oldNslow wrote on 03/26/21 at 07:46:46:According to the link you posted that tach is made for a Harley and the green wire is supposed to be connected to the VSS (vehicle speed sensor) not the coil. Harleys have a sensor plugged into the transmission that reads the speed of the transmission output shaft in order to drive the speedometer.
That tach may not work on a Savage..
This is the same Tach that I ordered, works perfectly fine on my bike.
I would assume that the tach they received is faulty
and I would return it to the seller.
Sorry, didn't finish reading the rest of the posts
Green is not for the ground, the black wire is for ground, green is supposed to go to the negative terminal on the coil according to the diagram that comes with the tach.