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TOHATSU M 6B, Owner'S Manual

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TOHATSU M 6B Owner'S Manual Download Page 59

INSPECTION AND MAINTENANCE

57

10

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

z

Never grease or paint the anode.

z

At each inspection re-tighten the anode attaching bolt. As it is likely to be subjected to electrolytic
corrosion.

ENOF02238-0

Summary of Contents for M 6B

Page 1: ...2...

Page 2: ......

Page 3: ...OB No 003 11029 EAF1 MANUAL OWNER S M 6B M 8B M 9 8B...

Page 4: ...ONS IN THIS MANUAL CAN RESULT IN SERIOUS 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 r...

Page 5: ...otor please follow the troubleshooting procedures listed at the end of this manual If the problem persists contact an authorized TOHATSU service shop or dealer Please always keep this manual together...

Page 6: ...e outboard motor s serial number indicated both on the bottom cowl and on the cylinder block The serial number will be needed when order ing parts and when making technical or warranty inquiries Seria...

Page 7: ...ion to such information to ensure safe operation of the outboard motor at all times ENOW00001 0 Failure to observe will result in severe personal injury or death and possibly property dam age ENOW0000...

Page 8: ......

Page 9: ...34 4 Forward reverse and acceleration 34 5 Stopping the engine 36 6 Steering 37 7 Trim angle 37 8 Tilt up and down 39 9 Shallow water operation 40 8 REMOVING AND CARRYING THE OUTBOARD MOTOR 42 1 Remo...

Page 10: ...11 TROUBLESHOOTING 63 12 TOOL KIT AND SPARE PARTS 65 13 PROPELLER TABLE 66...

Page 11: ...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...

Page 12: ...NY SOLID DEVICE RIGIDLY ATTACHED TO A BOAT OR GEAR HOUSING ENOM0008 A EMERGENCY STOP SWITCH The Emergency Stop Switch will stall the outboard motor when the stop switch lanyard is pulled off This stop...

Page 13: ...e operation Please comply with all instructions concerning lubrication and maintenance You should take the engine to an authorized dealer or service shop for periodic inspection at the prescribed inte...

Page 14: ...UL z Tiller Handle z z z z Remote Control z 1 z 1 z 1 z 1 Mnual tilt z z z z M 9 8 B E F L Model description Horse power Product generation Starter system Steering system Shaft length M X Two stroke...

Page 15: ...0 Trolling Speed in Forward Gear rpm 750 Idle Speed in Neutral Gear rpm 950 Number of Cylinder 2 Bore x Stroke mm in 50 x 43 1 97 x 1 69 Piston Displacement mL Cu in 169 10 3 Exhaust System Through hu...

Page 16: ...owl 4 Cooling Water Check Port 5 Tilt Stopper 6 Drive Shaft Housing 7 Water Plug 8 Anti Ventilation Plate 9 Anode Trim Tab 10 Propeller 11 Starter Handle 12 Shift Lever 13 Throttle Grip 14 Clamp Screw...

Page 17: ...Check Port 5 Tilt Stopper 6 Drive Shaft Housing 7 Water Plug 8 Anti Ventilation Plate 9 Anode Trim Tab 10 Propeller 11 Starter Handle 12 Shift Lever 13 Throttle Grip 14 Clamp Screw 15 Clamp Bracket 1...

Page 18: ...e control box Fuel tank 1 Control Lever 2 Neutral lock arm 3 Free throttle lever 4 Main switch 5 Stop switch 6 Stop switch lock 7 Stop switch lanyard 8 Fuel gauge 9 Air vent screw 10 Fuel tank cap 11...

Page 19: ...17 4 LABEL LOCATIONS ENOM00019 A Warning label locations 4 1 2 3 6 5 ENOF02206 0...

Page 20: ...stop switch 2 Warning regarding rotating object 3 Warning regarding high voltage 4 Warning label regarding engine stop switch 5 Warning regarding gasoline See page 24 6 Warning regarding gasoline See...

Page 21: ...e Model name 2 Rated power 3 Dry mass weight 4 Serial No 5 Manufacture name 6 Manufacture address Serial number label locations r e w o P d e t a R r o t o M d r a o b t u O o N l a i r e S s s a M n...

Page 22: ...d torque 30 Nm 3 0 kgf 13 ft lb Check the fasten ers for tightness from time to time z Be sure to use outboard mounting fas teners included in the outboard motor package or their equivalents in terms...

Page 23: ...owling during cruising Exposing the engine to such conditions for extended periods can lead to severe engine damage ENOM00830 A Mounting bolts Manual tilt type 1 To attach the outboard motor to the bo...

Page 24: ...17 7in longer than the measured distance Temporarily pull the cable along the intended cable route to check its length is sufficient Connect the remote control cable to the engine then run the cable t...

Page 25: ...If not the charging system will be damaged z Do not disconnect the battery leads from battery while the engine is operat ing the electrical parts could be dam aged z Always use a fully charged batter...

Page 26: ...the ethanol in the gasoline can absorb moisture from the air resulting in a separa tion of the water ethanol from the gasoline in the fuel tank These may cause increased z Corrosion of metal parts z D...

Page 27: ...When or before refueling z Be sure to remove the static electricity charged in your body before refueling z The sparks due to static electricity may cause explosion of flammable gasoline z Stop the e...

Page 28: ...oil Mix well by hand The mixing ratio during break in running is 25 1 Mixing Ratio ENOM01003 0 Engine oil gasoline mixing procedure ENOW00937 0 z Do not use other than two stroke engine oil with speci...

Page 29: ...nd even When fuel tank built in the boat is used for operation of outboard motor s 1 Prepare separate fuel container for pre mixing 2 Pour engine oil into fuel container and then gasoline 3 Put cap on...

Page 30: ...Always attempt to stay on the windward side of emission ENOW00023 0 Operating the outboard motor without break in can shorten service life of the product If any abnormality is experienced during the...

Page 31: ...p be sure to fol low the procedure described below Fuel could blast out through the fuel tank cap in case the cap is loosened by using another procedure when internal pressure of fuel tank is raised b...

Page 32: ...hen starting the engine in the test tank See page 54 1 Test tank 2 Water 3 Over 10 cm 4 in ENOW00036 0 Be sure to stop engine immediately if cool ing water check port is not discharging water and chec...

Page 33: ...perator or to the operator s PFD Personal Flo tation Device 1 Stop switch lock 2 Stop switch 2 Set the control lever in the Neutral position 1 Shift lever 3 Set the throttle grip to START position 1 T...

Page 34: ...tart engine return main switch to ON and crank engine again after 10 seconds or more 6 Return the choke knob fully after engine has started 7 Check the cooling water from cooling water check port 1 Co...

Page 35: ...rter rope into the notch in the flywheel and wind the rope around the flywheel sev eral turns clockwise 5 Tie a loop in the another end of the emergency starter rope and attach socket wrench that is i...

Page 36: ...eck port 2 Idle port ENOM00044 A Engine speeds Idling speed after warming up ENOM00046 A ENOW00037 0 Before shifting into forward or reverse make sure that boat is properly moored and outboard motor c...

Page 37: ...fore shifting is attempted ENOW00863 0 Idle speed may be higher during warming up of engine If shifted to Forward or Reverse during warming up it may be diffi cult to shift back to neutral In such cas...

Page 38: ...switch lanyard from engine accidentally while boat is running Sudden stop of engine can cause loss of steering control It can also cause loss of boat speed possi bly leading the crew s and or objects...

Page 39: ...se passenger s to be thrown overboard or falling down Tiller handle type Right turn Move the tiller handle to the left Left turn Move the tiller handle to the right ENOM00050 0 ENOW00043 A z Adjust th...

Page 40: ...ed 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 ENOM00052...

Page 41: ...racket and the stern bracket Be sure to tilt the outboard motor down slowly ENOW00056 A When tilting up outboard motor with fuel joint for over a few minutes be sure to dis connect fuel hose or fuel m...

Page 42: ...0 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 Do not overtilt o...

Page 43: ...OPERATION 41 7 Return to normal running position 2 Tilt the motor up fully and then return the motor down slowly to the normal running position 1 Tilt lever 2 Shallow water running position 1 2 ENOF0...

Page 44: ...or explosion hazard which can cause serious injury or death ENOW00065 0 Close air vent screw of fuel tank before carrying or storing outboard motor and fuel tank or fuel may leak potentially catching...

Page 45: ...f fuel tank and fuel cock before carrying or storing outboard motor and fuel tank or fuel may leak potentially catching fire ENOW00071 0 The tilt support device supplied on your outboard motor is not...

Page 46: ...ere injury Friction adjustment of the throttle grip can be made with the throttle adjustment screw 1 Throttle friction adjustment screw 2 Heavier 3 Lighter ENOM00076 0 ENOW00076 0 z Be sure that outbo...

Page 47: ...tion plate z If the boat veers toward the left direct the trim tab towards A left from rear of boat z If the boat veers toward the right direct the trim tab towards B right from rear of boat 1 Trim ta...

Page 48: ...and mainte nance procedures described in this sec tion z The maintenance intervals shown in the checklist apply to an outboard motor in normal use If you use your outboard motor under severe condition...

Page 49: ...ttle System Check that the choke solenoid and valve for the carburetor function normally Check if the carburetor and magneto work normally when turning the throttle grip and check links for looseness...

Page 50: ...passage after every cruising or before storing outboard motor for long time Before flushing remove the propeller and the forward thrust holder ENOM00085 D Flushing attachment ENOW00921 0 Do not operat...

Page 51: ...the test tank See page 54 1 Test tank 2 Water 3 Over 10 cm 4 in ENOM00950 0 Fuse replacement For electrical starter type ENOW00923 0 Before replacing a fuse disconnect the battery cable from the batte...

Page 52: ...INSPECTION AND MAINTENANCE 50 10 4 Remove the fuse and check it If the fuse is blown replace it with a fuse of the same specified rating 1 Blown fuse 1 ENOF02205 0...

Page 53: ...lean and adjust Adjust idling Fuel filter z z z Check and clean or Replace if necessary Piping z z z Check and Replace if necessary Fuel tank z z Clean Ignition Spark plugs z z Check gaps Remove carbo...

Page 54: ...osion z Check fuel system regularly for leakage z Contact authorized dealer for fuel sys tem services Services by unqualified person could lead to engine damage Water or dirt in the fuel filter and ta...

Page 55: ...tainer to your local service station for reclamation Do not throw it in the trash pour it on the ground or down a drain 1 Tilt down the outboard motor 2 Remove the oil plugs lower and upper and comple...

Page 56: ...engine could accidentally start lead ing to serious personal injury Discon nect battery cable if possible z The propeller edge is thin and sharp Wear the groves during replacement to protect your hand...

Page 57: ...tor to cool down first ENOW00929 0 Use only the recommended spark plugs Spark plugs which have an different heat range may cause engine damage If the spark plug s is fouled has carbon build up or is w...

Page 58: ...n the spark plug to the specified torque ENON00028 0 Note z Spark plug torque 25 0 Nm 18 ft lb 2 5 kgf m If a torque wrench is not available when you are fitting a spark plug a good estimate of the co...

Page 59: ...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 z Never grease or paint the anode z At each...

Page 60: ...INSPECTION AND MAINTENANCE 58 10 ENOM00960 0 Grease point Apply water proof grease to the parts shown below ENOF02239 0...

Page 61: ...roughly with fresh water Drain the water com pletely Wipe off any surface water with an oily rag 2 Remove the fuel hose from the out board motor 3 Drain all fuel from the fuel hoses fuel pump fuel fil...

Page 62: ...he label when adding the fuel stabilizer additive 3 After adding the additive let the out board motor run in the water for 10 minutes to make sure any old fuel in the fuel system has been completely r...

Page 63: ...s secure and the battery cables are properly installed 4 Fill the fuel tank with oil and fuel 5 Connect the fuel line to the engine and squeeze primer bulb 6 Before starting the engine disconnect stop...

Page 64: ...ained water freezing in the cooling water pump which may dam age the pump impeller etc To avoid this problem submerge the lower half of the outboard motor into the water ENOM00107 A ENOW00935 0 Striki...

Page 65: ...sed air vent on fuel tank z z z z z z z Clogged fuel filter fuel pump or carburetor z z z z z Use of improper engine oil z z z z z Use of improper gasoline z z z z z z Excessive oil in mixture z Short...

Page 66: ...z z z z Incorrect propeller selection z z z z z z Damaged and bent propeller z z z z Improper thrust rod position z z z z z Unbalanced load on boat z z z z z Transom too high or too low Engine failing...

Page 67: ...the motor in some markets Items Quantity Remark Servicing Tools Tool Bag Pliers Socket Wrench Socket Wrench Socket Wrench Handle Screwdriver Phillips type and flat head 1 1 1 1 1 1 10 x 13 mm 21 mm Ad...

Page 68: ...n throttle while cruising is within the recommended range Recommended range at WOT 6B 8B 4 500 to 5 500 rpm 9 8B 5 000 to 6 000 rpm Propeller Mark Propeller Size Diameter pitch No of Blades inch mm Li...

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Page 70: ...003 11029 EAF1 1512NB Printed in Japan M 6B M 8B M 9 8B OWNER S MANUAL...

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