Anybody using msd in old formula , wiring
#1
Anybody using msd in old formula , wiring
Currently have msd distributor and 6al box but tach doesn't work . I have 2 purple wires and 1 grey on the motor was wondering if I should have 2 grey wires ? Have the red wire on the box hooked to the purples and the grey wire on the box to the grey on the motor . Tach itself may be bad just looking for ideas thanks
#2
Normally there are 2 wires on the (-) of the coil, one to the tach and one to the thunder bolt ignition module. I don't know how your setup now, but the wire from the tach needs to be on the negative of the coil.
#10
Registered
I don't really know. I'm no expert. It has something to do with the trigger signal. I have had 2 boats where I installed complete MSD systems. Both boats I owned and ran before the installation. So, I knew the tach's worked before hand. My first boat after the install the tach's did not work. Installed the tach adapters and they were fine. My present boat the tach's worked after the install!