Author Topic: High idle help  (Read 301 times)

Offline Hutch

  • Posts: 9
High idle help
« on: Oct 09, 2018, 22:06:28 »
I got my bike started, 1982 cb650sc, but its idling at 4200 rpm.

I couldn't find anything in the manual, or online related to idle adjustment for CV carbs.  Here are the changes made since removing the carbs.

complete carb cleaning and rebuild
replaced vacuum-assisted petcock with a regular petcock capped vacuum hole
bench synced
backed out master throttle control/throttle stop

Checked the slack in the throttle cables, that's not the problem.

Also sprayed carb cleaner around the carb boots with no change in rpm, so ruling out an air leak at the boots.
1982 CB650SC