SOHC.co.uk Forums > CB500/550

pilot adjustment

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Oddjob:
The 069a carbs have bigger air bleeds, iirc the 627b has 5mm bleeds and the 069a has 7mm bleeds. An attempt by Honda to reduce emissions back in the 70s when California was getting very upset about smog.

The PD carbs are totally different in design so impossible really to compare like for like.

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