I bought the TFI wiring harness for this Mallory ignition box but i can’t seem to figure out how to wire it to tachometer "yellow wire", I’ve been looking in a Haynes manual for 2 hours can seem to figure it out......
1993, i was going off of the instructions that came with the mallory box...i was doing a lot of research today and some people are saying one of the wires going into the coil is the tachometer wire or serves the same purpose.
What are each of your sources for the given wires? Did you do the prestart checklist and troubleshooting checklist in the instructions? We don't know anything about your set-up or installation to be able to offer any advice.