  • Page 15 Operator Sound Pressure 81.5 (ICOMIA 39/94) dB (A) Hand Vibration Level — (ICOMIA 38/94) m/s Remark: Specifications subject to change without notice. *1 With propeller, with battery cable. Tohatsu outboard is power rated in accordance with ISO8665 (propeller shaft output).

  • Page 16: Parts Name

    PARTS NAME ENOM00820-0 MF, EF, EP ENOF01402-1 Tilt Handle Splash Plate Stop Switch *1 Top Cowl Thrust Rod Stop Switch Lanyard Bottom Cowl Clamp Bracket Choke Konob Cooling Water Check Port Clamp Screw Fuel Connector Oil Drain Plug Tiller Handle *1 Starter Switch *2 Water Plug Throttle Grip *1...
  • Page 17 PARTS NAME ENOM00020-0 EFT, EPT ENOF01403-1 Tilt Handle Splash Plate Stop Switch *1 Top Cowl Tlim Lock Pin Stop Switch Lanyard Bottom Cowl Clamp Bracket Choke Konob Cooling Water Check Port Clamp Screw Fuel Connector Oil Drain Plug Tiller Handle *1 Starter Switch Water Plug Throttle Grip *1...
  • Page 18 PARTS NAME ENOM00822-0 Remote control box & Fuel tank ENOF01404-0 Control Lever Fuel gauge Neutral lock arm Air vent screw PTT switch Fuel tank cap Free throttle lever Fuel connector (Engine side) Main switch Primer bulb Stop switch Fuel connector (Fuel tank side) Stop switch lock Stop switch lanyard...

  • Page 19: Label Locations

    LABEL LOCATIONS ENOM00019-A Warning label locations 2, 3 ENOF01405-1...
  • Page 20 LABEL LOCATIONS 5-1. Warning regarding emergency start- Warning label regarding installation of ing (See page 39). remote control system (See page 25). 5-2. Warning regarding high temperature. 5-3. Warning regarding rotating object. 5-4. Warning regarding high voltage ENOF00120-0 Warning label regarding oil pressure (See page 32).
  • Page 21 LABEL LOCATIONS Warning regarding gasoline (See page 29). ENOF00005-L...
  • Page 22 LABEL LOCATIONS ENOM00019-B CE label locations MF/EF model r o t 4) 5) l a i ENOF01406-1 EP/EFT/EPT model r o t 4) 5) l a i ENOF01406-A 1. Model code(Model name) 2. Rated power 3. Dry mass weight( Without propeller, with battery cable) 4.

  • Page 23: Installation

    INSTALLATION Keep the outboard motor in a vertical posi- ENOM00024-B 1. Mounting the outboard motor on tion when mounting. boat ENOW00006-0 WARNING 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.
  • Page 24 INSTALLATION ENON00002-0 Note A rope is not included in the standard accessories. 5−25 mm (0.2−1 in) ENOF01408-0 1. Bottom of hull 2. Anti ventilation plate ENOW00007-0 ENOF00016-0 1. Bolt (8 × 85) CAUTION 2. Nut 3. Washer Before beginning the running test, check 4.

  • Page 25: Remote Control Device Installation

    INSTALLATION ENOM00840-0 2. Remote control device installation ENOW00850-0 Remote control box location 1, 2 ENOF00841-0 ENOF00508-0 1. Shift cable 2. Throttle cable 3. Cable harness B ENOW00008-A CAUTION Install the remote control box in a position where it is easy to reach and operate the Mounting bolts should be installed with the bolt head at inside surface of the controls.

  • Page 26: Battery Installation

    INSTALLATION contact with your eye, loss of sight. Use safety glasses and rubber gloves. In case battery electrolyte comes in con- tact 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.
  • Page 27 INSTALLATION ENOW00015-0 CAUTION Do not use a battery that is not recom- mended. Use of a battery not recom- mended can lead to poor performance of, and/or damage to, the electrical system. ENON00006-A Note Recommended battery: 12V 40Ah/5HR, 350 (Cold Cranking Amps (CCA), In case of cold whether: 12V 70Ah/5HR (650CCA)) Specifications and features of batteries vary among the manufacturers.

  • Page 28: Pre-Operating Preparations

    The fuel system components on your gasoline in the fuel tank for long periods TOHATSU engine will withstand up to 10% should be avoided. Long periods of stor- age, common to boats, create unique prob- ethyl alcohol (hererinafter referred to as the lems.

  • Page 29: Fuel Filling

    PRE-OPERATING PREPARATIONS age if alcohol has washed protective oil Be sure to remove the static electricity films from internal components. charged in your body before refueling. The sparks due to static electricity may cause explosion of flammable gasoline. ENOW00018-0 Stop the engine, and do not start the WARNING engine during refueling.

  • Page 30: Engine Oil Recommendation

    PRE-OPERATING PREPARATIONS 1. Full open the air vent screw on the fuel tank cap and release internal pressure. ENOF01409-0 ENOF00417-0 Use only high quality 4-stroke engine oil to 1. Air vent screw insure performance and prolonged engine 2. Fuel tank cap life.

  • Page 31: Break-In

    PRE-OPERATING PREPARATIONS ]ENOM00033-A 4. Break-In Your new outboard motor and lower unit Always attempt to stay on the windward side of emission. require break-in for the moving compo- n e n t s a c c o r d i n g t o t h e c o n d i t i o n s described in the following time table.

  • Page 32: Warning System

    PRE-OPERATING PREPARATIONS ENOM00039-0 5. Warning system If outboard motor encounters an abnormal condition of fault, the warning horn will emit a continuous beep or intermittent short beeps and the warning lamp (LED) will synchronize with the horn and engine speed will be limited (engine will not be ENOF00851-A stopped).
  • Page 33 PRE-OPERATING PREPARATIONS ENOM00041-C Warning indicators, faults and remedy Warning indicators Description of faults Remedy Sound Lamp (LED) (EPT only) On for several Normal system test when start up sec. Engine speed exceeds maximum High speed ESG allowable RPM Continuous Low speed ESG Low oil pressure Remarks *1: In this case, oil pressure switch is “ON”.
  • Page 34 PRE-OPERATING PREPARATIONS Remedy Reduce the throttle to less than half opening, and move to safe place quickly, and stop the engine. Check the propeller for bent or dam- aged blades. Consult an authorized dealer if engine shows the same result even after replacing propeller with new one.

  • Page 35: Engine Operation

    ENGINE OPERATION tank is raised by heat from sources such as ENOM00042-0 sun light. Before starting ENOW0947-0 ENOW00022-A CAUTION CAUTION When using a separate tank, be sure that The engine oil is drained for shipping from the fuel line is not kinked and is connected the factory.

  • Page 36: Starting The Engine

    ENGINE OPERATION ENOF00861-A 1. Pull ENOF00863-0 2. Insert 1. Test tank 4. Squeeze primer bulb until it becomes 2. Water 3. Over 10 cm (4 in.) stiff to feed fuel to vapor separator. Direct arrow mark upward when prim- ing. ENOW00036-0 CAUTION Be sure to stop engine immediately if cool-...
  • Page 37 ENGINE OPERATION immediately, potentially leading to falling 3. Set the throttle grip to START position. down or causing passenger(s) to be thrown overboard. Tiller handle type 1. Be sure to install the stop switch lock to the stop switch, and attach the stop switch lanyard securely to the operator or to the operator's PFD (Personal Flo- ENOF01107-0...
  • Page 38 ENGINE OPERATION 6. Pull the starter handle slowly until you crank engine again after 10 seconds or more. feel engagement, keep pulling till you feel less resistance. Then pull it quickly. repeat if necessary until started. 5. Check the cooling water from cooling water check port.

  • Page 39: Emergency Starting

    ENGINE OPERATION The key returns to the original position, automatically. 7. Returns the Free accel lever to close position. 8. Confirm warning lamp light up and then go off after engine has started. ENOF00870-0 1. Neutral (N) 2. Control lever 3.
  • Page 40 ENGINE OPERATION To prevent accident and injury by rotat- ing parts, do not re-attach flywheel 4. Insert the knotted end of the starter cover and the top cowl after the engine rope into the notch in the flywheel and has been started. wind the rope around the flywheel sev- Do not pull starter rope if any bystander eral turns clockwise.

  • Page 41: Warming Up The Engine

    ENGINE OPERATION 7. Set the control lever in the Neutral position. 8. Pull the starter handle slowly until you feel engagement, keep pulling till you feel less resistance. Then pull it quickly. After engine starts, do not reinstall fly- wheel cover and top cowl. ENOM00518-0 If the choke solenoid fails to ENOF00529-0...

  • Page 42: Forward, Reverse, And Acceleration

    ENGINE OPERATION ENOM00044-0 ENOW00042-0 Engine speeds WARNING Idling speed after warming up. Remark: In case of cold engine starting, Do not shift into Reverse during planing, or control will be lost leading to serious idling speed is increased about 400 min personal injury, boat may swamp, and/or (rpm) for several minutes.
  • Page 43 ENGINE OPERATION 2. When the engine reaches trolling (or ENOW00864-0 idling) speed, quickly pull the shift lever CAUTION to the Reverse position. Do not increase engine speed unnecessar- Acceleration ily when the shift is in neutral and reverse, ENOW00867-0 or engine damage may occur. WARNING Sudden acceleration and deceleration may ENOM00890-A...

  • Page 44: Stopping The Engine

    ENGINE OPERATION Acceleration ENOW00867-A CAUTION Sudden acceleration and deceleration may cause passenger(s) to be thrown over- board or falling down. Open throttle grip or control lever gradu- ally. ENOF00877-0 1. Forward (F) 2. Neutral (N) 3. Reverse (R) 4. Fully open (Forward) 5.
  • Page 45 ENGINE OPERATION ENOF01107-0 1. Throttle grip ENOF00881-0 2. Turn the main switch key to the OFF position or push the stop switch. ( Do 2. Put the shift lever in the Neutral posi- not forget to turn the key off). tion.

  • Page 46: Steering

    ENGINE OPERATION ENOF00891-0 ENOM00920-0 6. Steering ENOF00569-C ENOW00870-0 WARNING Sudden steering may cause passenger(s) to be thrown overboard or falling down. Tiller handle type Right turn Move the tiller handle to the left ENOF00884-0 Left turn 1. Stop switch 2. Stop switch lock Move the tiller handle to the right.

  • Page 47: Trim Angle

    ENGINE OPERATION ate the switch during cruising, or control of boat may be lost. The trim angle of the outboard motor can be adjusted to suit the transom angle of the hull, and load conditions. Choose an appropriate trim angle that will allow the anti-ventilation plate to run parallel to the water surface during operation.
  • Page 48 ENGINE OPERATION Trim angle adjustment (Manual tilt MF, EF type) The transom angle adjustment 1. Stop the engine. 2. Shift into neutral. 3. Raise the outboard motor to the tilt up position. 4. Change the thrust rod position as fol- ENOF00053-0 lowing picture.

  • Page 49: Tilt Up And Down

    ENGINE OPERATION 4. Change the trim lock pin position as 1. Trim lock pin 2. Higher following picture. 3. Lower 5. Reinstall the tilt lock pin securely. 6. Operate the Power Tilt switch and lower the outboard. ENOM00060-A 8. Tilt up and down ENOW00055-0 ENOF01425-0 WARNING...
  • Page 50 ENGINE OPERATION lever toward you to release the tilt-lock. ENON00921-0 Note Then lower the motor slowly. Before tilting the outboard motor up, after stopping the motor leave it in the running position for about a minute to allow water to drain from inside the engine.
  • Page 51 ENGINE OPERATION 2. Lift up the outboard motor slightly until it is in Release position, and then out- board motor tilted down. JNOF01403-1 1. Tilt up position JNOF01406-1 1. Tilt release position 3. Set the knob to Lock position, then secure the tilt locking.

  • Page 52: Shallow Water Operation

    ENGINE OPERATION board motor will tilt up when operated in reverse. ENOW00873-0 WARNING Before opening the manual relief valve, make sure nobody is under the outboard motor. If the outboard motor is in the tilted up position, it will tilt down suddenly if the manual relief valve is loosened in the "Man- ual"...
  • Page 53 ENGINE OPERATION ENOW00053-0 CAUTION While in shallow water drive position, do not operate the outboard motor in Reverse. Operate the outboard motor at slow speed and keep the cooling water intake sub- merged. ENOW00054-A CAUTION Do not overtilt outboard motor when driv- ing shallow water, or air may be sucked through water inlet, potentially leading to ENOF00549-0...
  • Page 54 ENGINE OPERATION 3. Gently lower the outboard. ENOF00551-1 1. Tilt release position ENOM00069-A Power Tilt type 1. Operate the Power Tilt switch and tilt the outboard motor up into desired shallow water running position. ENOF00343-A ENOF00067-0...

  • Page 55: Removing And Carrying The Outboard Motor

    REMOVING AND CARRYING THE OUTBOARD MOTOR Fuel leakage is a fire or explosion hazard, ENOM00070-C which can cause serious injury or death. 1. Removing the outboard motor ENOW00065-0 ENOW00064-0 WARNING CAUTION Close air vent screw of fuel tank before Engine may be hot immediately after oper- carrying or storing outboard motor and fuel ating and could cause burns if touched.

  • Page 56: Traillering

    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 ENOF01416-1 motor and fuel tank, or fuel may leak, ENON00021-A potentially catching fire.
  • Page 57 REMOVING AND CARRYING THE OUTBOARD MOTOR ENOF00073-A 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.

  • Page 58: Adjustment

    ADJUSTMENT ENOM00073-0 EENOM00074-A 1. Steering friction 2. Throttle grip friction Tiller handle type ENOW00074-B WARNING ENOW00074-B WARNING Do not overtighten the throttle adjustment screw or it could result in difficulty of Do not overtighten the steering friction movement resulting in the loss of control lever it could result in difficulty of move- causing an accident and could lead to ment resulting in the loss of control caus-...

  • Page 59: Trim Tab Adjustment

    ADJUSTMENT Side mount type the anti-ventilation plate. If the boat veers toward the left direct the trim tab towards A (left from rear of boat). If the boat veers toward the right direct the trim tab towards B (right from rear of boat).

  • Page 60: Inspection And Maintenance

    INSPECTION AND MAINTENANCE ENOM00077-0 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 main- tenance as suggested in the maintenance schedules that follow. ENOW00077-0 CAUTION Your personal safety and that of your passengers depends on how well you...

  • Page 61: Daily Inspection

    INSPECTION AND MAINTENANCE ENOM00551-0 1. Daily Inspection Perform the following checks before and ENOW00078-0 after use. WARNING Do not use outboard motor if any abnor- mality is found during pre-operation check or it could result in severe damage to the motor or severe personal injury.
  • Page 62 INSPECTION AND MAINTENANCE ENOM00081-A ENON00024-0 Oil level checking Note If the oil level is low, or too high, the life of The oil level should be checked when the the engine will be shortened significantly. engine is cold. 1. Stop the engine and set it in a vertical ENON00025-0 position.
  • Page 63 INSPECTION AND MAINTENANCE level, use fresh water to remove salt, chemicals or mud from exterior and cool- ing water passage after every cruising or before storing outboard motor for long time. Before flushing, remove the propeller and the forward thrust holder. ENOM00085-A Flushing attachment ENOW00922-0...
  • Page 64 If the fuse continues to blow, request an And be sure to remove the propeller, when authorized Tohatsu dealer to inspect the starting the engine in the test tank. (See page 71) outboard motor.
  • Page 65 INSPECTION AND MAINTENANCE 1. Stop the engine and disconnect the battery cable from the battery negative (-) terminal. 2. Remove the engine cover. 3. Remove the fuse box lid. 4. Remove the fuse and check it. If the fuse is blown, replace it with a fuse of the same specified rating.

  • Page 66: Periodic Inspection

    INSPECTION AND MAINTENANCE ENOM00555-0 2. Periodic Inspection It is important to inspect and maintain your outboard motor regularly. At each interval on the chart below, be sure to perform the indicated servicing. Maintenance intervals should be determined according to the number of hours or number of months, whichever comes first.
  • Page 67 INSPECTION AND MAINTENANCE ENON00030-0 Note Your outboard motor should receive careful, and complete inspection at 300 hours. This is the best time for major maintenance procedures to be carried out. ENOM00091-A ENOW00933-0 Engine oil replacement CAUTION ENOW00091-0 Engine oil mixed with dust or water will CAUTION dramatically shorten the life of the engine.
  • Page 68 INSPECTION AND MAINTENANCE ENON00028-A Note If a torque-wrench is not available when you are fitting a oil filter, a good estimate of the correct torque is 3/4 to 1 a turn past finger- tight. Have the oil filter adjusted to the cor- rect torque as soon as possible with a torque-wrench.
  • Page 69 INSPECTION AND MAINTENANCE If engine oil is contaminated with fuel, emitting strong fuel smell, consult dealer. Some oil dilution is normal if engine is idled or trolled for long periods, espe- cially in cooler water temperatures. ENOM00093-A Fuel filters and fuel tank cleaning ENOW00093-A WARNING ENOF00560-0...
  • Page 70 INSPECTION AND MAINTENANCE Be sure to lock outboard motor if it is ENOM00096-A Fuel filter (for fuel tank) tilted up, or accidental fall of outboard Water or dirt in the fuel tank will cause motor could lead to severe personal injury.

  • Page 71: Propeller Replacement

    INSPECTION AND MAINTENANCE fire prevention and environment protection regulations. ENON00032-0 Note If water in the oil, giving it a milky colored appearance. Contact your dealer. ENON00033-0 Note Use genuine gear oil or the recommended one (API GL-5: SAE #80 to #90). Required volume: approx.
  • Page 72 INSPECTION AND MAINTENANCE motor's performance, and cause engine 6. Tighten the propeller nut to specified trouble. torque, and align one of grooves to 1. Put a piece of wood block between propeller shaft hole. propeller blade and anti-ventilation Propeller nut torque: plate to hold propeller.
  • Page 73 INSPECTION AND MAINTENANCE 2. Remove the top cowl. the correct torque as soon as possible with a torque-wrench. 3. Remove the spark plug caps. 4. Remove the spark plugs by turning it counter-clockwise, using a 5/8" (16 mm) socket wrench and handle that is provided in tool bag.

  • Page 74: Anode Replacement

    INSPECTION AND MAINTENANCE ENOM00088-A Anode replacement A sacrificial anode protects the outboard motor from electrolytic corrosion. Anode is located on the gear case, cylinder etc.. When the anode is eroded more than 1/3 of origi- nal size, replace it. ENON00029-0 Notes Never grease or paint the anode.
  • Page 75 INSPECTION AND MAINTENANCE ENOM00089-B Recommended oil Power Tilt oil checking Use an automatic transmission fluid or ENOW00088-0 equivalent. WARNING Recommended oils are as shown below. ATF Dexron III Be sure that outboard motor is secured to transom or service stand, or acciden- Air purging from the Power Trim and tal drop or fall of outboard motor could lead to severe personal injury.
  • Page 76 INSPECTION AND MAINTENANCE ENOM00960-0 Grease point Apply water proof grease to the parts shown below. ENOF01429-0...

  • Page 77: 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 and carburetor (See page 79), WARNING and clean these parts. Keep in mind that if gasoline is kept in Be sure to disconnect fuel connector the carburetor for a long time, gum except when operating engine.

  • Page 78: Adding A Fuel Stabilizer

    INSPECTION AND MAINTENANCE 9. Stand the outboard motor up vertically in a dry place. ENOF01415-0 ENOM00950-0 Adding a fuel stabilizer When adding a fuel stabilizer additive (commercially available), first fill the fuel tank with fresh fuel. If the fuel tank is only partially filled, air in the tank can cause the fuel to deteriorate during storage.
  • Page 79 INSPECTION AND MAINTENANCE 8. Check the drained fuel for the pres- ENOM00970-0 Fuel system draining ence of water or other contaminants. If ENOW00028-A either is present, reassemble the out- WARNING board motor, refill the carburetor with fuel, and then drain the fuel again. For details on handling fuel, contact an Repeat this procedure until no water or authorized dealer.

  • Page 80: Pre-Season Check

    INSPECTION AND MAINTENANCE 5. Recharge the battery once a month to 9. Run the engine for 10 minutes at half prevent it from discharging and the throttle. The oil used for storage inside the engine will be circulated out to electrolyte from deteriorating.

  • Page 81: Cold Weather Precautions

    INSPECTION AND MAINTENANCE ENOM00106-A ENOM00120-0 6. Cold weather precautions 8. Auxiliary outboard motor operation If you moor your boat in cold weather at temperatures below 0°C (32°F), there is When the auxiliary outboard motor will not the danger of remained water freezing in be used, be sure to remove the stop the cooling water pump, which may dam- switch lock, shift into forward, and then tilt...

  • Page 82: Troubleshooting

    TROUBLESHOOTING ENOM00561-0 If you encounter a problem, consult the check list below to determine the cause and to take the proper action. An authorized dealer will always be happy to provide any assistance and information. Possible cause Empty fuel tank Incorrect connection of fuel system Air entering fuel line Deformed or damaged fuel hose...
  • Page 83 TROUBLESHOOTING Possible cause Low compression Carbon deposits in the combustion chamber Incorrect valve clearance Low oil pressure/level Low oil level Use of improper oil Oil deterioration Clogged oil strainer Faulty oil pump Incorrect adjustment of throttle link Insufficient cooling water flow, clogged or defec- tive pump Faulty thermostat Cavitation or ventilation...
  • Page 84 ACCESSORIES KIT ENOM00562-1 The following a list of the tools and spare parts provided with the motor. Items Quantity Remark Tool bag Pliers Socket wrench 10 × 13 mm Service tools Socket wrench 16 mm (spark plug) Socket wrench handle Screwdrivers Cross-and straight-point Screwdriver handle...

  • Page 85: Propeller Table

    PROPELLER TABLE ENOM00111-0 Use a genuine propeller. A propeller must be selected so that the engine rpm measured at wide open throttle while cruising is within the recommended range. 5000–6000 min (rpm) Propeller Size (Diameter × pitch) Propeller Mark No. of Blades Light boats 8.9 ×...
  • Page 86 OWNER’S MANUAL MFS 6BZ MFS 8B MFS 9.8B 003-11113-2AF1 1604NB Printed in Japan...

This manual is also suitable for:

Mfs 8bMfs 9.8b

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