cm526

Hey guys,
I just finished rebuilding my 1971 CB 350 twin.
I had somebody "rebuild the carbs"
and shortly after I took them apart myself and actually rebuilt them.

Now whenever I fire the bike up, the rpm jumps to about 4000 and stays constant.
The carbs are responsive and the bike is running strong just no idle.
I have already adjust the idle screws with no change good or bad.

Any ideas on what to chase or where to look next?

8541Hawk

Is there slack in the throttle cable(s)?

cm526

Slack as in free play with no sticky spots. Yes
Slack as in extra cable because of incorrect throttle cable. No

Thanks for the response 8541Hawk

eram

Idle speed adjustment screw? (Not idle mixture)

Air leaks at the boots would be my next bet.