Fuseable Link...2... 1975 Scamp

Hi Marla,

From the wiring diagrams on mymopar.com it looks like your 75 has two fusible links one for lighting circuits and the other big main link for everything else. You want to check and possibly replace the main link which is the one you have circled in your photo. This link is between the battery terminal on the starter relay and one of the bulk head connector pins.
This is where you want the 50 amp fuse. The lighting circuit one where you have the fuse now can go down to a 20 amp fuse.

Good luck and let us know what you find.