First of all, thanks for adding me here!
I own CBR1100XX from 2007 and I`m really close to lose my s&*^
No faults found in ECU.
Bird running "fine" on cold engine and smooth reaction on throttle.
Engine heats up fine up till 80/90C. After reaching to a working temperature and opening a throttle, engine starts misfiring.
Fault is easy to hear just over 2000rpms and you can see the drops about +/-200rpms. (sounds like to late/early ignition). On higher revs due to counterweight of crankshaft not to clear anymore but still not smooth.
No power lose and reaching high revs really quick.
So far I try:
a spark plugs(old has normal color), valve clearance - check and adjustment, clean and check injectors, clean and balance throttle bodies, set up TPS with color-tune plugs, check voltage and resistance on coils, I got my friend to come down with oscilloscope to check signal from pulse generators but cant really compare it to anything but he said that it doesn't look unusual, charging voltage +/-14,3V.
New ECM cost around 900e plus setting up HISS on top of that. So you know yourself...
Sorry for my English guys. It's not my native language