there is no idle screw on the 06 r6, its all electronic, the only way to increase the idle timing is by lifting the tank and on the bottom underneath all the hoses there are 4 breathing tubes with black plastic plugs, just remove a plug and that will increase the idle speed or plug them and that will decrease it, proved it yesterday, the famous screw that everyone talks about does not exist and the one situated between the plugs is not for idle, there's a thread somewhere about idle speed that the guy moded the idle spring and installed a screw, that one is just as effective as the plugs.
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holy crap man.. seriously?
you know what you removed? a vacuum plug! and now your bike is running lean and THAT is why your idle speed increased. Those plugs are removed to hook up a throttle body sync tool.
Of course if you lean out to a dangerous level the idle increases.. same as if you were to dump in huge amounts of fuel, the idle will drop. NEITHER are good for the engine. Running lean can cause the engine to run hot at best, and potentially detonate and damage the engine at worst.
You can't adjust the idle without having other bad after affects, except though the ECU
. There IS a tiny alen head screw with small lock nut in the middle of the throttle bodies on the back side, between the block off plugs (the plugs you remove to sync throttle bodies).. that screw WILL raise or lower idle, but it is factory set and you will cause LOTS of problems if you mess with it. Trust me on this. SIX YEARS ago builders/racers were trying to do this accurately on the 3rd gen bikes, and some of us ended up having to get another set of throttle bodies.
if that screw gets turned even a slight amount, and it will have a large affect on idle but you won't see it right away even with the bike running. You might run the bike hard and then it's ideling at 5000rpm. You will try to adjust it a tiny amount, and next time out it's barely running when you let off the gas.
DON'T mess with that screw.. the only way to adjust a 3rd gen idle safely is with an ecu flash.