Yamaha 90A Manual do Proprietário

F75F90OWNER’S MANUALLIT-18626-07-126D6-28199-13U.S.A.Edition

General information4● Know the marine laws and regulationswhere you will be boating—and obey them.For basic boating rules, see “Rules of theroad” on p

General information5EMU25500Basic boating rules (Rules of the road)Just as there are rules which apply when youare driving on streets and high ways, t

General information6area must yield to you (they are the Give-Wayvessels). Both you and the meeting vesselmust alter course to avoid each other.Meetin

General information7Fishing vessel right-of-wayAll vessels which are fishing with nets, lines ortrawls are considered to be “fishing vessels”under the

General information8EMU25540Fueling instructionsWARNINGEWM00010GASOLINE AND ITS VAPORS ARE HIGH-LY FLAMMABLE AND EXPLOSIVE!● Do not smoke when refueli

General information9● Take care not to spill gasoline. If gaso-line spills, wipe it up immediately withdry rags.● Do not overfill the fuel tank.● Tigh

General information10EMU25700Battery requirementCAUTION:ECM01060Do not use a battery that does not meet thespecified capacity. If a battery which does

General information11NOTE:Select a propeller which will allow the engineto reach the middle or upper half of the oper-ating range at full throttle wit

Basic components12EMU25799Main componentsNOTE:* May not be exactly as shown; also may not be included as standard equipment on all models.1. Top cowli

Basic components13EMU26180Remote controlThe remote control lever actuates both theshifter and the throttle. The electrical switchesare mounted on the

ZMU01690Read this owner’s manual carefully before operating your outboard motor.U6D613E0.book Page 1 Thursday, March 2, 2006 11:28 AM

Basic components14EMU26190Remote control leverMoving the lever forward from the neutral po-sition engages forward gear. Pulling the leverback from neu

Basic components15EMU25922Gear shift leverPulling the gear shift lever towards you putsthe engine in forward gear so that the boatmoves ahead. Pushing

Basic components16When constant speed is desired, tighten theadjuster to maintain the desired throttle set-ting.EMU25990Engine stop lanyard switchThe

Basic components17EMU26090Main switchThe main switch controls the ignition system;its operation is described below.● “” (off)With the main switch in t

Basic components18(down) tilts the outboard motor down andtrims it down. When the switch is released,the outboard motor will stop in its current po-si

Basic components19CAUTION:ECM00840The trim tab also serves as an anode toprotect the engine from electrochemicalcorrosion. Never paint the trim tab as

Basic components20EMU26460Flushing deviceThis device is used to clean the cooling waterpassages of the motor using a garden hoseand tap water.NOTE:For

Basic components21CAUTION:ECM00020● Do not continue to run the engine if thelow oil pressure warning indicator is onand the engine oil level is lower.

Basic components22NOTE:The speedometer displays km/h, mph, orknots, according to operator preference. Se-lect the desired unit of measurement by set-t

Basic components23EMU26690Trip meterThis gauge displays the distance the boat hastraveled since the gauge was last reset.Press the “” (mode) button re

Important manual informationEMU31280To the ownerThank you for choosing a Yamaha outboardmotor. This Owner’s Manual contains infor-mation needed for pr

Basic components24EMU26720Fuel warning indicatorIf the fuel level decreases to one segment, thefuel level warning segment will begin to blink.CAUTION:

Basic components25NOTE:The tachometer unit shows various kinds ofinformation according to the setting made us-ing the “” (set) and “” (mode) buttons.F

Basic components26Low oil pressure warningWhen the engine oil pressure drops too low,the low oil pressure warning indicator will startto blink, and th

Basic components27Water separator warningThis indicator will blink when water has accu-mulated in the water separator (fuel filter)while cruising. In

Basic components28EMU31610Speed & fuel meter unitThis unit shows the boat speed and has thefunctions of fuel meter, total fuel consumptiondisplay,

Basic components29NOTE:After the main switch is first turned on, all thedisplays come on as a test. After a few sec-onds, the gauge will change to nor

Basic components30EMU31630Fuel management meterThis meter has functions of fuel flow meter, to-tal consumption display, fuel economy dis-play, and rem

Basic components31If the warning system has activated, stop theengine and check the cooling water inlet forclogging.EMU26855Low oil pressure warningIf

Operation32EMU26901InstallationCAUTION:ECM00110Incorrect engine height or obstructions tosmooth water flow (such as the design orcondition of the boat

Operation33tends to occur, thus reducing the propulsion;and if the propeller tips cut the air, the enginespeed will rise abnormally and cause the en-g

Table of contentsGeneral information ... 1Identification numbers record... 1Outboard motor serial number ... 1

Operation34● Check fuel line connections to be sure theyare tight (if equipped Yamaha fuel tank orboat tank).● Be sure the fuel tank is positioned on

Operation351. Remove the fuel tank cap.2. Carefully fill the fuel tank.3. Securely close the cap after filling thetank. Wipe up any spilled fuel.EMU27

Operation36EMU27490Starting engineEMU27592Electric start / prime start models1. Place the gear shift lever in neutral.NOTE:The start-in-gear protectio

Operation375. Immediately after the engine starts, re-lease the main switch and allow it to re-turn to “” (on).CAUTION:ECM00191● Never turn the main s

Operation383. Turn the main switch to “” (on).NOTE:Dual engine users: When the main switch isturned on, the buzzer operates for a few sec-onds then st

Operation39sages. If water is not flowing out of thepilot hole at all times while the engine isrunning, overheating and serious dam-age could occur. S

Operation40EMU27785Reverse (automatic reverse lock and power trim and tilt models)WARNINGEWM00190When operating in reverse, go slowly. Donot open the

Operation41● If the trolling speed has been adjusted, theengine returns to the normal trolling speedwhen the engine is stopped and restartedor when th

Operation42the possibility of an accident. If the boatbegins to feel unstable or is hard to steer,slow down and/or readjust the trim angle.EMU27882Adj

Operation43To lower the bow (trim-in), press the switch“” (down).Make test runs with the trim set to different an-gles to find the position that works

Table of contentsStarting engine ... 36Warming up engine ... 38Electric start models...

Operation44WARNINGEWM00220Be sure all people are clear of the out-board motor when tilting up and down,also be careful not to pinch any body partsbetw

Operation454. Push the tilt support knob into the clampbracket or pull the tilt support lever towardyou to support the engine.WARNINGEWM00260After til

Operation46EMU28060Cruising in shallow waterThe outboard motor can be tilted up partiallyto allow operation in shallow water.EMU28090Power trim and ti

Operation473. To return the outboard motor to the nor-mal running position, press the powertrim and tilt switch / power tilt switch andslowly tilt the

Maintenance48EMU31480SpecificationsNOTE:“(AL)” stated in the specification data belowrepresents the numerical value for the alumi-num propeller instal

Maintenance49Gear oil quantity:670.0 cm³ (22.65 US oz) (23.63 Imp.oz)Tightening torque for engine:Spark plug:25.0 Nm (18.4 ft-lb) (2.55 kgf-m)Propelle

Maintenance50EMU28303ProcedureEMU30001Flushing with the flushing attachment1. Wash the outboard motor body usingfresh water. For further information,

Maintenance516. Run the engine at a fast idle for a fewminutes in neutral position while supply-ing fresh water.7. Just prior to turning off the engin

Maintenance52Batteries vary among manufacturers. There-fore the following procedures may not alwaysapply. Consult your battery manufacturer’s in-struc

Maintenance53instead of cooling the engine, which cancause serious overheating. Be sure theconnector is tightened securely on the fit-ting after flush

Table of contentsConsumer information... 75Important warranty information for U.S.A. and Canada ... 75YAMAHA MOTOR

Maintenance54EMU30563Maintenance chartNOTE:● Refer to the sections in this chapter for explanations of each owner-specific action.● The maintenance cy

Maintenance55EMU28874Maintenance chart (additional)EMU28910NOTE:When using lead or high-sulfur gasoline, inspecting valve clearance may be required mo

Maintenance56EMU28931GreasingYamaha marine grease (Water resistant grease)EMU28952Cleaning and adjusting spark plugWARNINGEWM00560When removing or ins

Maintenance57When fitting the plug, always clean the gasketsurface and use a new gasket. Wipe off anydirt from the threads and screw in the sparkplug

Maintenance58EMU29073Changing engine oilWARNINGEWM00760● Avoid draining the engine oil immediate-ly after stopping the engine. The oil ishot and shoul

Maintenance59tighten 1/4 to 1/2 turn more. Tighten the drainscrew to the correct torque with a torquewrench as soon as possible.4. Add the correct amo

Maintenance60EMU29120Exhaust leakageStart the engine and check that no exhaustleaks from the joints between the exhaustcover, cylinder head, and body

Maintenance61Checkpoints● Check each of the propeller blades forwear, erosion from cavitation or ventilation,or other damage.● Check the propeller sha

Maintenance62● Be sure to use a new cotter pin and bendthe ends over securely. Otherwise thepropeller could come off during opera-tion and be lost.1.

Maintenance63NOTE:For disposal of used oil, consult your Yamahadealer.5. With the outboard motor in a vertical po-sition, and using a flexible or pres

General information1EMU25170Identification numbers recordEMU25183Outboard motor serial numberThe outboard motor serial number is stampedon the label a

Maintenance64● Avoid bodily contact with electrolyticfluid as it can cause severe burns or per-manent eye injury.● Wear protective eye gear when handl

Maintenance65● Connect the red battery cable first wheninstalling the battery and disconnect theblack battery cable first when removingit. Otherwise,

Trouble Recovery66EMU29424TroubleshootingA problem in the fuel, compression, or ignitionsystems can cause poor starting, loss of pow-er, or other prob

Trouble Recovery67A. Check for pinched or kinked fuel line or oth-er obstructions in fuel system.Q. Is fuel contaminated or stale?A. Fill tank with cl

Trouble Recovery68Q. Is load on boat improperly distributed?A. Distribute load to place boat on an evenplane.Q. Is water pump or thermostat faulty?A.

Trouble Recovery69A. Connect correctly.Q. Is heat range of spark plug incorrect?A. Inspect spark plug and replace it with rec-ommended type.Q. Is high

Trouble Recovery70EMU29522Power trim and tilt / power tilt will not operateIf the engine cannot be tilted up or down withthe power trim and tilt / the

Trouble Recovery711. Stop the engine.2. Remove the top cowling.3. Remove the plastic tie.4. Disconnect the water detection switchcoupler.CAUTION:ECM01

Trouble Recovery72NOTE:Properly dispose of the rag.7. Firmly screw the filter cup onto the filterhousing.NOTE:Be careful not to twist the water detect

Trouble Recovery73● Make sure no one is standing behindyou when pulling the starter rope. Itcould whip behind you and injure some-one.● An unguarded,

General information2EMU25262Manufactured date labelThis label is attached to the clamp bracket orthe swivel bracket.EMU25272Star labelsYour outboard m

Trouble Recovery74EMU29760Treatment of submerged motorIf the outboard motor is submerged, immedi-ately take it to a Yamaha dealer. Otherwisesome corro

Consumer information75EMU29811Important warranty information for U.S.A. and CanadaU6D613E0.book Page 75 Thursday, March 2, 2006 11:28 AM

Consumer information76U6D613E0.book Page 76 Thursday, March 2, 2006 11:28 AM

Consumer information77EMU29830YAMAHA MOTOR CORPORATION, U.S.A. FOUR-STROKE OUTBOARD MOTOR THREE-YEAR LIMITED WARRANTYU6D613E0.book Page 77 Thursday,

Consumer information78U6D613E0.book Page 78 Thursday, March 2, 2006 11:28 AM

Consumer information79EMU29841IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE THE USA OR CANADAU6D613E0.book Page 79 Thursday, March 2

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March 2006–3.0 × 1 CRPrinted in JapanPrinted on recycled paperYAMAHA MOTOR CORPORATION, USA

YAMAHA MOTOR CO., LTD.MADE IN JAPANPAYS D'ORIGINE JAPONOUTBOARD MOTOR WARRANTY REGISTRATIONENREGISTREMENT DE LA GARANTIE DU MOTEUR HORS-BORDPleas

General information3EMU25300Three Stars—Ultra Low EmissionThe three-star label identifies engines thatmeet the Air Resources Board’s 2008 ex-haust emi

PLACEPOSTAGEHEREATTN: WARRANTY DEPARTMENTWarranty card 2/27/02 11:47 AM Page 2