Non Functioning Tachometer
 

Brand New FB owner, My Tach worked twice and I don't understand this system. I have asked many but No One knows the solution. I have a Mint 1985 1st Gen FB GSL.
The Tach worked for about 3 minutes the first time i saw it go up. I took it up to 7k and it BEEPED like is should. Can anyone share the issues with these. Ignitors and what wire where on the coil? I have read alot on here but non of it makes any sense to a rookie. Thanks in Advance for the help.
If there are any Pics that would be super helpful.

Welcome to the board. :)

You will want to check to see if the trailing coil and/or igniter are working.