SOHC.co.uk Forums > CB500/550
cb500 dead short
robvangulik:
--- Quote from: RGP750 on May 11, 2023, 07:15:33 PM ---Thanks Toko Jo I know Ash , I'll give him a call.
As for other suggestions. Yes battery is the right way around
The plug it in and one at a time theory is great if the fuse doesn't blow but as its still blowing it won't find it.
Still head scratching cheers
--- End quote ---
Replacing the fuse with a lightbulb makes fault finding much easier (and cheaper, doesn't cost so many fuses.)
McCabe-Thiele (Ted):
I am baffled as to how the fault has developed Rich - I for one will be very interested as to the cause of problem when you identify it. Iirc it was a new loom as well.🤔
K2-K6:
--- Quote from: McCabe-Thiele (Ted) on May 11, 2023, 11:22:21 PM ---I am baffled as to how the fault has developed Rich - I for one will be very interested as to the cause of problem when you identify it. Iirc it was a new loom as well.🤔
--- End quote ---
All wiring is capacity, doesn't melt under designed for load. And insulation, to prevent leaking into something else. Well that's the simplified way I look at it.
So, either overloaded with excess or too small to handle the task reasonably. Or, damaged physically, the insulation, to be insufficient in stopping leaking to give overload.
Checking any multi plugs first to make sure there's no obvious breach to catch you out is worthwhile.
Oddjob:
I noticed Nigel that the 550F sub loom I bought to replace my old one used thinner red wire from the starter solenoid down the the multi blade connector than the original Honda one, that wire on the Honda one is slightly thicker than the rest, due no doubt to the fact it carries the entire load of the bike, the replacement used the same gauge of wire as the rest. Not a good idea. I intend to replace that wire even though it's brand new.
K2-K6:
Some considerable number of years ago I looked at a Ford car for someone with some curios problems.
The throttle cable and clutch cable had both melted their outside plastic covers ! Slow and difficult starting too, he'd left the earth strap off to the engine block after working on it, using starter had then tracked down those two routes in scavenging earth supply to crank it :)
Damned leaky stuff yer electrick-tricity ;D it'll get out with any slight chance offered.
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