SOHC.co.uk Forums > CB500/550

Charging problems

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metalcatfish:

--- Quote from: Bryanj on January 24, 2011, 05:53:46 AM ---500/550 only charge at over 3,000 rpm and then only just with a standard headlamp and not quite with a halogen replacement

--- End quote ---
Thats very interesting, Thats not an issue Ive had with my bike though. I run halogens, twin tail lights, removed kickstart and electronic ignition and even with lights on i can get a reasonable charging voltage at the battery at tickover.  In fact I'v never noticed any specific issues with charging on this model. But I only have my own bike and its the only 550 ive ever owned. Mine has been rewired though, which I did myself. So is it possible that there is an inherent weakness somewhere in the original wiring loom? I did have problems when using the combined electronic reg rectifier unit though.

SteveD CB500K0:
According to my books, the 550 alternator put out 110W at 2k revs. If you take a couple of amps to run the ignition, that doesn't leave very much for everything else.

My 500/4 will only indicate properly at over 3k revs - I have a very understanding MOT tester!

captaindonutbikes:
I've got one of them combined rectifier/regulator units which solved my charging issue.

 ;D

florence:
My trafficators never worked properly so I did the decent thing and threw them in the dustbin.

matthewmosse:
I have one altinator / stator unit that doesn't charge the battery as quick as it uses power with lights on under 3000rpm but other than that one unit which I'd presume faulty my 500 and 550's always ran lights on or off, and kept up with demands of indicators and sidecar lighting just fine for most of the time I ran these bikes - everything was stock on my bikes so that's how things should run. I'd had the same problem when I was last running the bike - swapping the regulator and rectifiers didn't seem to sort it so when I get the time I'll be lloking into the wiring.

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