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techtalk:evo:elec03 [2019/08/02 04:42]
ixl2relax [Single-fire Ignition To Dual-fire Tachometer Adapter]
techtalk:evo:elec03 [2019/08/02 04:43] (current)
ixl2relax [Single-fire Ignition To Dual-fire Tachometer Adapter]
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 If you are **NOT** using the OEM Digital Speedometer on your 04+ Sportster, and still want to implement a dual-fire tachometer, you will need an adapter to combine the firing signals from both coils into a single signal to the tach. You can buy such an adapter or make your own:​((http://​xlforum.net/​forums/​showthread.php?​t=1255454)) If you are **NOT** using the OEM Digital Speedometer on your 04+ Sportster, and still want to implement a dual-fire tachometer, you will need an adapter to combine the firing signals from both coils into a single signal to the tach. You can buy such an adapter or make your own:​((http://​xlforum.net/​forums/​showthread.php?​t=1255454))
  
-|  \\  **NOTE:​** ​ |  Connect to the INPUT side of the Coil - The Primary Trigger connections.\\ __**DO NOT USE THE HIGH-VOLTAGE SPARK PLUG WIRES!**__\\ Be sure you have the diode orientation as shown in the diagram.\\ You can also use 1N4002/3/for diodes if they are more available. ​ |+|  \\  **NOTE:​** ​ |  Connect to the INPUT side of the Coil - The Primary Trigger connections.\\ __**DO NOT USE THE HIGH-VOLTAGE SPARK PLUG WIRES!**__\\ Be sure you have the diode orientation as shown in the diagram.\\ You can use 1N4004/3/for diodes if they are more available. ​ |
  
 {{techtalk:​evo:​elec:​sfignition-dftach-adapter.jpg|}}((Illustration created by IXL2Relax at the XLForum)) {{techtalk:​evo:​elec:​sfignition-dftach-adapter.jpg|}}((Illustration created by IXL2Relax at the XLForum))