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CB1100 Idle speed instability problem
Just disconnected the iacv before starting the bike, the normal rpm is1050 and the bike started immediately and idled at 850 rpm quite happy.
The ambient temperature here is 22deg c and the check engine light did come on and blinked to indicate it had set a code, upon shutting the engine down, re-connecting the iacv connector and re starting everything was back to normal, no cel and revs at 1500.

The tank has to be unbolted with a 12 mm spanner on the rear end after removing the seat and lifted 1,5 inches in my case with a piece of wood under the tank to gain access to the plastic ( push pin type) phillips screw on the right hand side of the picture which then allows the black plastic cover to hinge forward and come off the two position tabs on the bottom of the cover;





The cover can then be removed and the iacv cable disconnected by pushing on the locking tab on the left side of the connector and pulling the connector up;



Here is the 4 pole connector unplugged by pushing the locking tab on the left, it may be possible to insert two resistors in the connector to stop the cel light coming on;



So it can be done with the proviso's mentioned and provide you with some time to evaluate the situation and possibly make another video on yt so we get a better idea.
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RE: CB1100 Idle speed instability problem - by max - 12-11-2020, 01:42 PM

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