Yamaha F75B Owner'S Manual Download Page 68

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Maintenance

Fuel line(High pres-
sure)

Inspection

Fuel line(High pres-
sure)

Inspection or replace-
ment as necessary

Fuel line(Low pres-
sure)

Inspection

Fuel line(Low pres-
sure)

Inspection or replace-
ment as necessary

Fuel pump

Inspection or replace-
ment as necessary

Fuel/oil leakage

Inspection

Gear oil

Replacement

Greasing points

Greasing

Impeller/water pump
housing

Inspection or replace-
ment as necessary

Impeller/water pump
housing

Replacement

Power trim & tilt unit

Inspection

Propeller/Propeller
nut/Cotter pin

Inspection or replace-
ment as necessary

PCV (Pressure Con-
trol Valve)

Inspection or replace-
ment as necessary

Shift link/shift cable

Inspection, adjustment
or replacement as nec-
essary

Spark plug(s)

Inspection or replace-
ment as necessary

Spark plug caps/high
tension cords

Inspection or replace-
ment as necessary

Water from the cooling
water pilot hole

Inspection

Throttle link/Throttle
cable/Throttle pick-up
timing

Inspection, adjustment
or replacement as nec-
essary

Thermostat

Inspection or replace-
ment as necessary

Timing belt

Inspection or replace-
ment as necessary

Valve clearance

Inspection and adjust-
ment

Water inlet

Inspection

Item

Actions

Initial

Every

20 hours

(3 months)

100 hours

(1 year)

300 hours

(3 years)

500 hours

(5 years)

U6D625E0.book Page 62 Thursday, March 13, 2008 9:06 AM

Summary of Contents for F75B

Page 1: ...Read this manual carefully before operating this outboard motor OWNER S MANUAL F75B F80B F90B F100D 6D6 28199 25 E0 U6D625E0 book Page 1 Thursday March 13 2008 9 06 AM...

Page 2: ...arefully before operating this outboard motor Keep this manual onboard in a waterproof bag when boating This manual should stay with the outboard motor if it is sold U6D625E0 book Page 1 Thursday Marc...

Page 3: ...between your machine and this manual If there is any question concerning this manual please con sult your Yamaha dealer To ensure long product life Yamaha recom mends that you use the product and perf...

Page 4: ...unting battery 11 Propeller selection 11 Start in gear protection 12 Engine oil requirements 12 Fuel requirements 13 Gasoline 13 Muddy or acidic water 13 Anti fouling paint 13 Motor disposal requireme...

Page 5: ...l engine oil 37 Breaking in engine 37 Getting to know your boat 37 Checks before starting engine 37 Fuel level 38 Remove cowling 38 Fuel system 38 Controls 39 Engine shut off cord lanyard 39 Engine oi...

Page 6: ...7 Removing propeller 68 Installing propeller 68 Changing gear oil 69 Cleaning fuel tank 70 Inspecting and replacing anode s 71 Checking battery for electric start models 71 Connecting the battery 72 D...

Page 7: ...ll times Be sure no one is in this area before operating the power trim and tilt mech anism The power trim and tilt switches operate even when the main switch is off Keep people be away from the switc...

Page 8: ...boating condi tions EMU33730 People in the water Always watch carefully for people in the wa ter such as swimmers skiers or divers whenever the engine is running When some one is in the water near th...

Page 9: ...re not sure that you can stop in time before hitting an obstacle apply throttle and turn in anoth er direction EMU33790 Weather Stay informed about the weather Check weather forecasts before boating A...

Page 10: ...n the illustration Record this number in the space provided for reference in case you need a new key EMU37290 EC Declaration of Conformity DoC This outboard motor conforms to certain por tions of the...

Page 11: ...label Engines affixed with this label conform to cer tain portion s of the Australian Radio Com munications Act 1 CE marking location 1 C Tick label location ZMU06040 1 ZMU04218 ZMU01697 U6D625E0 book...

Page 12: ...nuals supplied with the boat Read all labels on the outboard motor and the boat If you need any additional information contact your Yamaha dealer EMU33831 Warning labels If these labels are damaged or...

Page 13: ...ir and clothing away from rotating parts while the engine is running Do not touch or remove electrical parts when starting or during operation 3 WARNING EWM01671 Read Owner s Manuals and labels Wear a...

Page 14: ...ing Read Owner s Manual Hazard caused by continuous rotation Electrical hazard Remote control lever gear shift lever operat ing direction dual direction Engine start Engine cranking ZMU05696 ZMU05664...

Page 15: ...t X 664 mm 26 1 in Weight AL L 170 0 kg 375 lb Weight AL X 174 0 kg 384 lb Weight SUS L 172 0 kg 379 lb Weight SUS X 176 0 kg 388 lb Performance Full throttle operating range 5000 6000 r min Maximum o...

Page 16: ...lter 3 7 L 3 91 US qt 3 26 Imp qt Recommended gear oil Hypoid gear oil SAE 90 Gear oil quantity 0 670 L 0 708 US qt 0 590 Imp qt Tightening torque for engine Spark plug 25 0 Nm 2 55 kgf m 18 4 ft lb P...

Page 17: ...on Next to selecting an outboard choosing the right propeller is one of the most important purchasing decisions a boater can make The type size and design of your propeller have a direct impact on acc...

Page 18: ...mark 1 Propeller diameter in inches 2 Propeller pitch in inches 3 Type of propeller propeller mark ZMU04606 x 1 2 3 ZMU04607 x 1 2 3 1 Start in gear protection label Recommended engine oil 4 stroke mo...

Page 19: ...ontaining more than 10 ethanol can cause fuel system damage or cause en gine starting and running problems Yamaha does not recommend gasohol containing methanol because it can cause fuel system damage...

Page 20: ...an extra set of spark plugs Consult your Yamaha dealer for details EMU25221 Emission control information EMU25310 U S insular areas Engines affixed with the label pictured below conform to U S Environ...

Page 21: ...100D 1 Top cowling 2 Top cowling lock lever s 3 Anti cavitation plate 4 Trim tab anode 5 Propeller 6 Cooling water inlet 7 Clamp bracket 8 Flushing device 9 Water separator 10 Power trim and tilt swit...

Page 22: ...as a fuel storage container Com mercial users should conform to relevant licensing or approval authority regula tions EMU25830 Fuel joint This joint is used to connect the fuel line 1 3 2 ZMU05484 1 T...

Page 23: ...ear Pulling the lever back from neutral engages reverse The en gine will continue to run at idle until the lever is moved about 35 a detent can be felt Moving the lever farther opens the throttle and...

Page 24: ...e boat moves ahead Pushing the lever away from you puts the engine in reverse gear so that the boat moves astern EMU25941 Throttle grip The throttle grip is on the tiller handle Turn the grip counterc...

Page 25: ...engine shut off switch for the engine to run The cord should be attached to a secure place on the operator s clothing or arm or leg Should the operator fall overboard or leave the helm the cord will...

Page 26: ...e electrical circuits are off and the key can be removed on With the main switch in the on position the electrical circuits are on and the key can not be removed start With the main switch in the star...

Page 27: ...tilt switch on remote control or tiller handle The power trim and tilt system adjusts the out board motor angle in relation to the transom Pressing the switch up trims the out board motor up and then...

Page 28: ...ately 3000 r min For instructions on using the variable troll ing RPM switches see page 48 EMU26244 Trim tab with anode WARNING EWM00840 An improperly adjusted trim tab could cause difficult steering...

Page 29: ...al running position use an addi tional support device to secure it in the tilt position EMU26382 Top cowling lock lever pull up type To remove the engine top cowling pull up the lock lever s and lift...

Page 30: ...on Tachometer will activate Activation of alert device The water separator alert indicator of 6Y8 Multifunction Tachometer will blink The buzzer will sound intermittently only when the gear shift is i...

Page 31: ...light up For further information on reading the indicator see page 33 NOTICE ECM00052 Do not continue to run the engine if the overheat alert indicator is on Serious en gine damage will occur EMU3141...

Page 32: ...The display can also be turned on and off To change the display format press the mode button The display can show total hours or trip hours or turn off To reset the trip hours simultaneously press the...

Page 33: ...itch is turned on and will return to normal thereafter EMU36061 Speedometer The speedometer displays km h mph or knots according to operator preference Se lect the desired units of measurement by set...

Page 34: ...at has traveled since the gauge was last reset The trip distance is shown in kilometers or miles depending upon the unit of measure ment selected for the speedometer To reset the trip meter to zero pr...

Page 35: ...The indicator system is slightly different between the round and square types Check the model and type of your unit carefully This manual describes mainly the alert indicators For more details on set...

Page 36: ...zer sounds and the low oil pressure alert indicator blinks Check the engine oil quantity and re plenish oil if necessary If the alert device has activated while the appropriate engine oil quantity is...

Page 37: ...CE ECM00910 Gasoline mixed with water could cause damage to the engine EMU36160 Engine trouble alert This indicator will blink if the engine malfunc tions while cruising Get back to the port soon and...

Page 38: ...fuel management meter has the func tions of fuel flow meter total consumption dis play fuel economy display and remaining fuel display The chosen display is selected by using the set and mode buttons...

Page 39: ...rt indicator will light or blink The buzzer will sound if equipped on the tiller handle remote control box or main switch panel If the alert system has activated stop the en gine and check the cooling...

Page 40: ...system has activated stop the en gine as soon as it is safe to do so Check the oil level and add oil as needed If the oil level is correct and the alert device does not switch off consult your Yamaha...

Page 41: ...eight boat bottom The mounting height of your outboard motor affects its efficiency and reliability If it is mounted too high propeller ventilation may occur which will reduce propulsion due to ex ces...

Page 42: ...pth finder transducers can create air borne water spray while the boat is cruising If the motor is operated contin uously in the presence of airborne water spray enough water could enter the en gine t...

Page 43: ...lure to follow the break in procedure could result in reduced engine life or even severe engine damage Run the engine in the water under load in gear with a propeller installed as follows For ten hour...

Page 44: ...vapors are highly flam mable and explosive Keep away from sparks cigarettes flames or other sourc es of ignition WARNING EWM00910 Leaking fuel can result in fire or explosion Check for fuel leakage re...

Page 45: ...po sition Look for loose or damaged connections of the throttle and shift cables under the en gine cowling EMU36481 Engine shut off cord lanyard Inspect the engine shut off cord for damage such as cut...

Page 46: ...2 Be sure that the rubber seal is seated all the way around the engine 3 Place the cowling on top of the seal 4 Check to be sure the rubber seal fits cor rectly all the way around the engine 5 Move th...

Page 47: ...t the engine Refer to the battery manufacturer s instruc tions for checks for your particular battery EMU27436 Filling fuel WARNING EWM01830 Gasoline and its vapors are highly flam mable and explosive...

Page 48: ...air vent screw This product emits exhaust gases which contain carbon monoxide a colorless odorless gas which could cause brain damage or death when inhaled Symp toms include nausea dizziness and drows...

Page 49: ...e entangled preventing it from functioning Avoid accidentally pulling the cord dur ing normal operation Loss of engine power means the loss of most steering control Also without engine power the boat...

Page 50: ...start open the throttle slightly and try to start the en gine again If the engine still fails to start see page 73 EMU27627 Electric start and remote control models WARNING EWM01840 Failure to attache...

Page 51: ...not keep the start er motor turning for more than 5 seconds If the starter motor is turned continuously for more than 5 sec onds the battery will be quickly dis charged thus making it impossible to s...

Page 52: ...il if necessary Consult your Yamaha dealer if the cause for the low oil pressure alert in dicator cannot be found ECM01830 EMU36530 Checks after engine warm up EMU36540 Shifting While tightly moored a...

Page 53: ...e gear shift lever op erates only when the throttle grip is in the fully closed position To shift from in gear forward reverse to neu tral 1 Close the throttle so that the engine slows to idle speed 2...

Page 54: ...ing trolling speed The trolling speed on outboard motors equipped with the variable trolling RPM switches can be adjusted approximately 50 r min with each press of a switch To increase the trolling sp...

Page 55: ...rim up or trim down can cause boat instability and can make steer ing the boat more difficult This increases the possibility of an accident If the boat begins to feel unstable or is hard to steer slow...

Page 56: ...trim an gle can cause loss of control If equipped with a power trim and tilt switch located on the bottom cowling use the switch only when the boat is at a complete stop with the engine off Do not adj...

Page 57: ...more air drag Excessive trim out can also cause the propeller to ventilate which reduces perfor mance further and the boat may porpoise hop in the water which could throw the op erator and passengers...

Page 58: ...Otherwise fuel may leak NOTICE ECM00241 Before tilting the outboard motor stop the engine by following the procedure on page 48 Never tilt the outboard mo tor while the engine is running Severe damage...

Page 59: ...n For more detailed information see page 56 ECM01641 4 Models equipped with trim rods Once the outboard motor is supported with the tilt support lever press the power trim and tilt switch down to retr...

Page 60: ...rom overheat ing can result EMU32912 Procedure for power trim and tilt models 1 Place the remote control lever gear shift lever in neutral 2 Slightly tilt the outboard motor up to the desired position...

Page 61: ...he outboard motor with fresh water and if possible rinse the power head under the cowling Cruising in muddy turbid or acidic water Yamaha strongly recommends that you use the optional chromium plated...

Page 62: ...in the tilt posi tion using a motor support device such as a transom saver bar Consult your Yamaha dealer for further details EMU30041 Storing outboard motor When storing your Yamaha outboard motor f...

Page 63: ...ith salt sand or dirt In addition fog ging lubricating the engine is mandatory to prevent excessive engine damage due to rust Perform the flushing and fogging at the same time WARNING Do not touch or...

Page 64: ...f water that indicates a leaky seal Seal replacement should be performed by an authorized Yamaha dealer prior to use 3 Grease all grease fittings For further de tails see page 64 TIP For long term sto...

Page 65: ...e If necessary clean and paint the areas A touch up paint is available from your Yamaha dealer EMU2850A Periodic maintenance WARNING EWM01871 These procedures require mechanical skills tools and suppl...

Page 66: ...Operating continuously at or near maxi mum engine speed rpm for many hours Operating continuously at a low engine speed rpm for many hours Brief periods of rapid acceleration and de celeration followe...

Page 67: ...he symbol indicates the check ups which you may carry out yourself The symbol indicates work to be carried out by your Yamaha dealer Item Actions Initial Every 20 hours 3 months 100 hours 1 year 300 h...

Page 68: ...sary PCV Pressure Con trol Valve Inspection or replace ment as necessary Shift link shift cable Inspection adjustment or replacement as nec essary Spark plug s Inspection or replace ment as necessary...

Page 69: ...Wire harness connec tions Wire coupler con nections Inspection or replace ment as necessary Yamaha Meter gauge Inspection Yamaha Fuel tank Inspection and clean ing as necessary Item Actions Every 100...

Page 70: ...ce 64 EMU28941 Greasing Yamaha grease A water resistant grease Yamaha grease D corrosion resistant grease for propeller shaft F75B F80B F90B F100D ZMU04266 U6D625E0 book Page 64 Thursday March 13 2008...

Page 71: ...a spark plug be care ful not to damage the insulator A damaged insulator could allow exter nal sparks which could lead to explo sion or fire EWM00561 3 Be sure to use the specified spark plug otherwis...

Page 72: ...he level meets the speci fied capacity ECM01850 7 Leave the outboard motor for 5 10 min utes 8 Remove oil dipstick and wipe it clean 9 Insert the dipstick and remove it again Be sure to completely ins...

Page 73: ...112 Checking wiring and connectors Check that each grounding wire is properly secured Check that each connector is engaged se curely EMU32111 Checking propeller WARNING EWM01880 You could be seriously...

Page 74: ...urely Otherwise the pro peller could come off during operation and be lost 1 Apply Yamaha marine grease or a corro sion resistant grease to the propeller shaft 2 Install the spacer if equipped thrust...

Page 75: ...on the mag netic gear oil drain screw this can in dicate lower unit problem Consult your Yamaha dealer ECM01900 TIP If a magnetic gear oil drain screw is equipped remove all metal particles from the...

Page 76: ...emove the fuel tank from the boat be fore cleaning it Work only outdoors in an area with good ventilation Wipe up any spilled fuel immediately Reassemble the fuel tank carefully Im proper assembly can...

Page 77: ...to external an odes on equipped models Consult a Yamaha dealer for inspection and replacement of inter nal anodes attached to the power unit EMU29322 Checking battery for electric start models WARNIN...

Page 78: ...e the electrical parts 1 Make sure the main switch on applicable models is off before working on the battery 2 Connect the red battery cable to the POSITIVE terminal first Then con nect the black batt...

Page 79: ...hift lever in gear A Shift to neutral Engine will not start starter operates Q Is fuel tank empty A Fill tank with clean fresh fuel Q Is fuel contaminated or stale A Fill tank with clean fresh fuel Q...

Page 80: ...screw on fuel tank closed A Open air vent screw Q Is choke knob pulled out A Return to home position Q Is motor angle too high A Return to normal operating position Q Is carburetor clogged A Have serv...

Page 81: ...th recommended type Q Are weeds or other foreign matter tangled on gear housing A Remove foreign matter and clean lower unit Q Is fuel system obstructed A Check for pinched or kinked fuel line or oth...

Page 82: ...rd motor can be seriously dam aged by a collision while operating or trailering Damage could make the out board motor unsafe to operate If the outboard motor hits an object in the wa ter follow the pr...

Page 83: ...ill be fuel in the fuel filter Keep away from sparks cigarettes flames or other sources of ignition This procedure will allow some fuel to spill Catch fuel in a rag Wipe up any spilled fuel immediatel...

Page 84: ...lfunc tion could occur ECM01950 5 Unscrew the filter cup from the filter hous ing NOTICE Be careful not to twist the water detection switch lead when un screwing the filter cup ECM01960 6 Drain the wa...

Page 85: ...perate WARNING EWM01022 Use this procedure only in an emergen cy to return to the nearest port for re pairs When the emergency starter rope is used to start the engine the start in gear protection dev...

Page 86: ...Remove the top cowling 2 Lift up the rear of flywheel cover and pull it forward to remove it 3 Prepare the engine for starting For fur ther information see page 43 Be sure the engine is in neutral and...

Page 87: ...motor is submerged immedi ately take it to a Yamaha dealer Otherwise some corrosion may begin almost immediate ly NOTICE Do not attempt to run the out board motor until it has been completely inspect...

Page 88: ...YAMAHA MOTOR CO LTD Printed on recycled paper Printed in Japan March 2008 0 7 1 CR U6D625E0 book Page 1 Thursday March 13 2008 9 06 AM...

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