Thought it might be worth resurrectin' this for one more post. A buddy with a Sportster has informed me that the optional tach he just bought for his bike doesn't run off the coils or ignition circuit at all. It gets its signals from a serial data link in the harness that also runs some of the other instrumentation and whatnot. Sooooo... if ya wanna use a tach for a HD on yur Trumpet, it might be smart to confirm its functionality before plunkin' down the green.
'08 America Blue/White; Custom Headlamps, Custom Lowers, Clearview 20", Bafflectomy
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