Over a year ago I had a discussion on this forum about fitting fuses to my 1965 B40F, but I never got round to actually doing it, but am now looking at it again. I have bought a two-way fuse box (for blade fuses), intending to fit a fuse to each of the two wires leading from the live terminal of the battery. So I would snip each of the two wires, and fit a spade connector to each end of each (so four spades in total). But where to locate the fuse box? One thought I had is to put it under the tool compartment (see photo attached, with the fuse box just held in position at this stage by a bit of green tape - obviously it would be secured by a nut and bolt.) Any thoughts on this please? Would it mean I couldn't keep any tools there, in case of them touching the connections and making a short circuit? Would it be safe? Any comments would be appreciated. Thanks in advance. Phil.
:) :)
Hi I'm just considering the same thing but on an A65. I think that theres room on top of the oil tank. Otherwise in the tool box area. Another possibility is on the frame beneath the battery.
Mike 8) 8) 8)
Sorry, I meant to say IN the tool compartment, not UNDER it. Anyway, as per photo. Any thoughts anyone please?
Phil.
PS Mike, On top of the oil tank?
Ive fitted one to the T100 chop, its got its own battery box with ignition switch on side, battery, condensor and fuse box inside with reg rec on top of lid. with all the wiring its a very tight fit, Im now worried about heat build up.
the A65 will be stripped soon, the question is nder the seat in the middle of the frame above the battery or in the headlamp shell. its down to accesability, you need to be able to get to it easy as they always go at the most inconvenient time or dont go at all..
I suppose its easier with a chop and purpose made battery boxes but dont want them to stick out, as for the B40, it is best nearest the battery as opposed to headlight, its either double sided tape , tie wrap or small bolts, if wires are long enough inside tool box cover depends if hinged =good or removeable not good
The lid of the tool compartment comes off completely. But the place I'm thinking of is on the inside wall of the toolbox, not on the lid. So on the wall that the lid pushes up to (see photo.) It's a kind of little bulkhead made of sheet steel, which hopefully would drill easily to take a small (5mm) nut and bolt. Any further thoughts, anybody? Is it a good place? Phil.
Rather than fit somethng as bulky as a fuse box, why not fit a couple of in-line fuse holders?
The link is the first one that came up
https://www.electricalcarservices.com/in-line-blade-fuse-holder-with-led-fuse-blown-warning-30a-fh546/p-4324
They take up very little space and can be tucked out of the way alongside the battery leaving your tool box uncluttered.
Steve
If I used in-line fuse holders I'd need two of them, as you say (there are two wires coming from the battery terminal), but wouldn't I also need two (or four?) snap connectors (or similar) to connect the wires on the holder to the wires on the bike? I thought maybe a two-way fuse holder would be simpler? What do other people think? Phil.
the Triumph has one of these. I have the main fuse on the first then looped to two more with lights on one fuse, ignition on another then one spare.
https://www.ebay.co.uk/itm/Fuse-Box-4-Way-for-Standard-Blade-Fuses-ATO-Holder-Block-12v-or-24v-Car-HGV/113245755933?hash=item1a5df91a1d:g:PqMAAOSw3qJbmTcf
Quote from: Phil C on 03 Sep, 2019, 18:37
If I used in-line fuse holders I'd need two of them, as you say (there are two wires coming from the battery terminal), but wouldn't I also need two (or four?) snap connectors (or similar) to connect the wires on the holder to the wires on the bike? I thought maybe a two-way fuse holder would be simpler? What do other people think? Phil.
Snap connectors? Truly the Devil's work ;) Soldered connections only, they then become part of the wiring system.
Steve
Thanks everyone for your thoughts. Here (photo) is what I've done: a two-way fuse box with a couple of ten amp fuses. Phil.
PS why didn't BSA, back in the day, fit a fuse to the electrics?
Here it is
Looks good Phil.
As to your question about BSA fitting fuses I think it's something to do with letting the smoke out.
There's a technical explanation here: https://www.supercub.org/forum/showthread.php?24170-Electrical-Theory-The-Importance-of-Smoke-by-Joe-Lucas (https://www.supercub.org/forum/showthread.php?24170-Electrical-Theory-The-Importance-of-Smoke-by-Joe-Lucas)
Hope that helps,
Betnie
For a moment I was worried. Very good Bernie. But I'd be interested to know the real reason why a fuse was not included at manufacture. Surely it couldn't be cost? So I guess that means they thought it wasn't needed? Phil.