I’ve never hear of putting a fuse in this circuit but it might already be protected by one of the fuses in the junction box? Maybe your thinking of installing a resistor to reduce the voltage when using a 12 volt ’57 or later choke solenoid in a ’56 or earlier 6 volt system.
EDIT: I think I mixed that up. Should read ‘when installing a six volt solenoid in a twelve volt system’.
I should really have a second cup in the mornings.
