SOHC.co.uk Forums > CB500/550
Contact breaker points
McCabe-Thiele (Ted):
I'm going back a couple of years, it was a very good used plate.
florence:
--- Quote from: Ken4004 on August 06, 2026, 10:56:02 AM ---
--- Quote from: Oddjob on August 04, 2026, 10:53:58 PM ---Good experiment. Might be an answer for other members as well. DS still has around 24 sets of 1-4s but no 2-3s. If it works it may just be an answer until he runs out of original points that is.
Be sure to let us know, could be very interesting.
--- End quote ---
Good morning everyone, well that didn’t go well !
I have just done the experiment fitting the Tec points (1-4) to a new base plate and it was miles out and no way of getting to time without a-lot of filing so I think as an experiment it was worth trying but a total failure as parts are a not so mismatch.
The other thing I just noticed is that the new points I bought had the three propellers so not surprised I was having a problem but you live and learn.
So fitting back the new points and going to have to live with a slight misalignment on 2-3 points.
I still have the original tec points assembly so might clean up both sets of point faces and fit the original points assembly back on the bike and see how that goes so a job for the weekend.
--- End quote ---
I'm even more confused now. Are there different base plates? Mine has the original one.
McCabe-Thiele (Ted):
I believe there were two suppliers originally, for advancer & back plate.
TEC was one.
Bryanj:
Daichi used to sell a complete plate as well back in the 70's, but they were decent parts then
deltarider:
--- Quote from: Bryanj on August 06, 2026, 02:33:22 PM ---Daichi used to sell a complete plate as well back in the 70's, but they were decent parts then
--- End quote ---
Also to my knowledge. Dunno what has happened afterwards.
BTW, is this about a CB400F? Then better consult the partlists or CMSNL. I'm still not sure if it was one size fits all. Didn't the CB350F/400F have -333- in the middle of the partsnumbers concerned?
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