SOHC.co.uk Forums > CB500/550

UK 500 fixer upper

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Bryanj:
You will have to keep the revs up if you want it to charge with an H4 headlamp, mine did in the 70's but lets just say hooligan was slower

deltarider:
Never ever had a problem running a 55/60 Watts H4 on mine. As a matter of fact my bike came with it and it certainly was on the CB550K3 for continental Europe which has exactly the same charging system. BTW, I wonder if that's why Honda went from one 15A main fuse, to a fuse box with three fuses on these latter models, knowing: 5A (taillight), 7A (headlight) and 15A (main).

Woodside:
On that note
Did early 500's have a different air box lid.
I know they generally they have a tiny slot for a rubber fuse holder molded in that takes 3 fuses .?
But why 3 fuses ? When the electrical system only had the one in use ...

So have the lids always had a space for the 3 spares

Nurse Julie:

--- Quote from: Woodside on July 01, 2020, 09:10:21 PM ---On that note
Did early 500's have a different air box lid.
I know they generally they have a tiny slot for a rubber fuse holder molded in that takes 3 fuses .?
But why 3 fuses ? When the electrical system only had the one in use ...

So have the lids always had a space for the 3 spares

--- End quote ---
Yes Jason, 3 spares

deltarider:
What a beautiful theory! And - moreover - proven in practice. Yes, it is all about robustness, folks. BTW, the 5A and the 7A fuse on mine are still the original ones. The 15A has been replaced a couple of times.

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