Inspection

Checkfollowingitemsforanydamageorclogging.

*0-ring*Fuelinjectorfilter

~Throttleshaftbushingandseal*Injectorcushionseal

*Throttlevalve*Injectordustseal

•Secondarythrottlevalve*Vacuumhose

THROTTLEBODYREASSEMBLY

Reassemblethethrottlebodyinthereverseorderofdisassem•

bly.

Payattensiontothefollowingpoints:

•InstalltheSTVAmotoryokeG)alongwiththeSTVAmotor(2).

(!JSTVAmotoryokemountingbolt:3.5N·m

(0.35kgf·m,2.5lb-ft)

•Alignthegroove@onthesecondarythrottleshaftendwiththelib@oftheSTPsensor.

NOTE:

Applygrease''.4"tothegroove®ifnecessary.

(!)STVAmotorcovernut:2.0N·m(0.2kgf·m,1.5lb-ft)

NOTE:

IftheSTPsensoradjustmentisnecessary,refertopage4-71forSTPsensorsettingprocedure.

•Alignthegroove©onthethrottleshaftendwiththelib©oftheTPsensor.

1Root109930-11960:Torxwrench

NOTE:

Applygrease''.4"tothegroove©ifnecessary.TPsensorsettingprocedurec::::?4-28.

•PositiontheTVcontrolleverG)betweentheTVsynchronizingscrew(2)andspring@asshown.

•SeteachTVtothesameopeningbyturningthebalancescrews

'.2).

•PositiontheSTVcontrollever@betweentheSTVsynchro•

nizingscrew@andspring@asshown.

•Placethethrottlebodyassemblyonthesurfaceplateandtightentheconnectingbolts.

(!JThrottlebodyconnectingbolt:5N·m

(0.5kgf.m,3.7lb-ft)

•Applythincoatoftheengineoiltothenewfuelinjectorcush•

ionsealsG),andinstallthemtoeachfuelinjector.

'ACAUTIONI

Replacethecushionsealwithanewone.

•Installtheseals(2)and0-rings^1:IDtoeachfuelinjector.

•Applythincoatoftheengineoiltothenew0-rings~.

•Installthefuelinjectorsbypushingthemstraighttoeachthrottlebody.

IACAUTIONI

Replacethedustsealand0-ringwiththenewones.Neverturntheinjectorwhilepushingit.

•Installthefueldeliverypipeassemblytothethrottlebodyas•

sembly.

IACAUTIONI

Neverturnthefuelinjectorswhileinstallingthem.

•Tightenthefueldeliverypipemountingscrews.

(!JFueldeliverypipemountingscrew:5N·m

(0.5kgf·m,3.7lb-ft)

•Connectthefuelinjectorcouplerstoeachfuelinjector.WIRECOLOR

^{No.1coupler:Gray,W/BI}

No.2coupler:Gray,BlackNo.3coupler:Gray,YellowNo.4coupler:Gray,Green

•WiththeSTVfullyopenedandusingaproperscale,settheNo.4andNo.3STvalvestothesameopeningbyturningthebalancescrew(J).

_t

^{STVAcouplerClamp}

TPScoupler

STPScoupler

_IATScoupler

THROTTLEBODYINSTALLATION

Installationisinthereverseorderofremoval.Payattentiontothefollowingpoints:

•ConnectthethrottlepullingcableG)andthrottlereturningcable

~tothethrottlecabledrum.

•Adjustthethrottlecableplaywiththecableadjusters<~and

A).

Refertopage4-76fordetails.

•Connectthefastidlecable(~andadjustthefastidlecableplaywiththecableadjuster@.

STPSENSORADJUSTMENT

IftheSTPsensoradjustmentisnecessary,measurethesensorresistanceandadjusttheSTPsensorpositioningasfollows:

•DisconnecttheSTPsensorcoupler.

•SettheSTvalvetofullyclosepositionbyfingerandmeasuretheresistancebetweenyellowandblackwires.

~STPsensorsettingresistance

STvalveisfullyclosed:Approx.0.8kn

(©Yellow-8Black)

ITMI09900-25008:Multicircuittester

-~Testerknobindication:Resistance(Q)

•LoosentheSTPsensormountingscrews.

•AdjusttheSTPsensoruntilresistanceiswithinspecificationandtightentheSTPsensormountingscrews.

1T'ii<it109930-11960:Torxwrench

(!JSTPsensormountingscrew:2.0N·m

(0.2kgf·m,1.5lb-ft)

Ifthemeasuredresistanceisnotwithinspecification,adjustthe

STVadjusterCDasfollows:

•Underabovecondition,loosenthelock~andturninorouttheSTVadjusterCDuntiltheresistancebecomesspecified

value.

Ifthemeasuredresistanceisnotobtain,replacetheSTPsen•sorwithanewone,andadjusttheSTPsensorpositioningagain.

(!JSTVadjusterlocknut:1.0N·m(0.1kgf·m,0.73lb-ft)

NOTE:

AfteradjustingtheSTVadjuster,applyTHREADLOCK''1342"tothelocknut(2).

_{THROTTLEBODYCLAMPPOSITION}

_Forward

0

_lR

---~-+~

II

_I

10·

ToIAPsensor

VIEWOFTOP

4·72FlSYSTEMANDINTAKEAIRSYSTEM_-

FUELINJECTORINSPECTION

Thefuelinjectorcanbecheckedwithoutremovingitfromthethrottlebody.

^{Refertopage4-50fordetails.}_-

^{FUELINJECTORREMOVAL}

•Liftandsupportthefueltankwithitspropstay.(c::T'4-52)

•Removetheaircleanerbox.(c:::::r4-62)

•Withbatterynegativecabledisconnected,disconnectthein•

jectorcouplers.

•Removethefueldeliverypipeassembly.(c::T'4-64)

•RemovethefuelinjectorsNo.1,No.2,No.3andNo.4.(c:::::r4-64)