SOHC.co.uk Forums > CB350/400
Very bad running.
K2-K6:
Definitely looks like the condenser is failing on 2&3 system.
Temporarily, it may improve if you open that points gap slightly to at least keep the cylinders running as a possible bodge, while waiting to get a new part.
Failing condenser stops the points switching load cleanly, with the energy wanting to spark out there rather than competently operating coil function.
They are pretty slow on two cylinder aren't they, and sound like a bag-o-spanners :)
Very minor fault though, and when correct it'll be back to smooth again.
Bradders:
Thanks K2-K6, I have some spare condenser’s that I can try, it certainly sounded like something terminal. Any gotchas to fitting condenser’s?
K2-K6:
--- Quote from: Bradders on July 29, 2023, 02:26:59 PM ---Thanks K2-K6, I have some spare condenser’s that I can try, it certainly sounded like something terminal. Any gotchas to fitting condenser’s?
--- End quote ---
Just watch where all the little insulated washers/components go on the electric terminal post.
The circuit passes through that junction without touching anything that could give a path to earth. If it earths unintentionally, that coil won't run at all as no switching will occur.
Just careful diligence as you disconnect and re-connect the new condenser. Low risk, but puzzling if you get them wrong.
Bradders:
Thanks K2-K6, will try and fix them in the next couple of days.
Oddjob:
Swap the condensers wires over to the other points, see if the sparking follows it.
If so, change the condenser.
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