Alright, so not to de-rail this thread.. i've got an update, and it makes a little more sense now.
I went for a good rip on the Raider to get her back in tune. 2 x 50 minute runs, to the lake and back.
As i got to the lake I had only the android app to play with so i could not see trims, i could only accept all.
As I rode out there it seemed there were times the PCV was adding a bundle of gas and others felt like it was struggling to pull it back
I went with it and found on the way back from the lake the power-band felt a little more like its old self.
It was no longer sluggish in 4th and 5th gear so i figured it may have been running rich on those particular
gears, post valve adjustment. 3rd felt very strange the entire way there, and woke up big time on the
way back even though i could feel the pcV still had work to do.
Once i got back and pulled the 2nd run map I found 3rd gear had been running lean as fvck in lower RPM and low TPS%.
Interestingly enough, accepting suggested trims brought 2nd gear and 3rd gear closer together in terms of % fuel required.
4th and 5th gear had both been running rich as i was nearing the max adjustment limit of 5% on both of 'em,
I can only imagine what % fuel the PCV pulled off during the 1st run but i suspect this is where i lost the 20kms
to the tank. We were running on 3rd 4th and 5th while returning home from the canyon last weekend, so I wouldnt
have been in low gears. It was definitely running rich up in high rpm/ higher gear.
So there you go
, i suspect your own R1 had a similar combination of resulting AFR, at least in my
own experiment, it was only the lower gears which were running LEAN, i was actually rich once I got higher up the RPM.
2009 YZF-R1 xPlanker
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Last edited by bacchus40; 04-28-2019 at 02:29 PM.