I'm replacing the horn on my '79 50V, and found that the new 12V horn i bought (old one is lost) hums at idle but screams at high RPM.
Same with the tail light, dim to bright. Headlight - sorta the same, but not as bad.
Keep in mind that the lights are ALWAYS on (switch is stuck).
Is this a common problem with the lights on, or do I have some other problem lurking?
Any ideas on how to unfreeze the headlight switch?