Vintage and Classic Hondas

blown fuse

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mikeyboy1

blown fuse

my 78K blows the main fuse every now & then (15amp).anyone else have this happen? ideas?

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Re: blown fuse

Administrator

It's common. That's why I replace them with wire in blade type fuse holders, and use a 20-30 amp breaker for the main.
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Re: blown fuse

Administrator

In reply to this post by mikeyboy1

IF the fuse is old, resistance can build up inside the fuse and cause it to blow.
Other than that, unless something is wrong, I have never had my main blow and I use a 14 amp fuse. Indeed, same fuse now for about 15 years. I couldn't find a 15 in the right size and tried a 14 and just left it. I found a 15 later but the 14 was working fine and so I left it.

Part of this time was with a vetter windjammer with a halogen, part with no vetter but still h4 halogen, another part is with a true HID bulb and ballast. Still the original fuse block, and harness. Running a dyna s too, 5 ohm coils, the originals.

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