12V bATTERY

(-) (+)

INSTALLATION INSTRUCTIONS

5" Tachometer2650-1244-00 Rev. B

QUESTIONS:If after completely reading these instructions you have questions regarding the operation or installation of your instrument(s),

please contact Auto Meter Technical Service at 866-248-6357.You may also email us at service@autometer.com.

Additional information can also be found at http://www.autometer.com/tech_faq.aspx

INTRODUCTION• AnyAutoMeterShift-Lite™,orQuick-Lite™Shift-Litecanbeusedwithtachsequippedwithablack,Shift-Liteconnector.

NOTE 1:Thistachometerhasanaircoremeter.Withpoweroff,itisnormalforthepointertoleavezero.When12Vpowerisapplied, thepointerwillmovetothecorrectposition.

NOTE 2: TachometerswithtwoorthreebuttonsuseanadvancedmicrocontrollercircuittomeasureengineRPMforincreasedaccuracyandzeropointerflutter atlowRPM.Whenusedon0.5,1,or1.5pulseperrevignitions,abriefpauseinpointermovementmaybeobservedasRPMisrapidlydecreased.

1. WIRING

Green

White

Red

DashLighting

Fuse

(See caution below)

or

Tach output onElectronic ignition

* See“Warning”below

IgnitionSwitch

Blue

Black Good EngineGround

12VBattery

ToShift-Lite(Optional)

WARNINGWarranty will be void if connected to coil when usingan aftermarket ignition box such as, but not limited toproductsfromthefollowingmanufacturers:MSD,Crane,Jacobs,Mallory,Holley,Etc..Priortoinstallationofyourtachometer,checkwiththeignitionboxmanufacturerforrecommended tachometer signal location.

WARNINGDo NoT USE THiS PRoDUCT WiTH SoLiD CoRESPARkPLUgWiRES.

* Seeautometer.com/tech_installation.aspxforspecific vehicle information.

*

CAUTION!!!AsasafetyprecautiontheREDwireofthisproductshouldbe fused before connecting it to the positive (+) side of switchedpowersource.Werecommendusinga4Amp,3Agfast-actingtypecartridgefuse(Littlefuse®#312004oranequivalent)inlinewiththeREDwireofourproductfor tachsthatuseaShift-Lite.For tachswithoutaShift-Litewerecommendusinga1Amp3Agfast-actingtypecartridgefuse(Littlefuse®#312001oranequivalent).

2nd 1st

SwitchClosedwhenshifterisin

1storLow(Only on 2-stage

S.L.Tachs)SwitchCustomerSupplied

Momentary

8 CYL. (4 Pulse) — NO adjustment is necessary.6 CYL. (3 Pulse) —ClipBRoWNwirelooponly. insulatewithelectricaltape.4 CYL. (2 Pulse) —ClipBLUEwirelooponly. insulatewithelectricaltape.4 CYL. (1 Pulse) —ClipBRoWNandBLUE wireloops.insulatewithelectricaltape.

Calibration

8 CYL. — NO adjustment is necessary.6 CYL. — ClipBRoWNwirelooponly. insulatewithelectricaltape.4 CYL. — ClipBRoWNandoRANgE wireloops.insulatewith electrical tape.

CLIP NECESSARYWIRE LOOPS. DO NOT PUSH WIRES INTO CASE.

WARNINGCheckwith engine builder formaximumrecommended safe shift point before setting shift point on tachometer. Failure to do this could lead to over-revving of engine, causing serious damage to engine and car.

CLIP NECESSARYWIRE LOOPS. DO NOT PUSH WIRES INTO CASE.

* If you are unsure of your vehicle’s pulse(s) per revolution or specific calibration requirements, contact Auto Meter Tech Support at (815) 899-0801 or go to http://hp.autometer.com/

techtips/ techtips.html for information.

(Units with orange &

brown loops)Calibration (Units with blue & brown loops)

Mounting (Shift-Lite model shown)

1)Loosenbothboltsholdingtheshockstraptothemountingfoot.Backbothboltsoutuntileachisonlyoneortwoturnsintothespacer.

2)Passtachwiresthroughshockstrapassemblyandslidetachcasingintoshockstrapassembly.

3)ForexternalShift-Litemodels,positionShift-Litemountingbracketundershockstrapasshowninimage.AdjustShift-Lite

(if applicable), tach, and mounting base to desired positions (see figure 4 forrecommendedshockstrapposition),andtightenboltsholdingmountingfoottoshockstraptosecuretheassembly.

4)Makesurerubbersectionofshockstrapseatsproperlytoensurea proper fit.Checktomakesureshockstrapisapproximately17⁄8" (1.875”)betweencenter line of strap and step of tachometer casing for best mounting. For externalShift-Litemodels,plugshiftlightintotachometerconnector.Plugisdirectional, do not force fit!

5)RecommendedplacementofexternalShift-Lite(ifapplicable)isat10o’clockposition.itispossibletoplaceShift-Liteinotherpositionsinaccordancewithdriverpreferenceandvehiclemountingrequirements.

6)Thespecialdesignofthetachometerbaseallowsforavarietyofmountingpossibilities.Attachthebaseusingscrewsprovidedoruseapoprivettool.

1) 2) 3)

6)4)

17⁄8"

Note: installationimagesshownmaybedifferentfromyouractualmodel.5)

The tachometer is configured at the factory for 4 PPR. To change the PPR on tachs with three buttons, follow the steps below:

1. Withnopowerappliedtothetach,pressandholdtheSETbutton. 2. Applypowertothetachbyturningtheignitionkeytothe“Accessory”or“on”position.Donotstarttheengine!Thepointerwillmovetoapositiononthedialwhichindicatesthedefaultconfigurationof4PPR.ReleasetheSETbutton. 3. Pressandreleasethe(erase)buttontoincreasethePPRsetting.Pressandreleasethe(recall)buttontodecreasethePPRsetting.SeethetablesbelowtofindthepointerreadingthatcorrespondstothedesiredPPRforyourtachometertype. 4. WhenthepointerindicatesthedesiredPPR,pressandreleasetheSETbuttontopermanentlystorethesettingsandexitConfigurationmode.

To change the PPR on tachs with two buttons, follow the steps below:

1. Withnopowerappliedtothetach,pressandholdtheyellowRECALLbutton. 2. Applypowertothetachbyturningtheignitionkeytothe“Accessory”or“on”position.Donotstarttheengine!ReleasetheRECALLbutton.Thepointerwillmovetoapositiononthedialwhichindicatesthedefaultconfigurationof4PPR. 3. PressandreleasetheredERASEbuttontochangethePPRsetting.Thiswillcausethepointertoindicate5PPR,then6PPR,thendownto0.5PPR,then1,1.5,2,2.5,3,andbackto4PPR.SeethetablebelowtofindthepointerreadingthatcorrespondstothedesiredPPR. 4. WhenthepointerindicatesthedesiredPPR,pressandreleasetheyellowRECALLbuttontopermanently storethesettingsandexitConfigurationmode.

FOR MODELS 6858, 6857, 6856, 3906 AND 6851:ENGINE Most 2 cyl. Most 4 cyl. Most 6 cyl. Most 8 cyl.

PPR 0.5 1 1.5 2 2.5 3 4 5 6DiALRPM 500 1000 1500 2000 2500 3000 4000 5000 6000

FOR MODELS 6809, 6811, 6854, 4499, 6852 and 5795ENGINE Most 2 cyl. Most 4 cyl. Most 6 cyl. Most 8 cyl. PPR 0.5 1 1.5 2 2.5 3 4 5 6DiALRPM 5000 5500 6000 6500 7000 7500 8000 8500 9000

FOR MODEL 6855:ENGINE Most 2 cyl. Most 4 cyl. Most 6 cyl. Most 8 cyl. PPR 0.5 1 1.5 2 2.5 3 4 5 6DiALRPM 7000 7500 8000 8500 9000 9500 10000 10500 11000

2. CALIbRATION (MODELS WITH NO CALIbRATION LOOPS)

IMPORTANT NOTEThis tach has an air core meter movement. The tach pointermay not always rest atzero. This is normal.When 12v poweris supplied, pointer will position to thecorrectRPM.

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FoRSERViCESENDTo:AUTO METER PRODUCTS, INC. 413W.ElmSt.,Sycamore,iL60178USA(866) 248-6357 Email us at service@autometer.com

2650-1244-00 Rev. B 3/30/09

SERVICEFor service send your product to Auto Meter Products,inc.inawellpackedshippingcarton.Pleaseincludeanoteexplainingwhattheproblemisalongwithyourphonenumber.ifyouaresendingproductbackforWarrantyadjustment,youmustincludeacopy(ororiginal)ofyoursalesreceiptfromtheplaceofpurchase.

© 2009AutoMeterProducts,inc.

12 MONTH LIMITED WARRANTYAutoMeterProducts,inc.warrantstotheconsumerthatallAutoMeterHighPerformanceproductswillbefreefromdefectsinmaterialandworkmanshipforaperiodoftwelve(12)monthsfromdateofthe originalpurchase.Productsthatfailwithinthis12monthwarrantyperiodwillberepairedorreplacedatAutoMeter’soptiontotheconsumer,whenitisdeterminedbyAutoMeterProducts,inc.thattheproductfailedduetodefectsinmaterialorworkmanship.ThiswarrantyislimitedtotherepairorreplacementofpartsintheAutoMeterinstruments.innoeventshallthiswarrantyexceedtheoriginalpurchasepriceoftheAutoMeterinstrumentsnorshallAutoMeterProducts,inc.beresponsibleforspecial,incidentalorconsequentialdamagesorcostsincurredduetothefailureofthisproduct.WarrantyclaimstoAutoMetermustbetransportationprepaidandaccompaniedwithdatedproofofpurchase.Thiswarrantyappliesonlytotheoriginalpurchaserofproductandisnon-transferable.All impliedwarrantiesshallbelimitedindurationtothesaid12monthwarrantyperiod.Breakingtheinstrumentseal,improperuseorinstallation,accident,waterdamage,abuse,unauthorizedrepairsoralterationsvoidsthiswarranty.AutoMeterProducts,inc.disclaimsanyliabilityforconsequentialdamagesduetobreachofanywrittenorimpliedwarrantyonallproductsmanufacturedbyAutoMeter.

Dial light: Forwedgebasebulbreplacement,orderAutoMeter3219orgE86bulb.Turnsocket1/8turncounter-clockwisetoremove.Usedonselectivemodelsonly.

Display button: Depressing red button activatespointertodisplayShift-SetRPMwhilesettingorverifyingshift-point.

1.Pushandholdredbutton.Pointerwilldisplaythetachometer’sshift-pointandtheShiftLitewillactivate.

2. To set your desired shift-point, continue depressing the red button, then push and turn the Shift-Set knobuntilthepointerreachesthedesiredRPM.

3. Todoublecheck,pushredsetbutton--pointerwillindicateyourshift-point.

4. During normal tachometer operation,theShift-litewillactivateattheexactsameRPMthatthepointerindicateswhenredsetbutton is depressed.

Shift-Lite:Forshift-Litebulbreplacement,removethreescrewsonlight.The bulb, located in the rear section, is easily removed by pushing and rotatingitcounter-clockwise.Replacewith#1076automotivebulb.

TACHOMETERTM

Model 3904Shown

Shift-Point Selection

Shift-Set: Depress theShift-Set knoband turn the knob until the pointerindicatesthedesiredshiftRPM. This is exactlywheretheShift-Litewillturnon.

Erase

Recall

Set

Installation Tips1.Mounttachbasefirmlytoreducevibration,wearandtear.2.Avoidcontactofthetachwithwindshieldorotherobjectsto maintainrubbershockabsorbingfeature.3.A12VpowersourceMUSTbeusedtopowerthistachometer. A12Vmotorcyclebatteryisagoodalternativeforcarswithoutbatteries. Abatterywithminimum5amphourratingisrecommended.4.Avoidconnectingtachpowerandignitionpowerleadstogether. Useseparatebatteryleadsforignitionandtachtoavoidexcessvoltagedrop.5.Whereverpossible,solderwireconnectionsandavoidcrimp-typeconnectors. Thiswillminimizelooseconnectionsthatcouldcauseproblemslater.6.Makesureyouhaveagoodgroundtoengineandbatterynegativeterminal.7.Wireinstallationsshouldbeneatandtieddowntopreventtugging andfrayingofwiresatconnections.

Trouble Shootingifyourtachdoesnotfunctionproperlyafterinstallationcheckthefollowing:1. Are all electrical connections correct and tight?2.ifneithertachnordiallightwork,checkgroundand12Vpowerconnections.3. Disregard tach readings that occur before engine is started. 4.ifproblemspersisttrytachonanothervehiclewiththesameignition.5. For changes in ignition type, contact a service representative from Auto Meter.6. Ignition manufacturers recommend that the ignition and coil be matched according to criteriawhichtheyestablish(oftenthattheignitionandcoilbeproductsofthesamecompany). iftheyaremismatched,minormalfunctionsmayoccur,showingaserraticreadingsonthetach. Mismatching coil and ignition types is often the cause of incorrect tach performance.

Model 3906Shown

Note: Formodel #3903with internal Shift-Lite, withkeyon, engineoff, pointerwill indicate shift set point.Toadjust turndial,whenpointer indicatesdesiredsetpoint,stop.Tachwillnowusesetpointuntilchanged

TheSuperBezelisaregisteredtrademarkofAutoMeterProducts,inc.

5. Memory Function (For Models with Memory) 3.1 Press“ERASE”buttonbeforeeachrace.Thisclearsthememoryfromyourpreviousrun.Youarenowreadytorecord. 3.2 Press“RECALL”buttontodisplayhighestRPMreached.Thiscanbedoneduringorafterarace. Memoryisretainedevenwhenpowertothetachometerisoff.

1. Two-Stage Shift-Lite Set Mode (For tachs with two shift-lite set points) 1.1Toenterthismode,applypowertothetachwiththeengineoff(noRPMsignaltothetach). 1.2PressandreleasetheSETbutton.Thepointermovesfrom0RPMto1kRPM. ThisistheindicatorfortheLowSetshiftpoint. 1.3PressandreleasetheSETbuttontoreviewand/orsettheLowSetshiftpoint.` 1.4Usingthe“erase”and“recall”buttons,movethepointertothedesiredRPMfortheLowSetshiftpoint. 1.5oncethepointerispositionedatthedesiredRPM,press&releasetheSETbuttontoexitlowsetmode. 1.6Pressandreleasethe“erase”button.Thepointermovesfrom1kRPMto2kRPM.Thisisthe indicator for High Set shift point. 1.7PressandreleasetheSETbuttontoreviewand/orsettheHighSetshiftpoint. 1.8Usingthe“erase”and“recall”buttons,movethepointertothedesiredRPMfortheHighSetshiftpoint. 1.9 OncethepointerispositionedatthedesiredRPM,press&releasetheSETbuttontoexitHighSetmode. 1.9 To store the settings you must push & release “recall” until pointer reaches zero. NOTE: If the Low Set shift point has been changed, the High Set shift point will also be changed to the same value.

2. Two-Stage Shift-Lite Application (For tachs with two shift-lite set points) 2.1Toaccomplishchangingtheshiftsetting,aBlueleadisbroughtoutofthetachometertoaswitchthatthe drivermaymanuallypush.(Seediagraminthewiringsection.) 2.2Whentheswitchisclosed(pushed),theBlueleadwillbeconnectedto12VPowerandtheLowSetmodewillbeineffect.Whentheswitchisopen(released),theHighSetmodewillbeineffect. 2.3Someracersmounttheswitchonthetransmissionorshiftersuchthatwheninfirstgeartheswitchisclosed,thusplacingtheminLowShiftsetmode.Whenshiftedoutof1st(Low),theswitchreturnstoopen and places the shift point in the High Set mode. NOTE: If you prefer to use only one shift point, do not connect the blue wire as shown in the diagram in the wiring section and only set the High Shift Point.