Here you go.... from the online parts finder for 2000 FLSTF Fat Boy:

 

Thanks Hattitude, Off on my search now....

 

Boy, that really got hot. Did you take the switch apart to inspect its contacts too? I would, you already have it right there. I would bet it needs some love too.

 

he ordered a new one. I'm guessing it looks no better than the connector and isn't salvageable.

 

It was late last night, so I haven't deconstructed the old one yet. I have it on the workbench now and will take it apart today.

 

That was some extreme heat.... looks to even have caused some damage to the insulation in the wires leading to the connector...

I would suspect that since you didn't trip a fuse, you were within the current capabilities of the circuit, but you had corrosion at the most melted connector contact. That corrosion caused the heat build up..

It will be interesting to see what you find in that switch...


An example of that kind of heat build up.......
I had a 50 amp shore power cord on my boat... I was running two a/c units and other things. I was probably near the limit of the circuits, but not over.... It was the hot time of the summer, and those A/C units were running for days... Unknown to me, some corrosion had formed on one of the plug contacts, where the cord plugged into the shore power receptacle. I was walking by the shore power pedestal when I heard a crackling noise..... I looked down just in time to see a large flame shoot out from the plug receptacle, and then all power went out... Startled the hell out of me... The end of my shore power cord looked a lot like your connector... All due to heat built up from resistance... I installed a new socket in the pedestal, and got a new shore power cord. For the next 10 years or so, with the same electrical use patterns, no further problems... I did periodically check those plugs for corrosion!

 

Corrosion got it. The terminal is melted into the plastic and the metal slide piece inside that moves and connects the terminal was worn down to the brass or copper it was made with.




I can't remember the last time I checked and lubed that connection, but it is on my check list every time I have the speedo off going forward.
I have a new switch and plug coming Monday. I will check the insulation on the wire, I think it just got real hot at the connection.
I think the wire will be fine.

 

How often do you have speedo off? Lubing can create dirt. It's an old bike. Put a new one in, worry about it in 20 years.

I doubt lube would help. It might have gotten loose, causing it to get hot. Last year replaced my 01. Just got sloppy.

I went with drag for $50. Dealer was $150, and the one there wouldn't match key. I did not want to wait for one with matching key.

Some people say they open and clean. Mine 85k Mike's I chAlked to wear

I have mine in tywraps harness cause it came loose and didn't start almost 20 years ago