SOHC.co.uk Forums > CB500/550

Cb550k3 Rectifier

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Johnny4428:
Hi everybody, anybody cruising today? Went for a run just about 18miles switched to reserve fuel on my return to town so filled up, pushed starter button wouldn’t even turn over, thank god there’s a kick start lever. I came home checked voltage on battery 11.3 volts! Not good. No power whatsoever getting from alternator to battery. I have a suspect rectifier with a slightly fried red/white wire. Question is replace with just rectifier or replace with regulator rectifier. About the same cost wise from what I’ve seen so far.

Bryanj:
Im old school and prefer original to this new fangled electonickery.
Rectifiers rately go a used one will 80% be OK.

nairb:
On my 3 phase Suzuki gt550 I use a rectifier from fleabay  for less than 3 quid.  My 550K3 still has the original rectifier so I have not had to change it but it has the same wiring as the suzuki.  3 yellow 1 green and the Red/white?.  Well the suzuki is just red.  I have these fitted to all of the suzuki bikes and in 10 or so years not one has failed. 

Its been a very cheap option.  Fleabay item search Sql35a

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Johnny4428:
Thanks very much guys, that rectifier looks very interesting, anybody else tried one? I think at that sort of money you can’t go wrong. Seen a couple on dk spares but everything advertised 39.99 postage and they don’t use Royal Mail which is cheapest for sending to Orkney, especially something that can be slipped into a small Jiffy bag.

cliff7:
I fitted a similar one only a 50A one as it had built in heat sink fins (about a fiver) to a CB400F and it seems fine so far.

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