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[GRock]

Originally Posted by LAF

Well I am up for anything on this. Spent my dime on the call to CAL. and really am nowhere ahead. I done as told, set initial settings, went for a ride to bring it up to temp 220 or so on oil, bring it home after it cools a bit, I check as told and TPS off, so set it while it is hot, as I am told, then fire it up and I cant get the IAC in range! Let it cool with fan on it, adjust IAC as it was way high and idle was high.

Now I started at 4:30 after the initial ride, every 45 minuets or so take a stab at adjustment until I run out of temp and need it to cool off, fan 45, and repeat. FINALLY it sets dead on. OK let it cool and wash up, start it, nice lope, 968-1000 RPM, take off ride the long way to my brothers, cig and water again, go out to start it and you guessed it, RACING like a nut 3 times I try, and all 12-1300 idle and wont settle out. Ride off again stop once in a mile, let sit a minuet or three, no go, ride another mile and stop wait longer, get the RED KEY light flicker, it settles in at 1000 RPM and off I go.

Get home check TPS right away, dead on 4. Try a restart and it races, download data, increase Et Based IAC start to increase them to 35 in the last 3 cells, immediately try a re-start no go, racing again. Gonna live view it, cold start tomorrow, but I AM NOT CHANGING it again. Need to find the solution to this RPM racing and then Red Key light flicker.

I am truly at a loss as to what to do, when I get a good start it runs and logs great, but this hot start racing issue is for the birds...............

OK LAF, let's see if I can give you a hand here.

If you are having trouble getting the IAC to settle in, you may be able to get the correction by adjusting the throttle blade. Remember this...... the amount of air getting into the TB comes from 2 places, the IAC and the opening of the butterfly. So if your IAC won't get down low enough after you are riding to idle correctly, then simply open the butterfly a bit more. And vice versa if you are going too low on the IAC after a run. A good way to see if you are close is to go to live data mode and see where the IAC is right after the bike goes into closed loop after warm up. If should be damned close to where you set it, but use this to do your TB adjustments to get where you need to be and then LEAVE IT ALONE!!!!!! And, of course, be sure to reset the TPS if you adjust the butterfly.
That Gerolamy dual TB should have you idling real smooth if you are set right. Don't be afraid to set yourself into the 11.5 or so range on the AFR for idle range to compensate for the big gulp that the dual 50's take in. And yes, when you get it running pretty well and idling correctly, disable the closed loop operation.

All the best.

G