Originally Posted by 75RT
I just looked at a parts diagram for a 85 K100 and it shows the fuel pump connector the same as on my K75. On the right side under the side cover. Your picture looks like it is on the left side. Are you sure you have the right connector?
On my mc, the connector is on the left side of the tank towards the front.
I now have a replacement connector with unused female bullets. The early K100s used the same 4-pin connector for the alarm. That connector is in the relay box.
(The odd black line runs to a dashboard switch which turns on the fan. I wired that a few weeks ago. I now can turn on the fan whenever I want. I use it mostly to test the fan. In the past, I have had fans replaced because of freezing due to lack of use and corrosion. Now, I turn the fan on occasionally to keep that from happening. It is also great for stop-and-go and low speed situations.)
I removed some of the relays and the fuse holder to gain access. I cut out the connector capping each lead with an orange twist cap and taping the cap to the lead.
The original plan was to replace the old connector with this connector. I used a dremel to
cut off the old connector and expose the females. The hope was to remove the females from the new connector and put the old females in it. Unfortunately, I wasnt able to find a tool that would allow me to depress the catch on the females in the new connector and remove them.
The plan now is to cut off the old females bullets, strip the ends of the wires, strip the ends of the wires on the new connector and solder the wires together. I tested the unused connector for fit and it makes a tight connection with the fuel level sensor.
Now the issue is one of soldering skills.