CB1100 Idle speed instability problem

[max]

Hmmm, this guy has a video in three parts where he cleans his tps.

The symptoms sound the same as ours, slightly long winded but has some interesting tricks in it probably worth a look;

https://www.youtube.com/watch?v=IuuSlyAyO2M

also has some good comments from other owners.

Thanks for keeping an eye out for this issue,Riko, as far as i can see your new throttle body has only 2 parts in it that are electronic controls; the tps and the iacv, kinda makes an easy choice.

The tps adjustment is kinda critical and may be the reason why they sell them as a unit to save on labor and mistakes made by undertrained mechanics.

by the way, a tps is exactly the same as a volume control on your radio, a variable resistor, and remember when it crackles if the volume changes?

cheers max