SOHC.co.uk Forums > CB500/550

Black smoke and hanging idle after a full rebuild

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deltarider:
All K3s are prone to a hanging idle. The black smoke is intriguing however. Often it is a reduced air intake.

Bryanj:
If its a Dyna ignition the US board reports a lot of faiures

royhall:
I stopped reading at Pods K&N. They have got to go on a K3 the carbs don't like them at all. Search the internet for a correct airbox.

deltarider:

--- Quote from: royhall on June 15, 2021, 05:24:15 PM ---I stopped reading at Pods K&N. They have got to go on a K3 the carbs don't like them at all. Search the internet for a correct airbox.

--- End quote ---
But... his are 069A carbs...

royhall:
Ah yes missed that sorry. So he's running F carbs on a K bike? They work better with pods but that said the internet is full of people trying to get a stable setup with pods fitted. I would still get rid of them and remove a known complication.

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