I have in the past been having issues with the idle air valves not working properly, bought a few secondhand adn cleaned them same sort of problem. Bought replacement stepper unit, this is still work in progress but intially couldn't get the stepper to stay in the body.
So generally I have been using the bike with the IAC air intake blocked and the air bleeds closed; probably for about a year now and 12,000 miles. Done the usual servicing and throttle balancing
Throttle balance at tickover is alway balanced
Now the question is - I am thinking of disconnecting the air hoses between the throttle body and stepper and putting on rubber blanking plugs, which may mean I need to set up tickover balance. Am I right in thinking that the idle air screws use the stepper motor air path?
As a note the stepper wiil always remain in place and connected so no nasty ecu errors.