Topic: Blowing main fuse?

[calj737]

It was the flasher. The new one required a ground connection, which had come loose and was flopping around inside the electrical panel. It must have been intermittently causing a short. I replaced it with the old mechanical one and everything is great now. Problem solved!! Thanks for all the help everyone!

Going to go put a hundred miles on it today, be right back

The stock flasher also requires a Ground. There should be GREEN, BLACK and GREY wires to it. If the ground wire were loose, it flapping around and touching bare metal would not blow the fuse, but it could cause dodgy indicator performance. But, if the loose wire was a powered wire flapping about, if it were to touch bare metal that could cause a fuse to blow.

So what color wire was loose?

[joegeis]

maybe its not the original one then. it is only 2 prong, and it is not electronic. There is a what I thought to be a "spare" ground tucked away.

The loose wire was from my new electronic relay. The relay has the two prongs, but also a 3" long black "ground" wire.

Either way, the issue is resolved! The old flasher is actually working great now. Maybe my battery was low, or it was just tired before, lol. It was taking a few seconds to begin flashing after hitting the switch. I also thought I might go LED at some point, so I replaced it. I'm no longer planning to go LED, so the old school one works for me.

[grcamna2]

maybe its not the original one then. it is only 2 prong, and it is not electronic. There is a what I thought to be a "spare" ground tucked away.

The loose wire was from my new electronic relay. The relay has the two prongs, but also a 3" long black "ground" wire.

Either way, the issue is resolved! The old flasher is actually working great now. Maybe my battery was low, or it was just tired before, lol. It was taking a few seconds to begin flashing after hitting the switch. I also thought I might go LED at some point, so I replaced it. I'm no longer planning to go LED, so the old school one works for me.

The black wire/s are power + wires,not ground - wires.

[calj737]

maybe its not the original one then. it is only 2 prong, and it is not electronic. There is a what I thought to be a "spare" ground tucked away.

The loose wire was from my new electronic relay. The relay has the two prongs, but also a 3" long black "ground" wire.

Either way, the issue is resolved! The old flasher is actually working great now. Maybe my battery was low, or it was just tired before, lol. It was taking a few seconds to begin flashing after hitting the switch. I also thought I might go LED at some point, so I replaced it. I'm no longer planning to go LED, so the old school one works for me.

To be clear, my point was the flasher would not be the culprit to your MAIN fuse blowing. Sure, correcting the wiring would resolve your indicators, but I don’t see the connection to your original, primary issue.

[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...

[calj737]

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...

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

[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!