CB1100 Idle speed instability problem

[dave]

Thanks Dave nice report, if it is not too difficult to do i wonder if you do the same thing as before by disconnecting the iacv before starting the bike ( iacv is in 1050 rpm running position when the bike is switched off ) and nursing it to warm up to the point where the rpm is stable enough and taking it for a ride to see if the idle is usable without the iacv valve connected.
In other words: because it is now fixed in one ( correct ) position it cannot change idle rpm and mess with idle speed.

Ignore the check engine light flashing.

+1 on Doc; max

Hi Max, I just found your post. Absolutely, I can do this test, but one question first. If my bike is experiencing a low idle condition when I turn it off and leave it for the night, does this mean that the IACV is potentially stuck in a low idle condition? To perform your recommended test properly do I need to put the bike away for the evening while it is idling correctly, or does it matter? I can do this test tomorrow, if it's not raining (there is a 70% chance of rain tomorrow here).