SOHC.co.uk Forums > CB350/400

fuses

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ricardo:
Does it matter that these fuses which you have mentioned are for 250v??

petermigreen:

--- Quote from: ricardo on October 02, 2018, 04:56:40 PM ---Does it matter that these fuses which you have mentioned are for 250v??

--- End quote ---
Good question although that is just the operating voltage that the fuse can withstand in operation.
Technically speaking, fuses blow when they get hot and are rated as such and such an amperage depending on the heat that will blow the fuse for any given amperage. So that the thinner the fuse wire the less heat it can withstand and therefore less amps.
Peter

Bryanj:
Matters more with switches wether ac or dc as dc sparks heavier

Seabeowner:
Anyone know why automotive fuses, the type fitted to the early Hondas have a wide foil like element, rather than the single wire?

TrickyMicky:
Just as an aside to the 'fuses' discussion, last year I had a problem with the main fuse failing every now and again, which obviously led to leaving you at the roadside with a dead bike! Replaced fuse, everything worked fine with no obvious signs of a short anywhere. This even led an occasion when I had the fuse fail, had run out of spares, was 6 miles from home, and it was starting to rain. In a desperate attempt to just be able to get home, the only thing I had in my pocket was a screwdriver 'bit' set. Yes. the bits are a perfect fit in the fuse holder. Started bike, switched on everything possible, and looked for smoke! Got home safely, spoke to a vehicle electrician, who asked to see the old fuse which I still had. It had not 'blown' in the centre of the fuse element, which signifies a short, but had let go at one of the end caps. He informed me that this is caused by it struggling to draw current. We removed the fuse holder, after disconnecting the battery!, and lo and behold, when we seperated the plastic plug behind, all the terminals inside were a lovely green colour. Purchased a cheap set of jewellers' files, 45 minutes patiently cleaning up each spade and connector, problem solved. Plastic plug is now totally encased in insulating tape to try and keep elements at bay. I have written all this drivel thinking that if you are going to all the trouble of messing about with the fuses, spend a few extra minutes and check that 'orrible plug.

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