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CB1100 Idle speed instability problem
Think i know what you mean Speed, to test this you could get the engine up to temperature and idling 1050, disconnect the iacv and go for an extended ride.
With the iacv now " stuck" and not responding your symptoms should appear when slowing to an idle as per usual.

The "check engine light" will be on except when two 100 ohm resistors are connected instead of the iacv coils, and the engine will lose some power when the cel is on if i remember correctly.

Very encouraging to see that you are working all this out on your end.
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RE: CB1100 Idle speed instability problem - by max - 05-06-2020, 09:13 PM

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