TACH ADAPTER surfaces

INSTALLATION INSTRUCTIONS forTACH ADAPTERPart Number 8-2050CAUTION: READ INSTRUCTIONS CAREFULLY BEFORE STARTING INSTALLATIONOVERVIEWCrane Tach Adapter part number 8-2050 is intendedfor use with electronic tachometers that do not functioncorrectly after installation of a Crane ignition system.HI-2 (P/N 8-2000) SINGLE FIREMOTORCYCLE IGNITIONElectric tachs will read one-half true engine speedwhen a Crane HI-2 is installed. The 8-2050 tach adapter isrequired for all HI-2 applications with an electric tach.1. First, try the hookup shown in Figure 1 for a groundsensing tach. If the tach works properly, skip aheadto step 3. If the tach needle does not move asengine speed changes, or if the needle jumpserratically, re-check your connections.2. If the tach does not function properly, re-wire theadapter for a pulse-sensing tachometer as shownin Figure 2. If the tach still fails to function, it maybe defective.3. Use the supplied tie wrap to secure the tachadapter away from hot engine or exhaust pipe surfaces.Use electrical tape to secure the unusedwire (gray or short black).HI-4 (P/N 8-2100 AND 8-2200) SINGLEFIRE MOTORCYCLE IGNITIONSThe Crane HI-4 system has a tach output (brown wire)that is compatible with most electric tachs. Some tachsrequire a high voltage trigger pulse. If the tach does notfunction when connected to the brown wire from the HI-4,the 8-2050 tach adapter is required.1. Use the hookup shown in Figure 2 for a pulsesensing tach. If the tach needle does not move asengine speed changes, or if the needle jumpserratically, re-check your connections. If the tachstill fails to function correctly, it may be defective.2. Use the supplied tie wrap to secure the tachadapter away from hot engine or exhaust pipeFigure 1.Tach Adapter Hookup for Ground Sensing Motorcycle TachCRANE 8-3001SINGLE FIRE COIL+12V FROMIGNITIONSWITCHWHITE WIRE FROMCRANE TACH ADAPTERBLUE WIREFROMCRANE TACHADAPTERCRANETACHADAPTERLONG BLACK WIREFROM CRANETACH ADAPTERSHORT BLACKWIRE FROM CRANETACH ADAPTERFCAUTION:SHORT AND LONG BLACK WIRESCANNOT BE INTERCHANGED!F MGRAY WIRE FROMCRANE TACH ADAPTERLEAVE UNCONNECTEDAND TAPE UPWIRE FROMTACHRPMX100COIL-WIRE FROMSINGLE-FIREIGNITIONCOIL-WIRE FROMSINGLE-FIREIGNITION530 Fentress Boulevard, Daytona Beach, FL 32114Tech Line: (386) 258-6174 Fax: (386) 258-6167Check our web site for updates: www.cranecams.com4/200019000-1005B REV A

surfaces. Use electrical tape to secure the unusedshort black wire.AUTOMOTIVE IGNITION SYSTEMSSome tachometers may operate erratically when aCrane inductive ignition, such as the XR700, is installed.This problem is most common on older vehicles originallyequipped with points type ignition. If the tach does notfunction correctly, the 8-2050 tach adapter may help.1. Use the hookup shown in Figure 3. If the tach needledoes not move as engine speed changes, or ifthe needle jumps erratically, re-check your connections.If the tach still fails to function correctly, youmay need to replace it with an aftermarket unit.2. Use the supplied tie wrap to secure the tachadapter away from hot underhood areas. Use electricaltape to secure the white and gray wires.Figure 2.CRANE 8-3001SINGLE FIRE COIL+12V FROMIGNITIONSWITCHTach Adapter Hookup for Pulse Sensing Motorcycle TachWHITE WIRE FROMCRANE TACH ADAPTERBLUE WIREFROMCRANE TACHADAPTERFRAMEGROUNDCRANETACHADAPTERLONG BLACK WIREFROM CRANETACH ADAPTERSHORT BLACK WIRE FROMCRANE TACH ADAPTERLEAVE UNCONNECTEDAND TAPE UPF MFGRAY WIREFROM CRANETACH ADAPTERWIRE FROMTACHCAUTION:SHORT AND LONGBLACK WIRESCANNOT BEINTERCHANGED!RPMX100COIL-WIRE FROMSINGLE-FIREIGNITIONCOIL-WIRE FROMSINGLE-FIREIGNITIONFigure 3.WHITE WIREFROM CRANETACH ADAPTERLEAVE UNCONNECTEDAND TAPE UPTach Adapter Hookup for Ground Sensing Automotive TachCRANETACHADAPTERSHORTBLACK WIREFROM CRANETACH ADAPTERCAUTION:SHORT AND LONG BLACK WIRESCANNOT BE INTERCHANGED!F MWIRE FROM TACHPREVIOUSLY CONNECTEDTO COIL-FBLUE WIREFROM CRANETACH ADAPTERCOILLONGBLACK WIREFROM CRANETACH ADAPTERGRAY WIRE FROMCRANE TACH ADAPTERLEAVE UNCONNECTEDAND TAPE UPRPMX100WARNING:The 8-2050 Tach Adapter mustnever be used with a CapacitiveDischarge (CD) ignition system.Damage to your ignition systemand tachometer will result.+12V FROMIGNITION SWITCHYELLOW COIL- WIREFROM CRANEIGNITION MODULE4/200029000-1005B REV A