SOHC.co.uk Forums > CB500/550
Trouble with bike
Oddjob:
He wouldn't be the first to think the left coil supplies the left cylinders and so on. He also won't be the last. Easy mistake to make until you know otherwise. By the temps it's sounding a lot like that's what's happened.
andy120t:
I've mixed mine up before - made some incredibly loud bangs!
beardylondon:
I can confirm that the left had side coil is feeding plugs 1 and 4. And the right hand coil is feeding 2 & 3.
However on closer inspection the sparks are ALL yellow in colour, not the normal healthy blue you get. Appears to be weak power from coils?
These are Hendler coils I bought:
https://www.ebay.co.uk/itm/145665457928?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=_roJPpVgT4a&sssrc=4429486&ssuid=wmWanCu3SsS&var=&widget_ver=artemis&media=COPY
Bryanj:
Low battery will do that
beardylondon:
Thanks, will double check
--- Quote from: Bryanj on March 19, 2025, 03:33:20 PM ---Low battery will do that
--- End quote ---
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