In my previous post was trying your suggestion to set at +8 , then lower ROMs till it died, then try a -8. Basically it didn't work.
Now I just tried setting to 1500 rpms at 0 co. I could go to +30 and -30 ( max on the diag tool) and the motor would not die at each setting. Again max increase in ROMs was just in the positive co range.
Not sure if it matters but FYI, I'm running a drd exhaust.
I have a Bosch wideband sensor in my husky and maybe I find a way to use that to check co.
from -30 to +30 still idling?
There's something seriously wrong with your bike or ECU!
I'll try and make a vid showing off how to kill the engine by changing CO on my WR.
Exhaust should not matter much for idle adjustments, except for a very clogged up one, creating noticeabl backpressure even at idle.
Hook up the Bosch wideband and check yer AFR:
Grab some "leftover" WR header, some O² sensor threading off some other junkyard's part and
have someone with stainless steel welding capability put the threading into the header.
That is exactly what I had a shop done when I was developing the FI for my WR400F
My bike turns stochimetrically lean (AFR > 14.7:1) below CO setting of -25.
-25 and higher reads rich (not wideband here, just the stock euro four wire WR O² sensor)