SOHC.co.uk Forums > CB350/400

400/4 tickover problems

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Oddjob:
Oh DS, well it's never been known for him to mislead people with the old "Original" description.

Were they stamped on the side with Keihin?

Did you replace the O-rings on the inlet manifolds?

Try removing the throttle cables and setting the idle with the idle adjusting screw.

Presume you synced the carbs after?

martyn1061:
Thanks. I will try to set the tickover with throttle cables disconnected, i have not balanced them yet as it has been difficult to get it to tick over at a steady 1200 rpm. Yeah new rings on manifold mounts.

Herr Supersport:
Hi

Had a stumble all over the years when opening throttle from fully closed.
New rubber-manifolds with new O-rings - in my opinion everything should have been tight. Tests with brake cleaner didn’t show airleaks.

Last year I smeared some threebond between manifolds and head and oh boy stumble is no longer here and the engine revs up like a turbine.
You might give that a try.

Is your ignition spot on? Advancer moves freely?

martyn1061:
Thanks for the tip.

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