Could someone please direct me to some instructions for unpinning this type of terminal? 1991 FLH Ign sensor.

 

I would just cut and reconnect with Butt connectors

 

Thanks but at the very least I would do a nice job, solder and shrink tube but there must be a procedure to do it right.

 

I've not done one of these but I think you need a tool like this: Sorry if they are enormously sized; first time adding photos.

 

If that connector is rubber, spray a little brake clean in the wires end and push it out with a pick in the sockets, you can push the pin out by catching the shoulder at the base of the pin with the pick.
Brake clean will make the rubber very slick, but only until it evaporates.

 

Yep, thats it ... Just push em out and push the new ones back in again. [I do have those electrical terminal tools-not needed this time]. I used dielectric grease - shoulda used the brakleen I think. Hard push even tho the rubber is still soft - one of the crimped terminals failed during the mayhem - had to solder it back on.
Took all afternoon for a simple job ... must be gettin' old ....but it runs ..... :-) and got rid of the melty old one.