There was a recall on fuse boxes back then, but I can't verify the particular model.
Manufacturer
AMERICAN HONDA MOTOR CO.
Manufactured between
1/1/1977 - 12/1/1978
Recalled on
1/14/1980
Influenced by
OFFICE OF DEFECTS INVESTIGATION
Owners Notified on
3/17/1980
# Affected
15,529
Recalled for
ELECTRICAL SYSTEM:FUSES AND CIRCUIT BREAKERS
Description
THE FUSE HOLDER CONTACT SPRING ON THE INVOLVED VEHICLES IS DEFECTIVE IN THAT IT CAN CAUSE HIGH TEMPERATURES TO DEVELOP AT THE FUSE, AND THE FUSE MAY FAIL. FAILURE OF THE MAIN FUSE WOULD CAUSE ALL ELECTRICAL FUNCTIONS TO CEASE, INCLUDING LIGHTS AND IGNITION.
Corrective action
DEALER WILL INSTALL A FUSE BOX WHICH CONTAINS A MORE EFFECTIVE SPRING, AT NO COST TO OWNER.
Notes
VEHICLE DESCRIPTION: MOTORCYCLES.SYSTEM: ELECTRICAL; FUSE CONTACT SPRING.CONSEQUENCES OF DEFECT: FAILURE OF THE MAIN FUSE DURING VEHICLE OPERATION COULDCAUSE LOSS OF VEHICLE CONTROL AND AN ACCIDENT.NOTE: ADDITIONAL ACCESSORIES SHOULD NOT BE INSTALLED PRIOR TO CORRECTION OF THEDEFECT.
................Paul