Topic: Blowing main fuse?

[joegeis]

Maybe I was mistaken about how it was wired or what color was loose, because swapping out the relay definitely solved the fuse blowing issue.

[scottly]

The stock flasher also requires a Ground.

No it doesn't, it's a two terminal type. People are always asking what the extra green wire is next to the flasher...

[Deltarider]

Per this diagram it is a 3-wire on the 550.

Dunno why you had to present that diagram. As if we aren't having enough problems coming from that Clymer manual. Anyway, here's the correct wiring diagram for OP's model. The winker relay in that model - CB550K4 - had only two prongs connected: Black and Grey. Cf. p.96 in: http://manuals.sohc4.net/cb550/owners_manual/OM55078.pdf

[MauiK3]

Good job

[BenelliSEI]

Good job

Interesting…… As usual, the first question we should ask is “what did I do (or change) to cause this new problem??” . Odd how often I end up pointing my finger back at myself!