Down on power, falls on face at 5K RPMs
Hey everyone. I've got a 2016 GSX-S1000 with 3500 miles on it. I installed a Power Commander V when the bike had 120 miles. All stock otherwise besides cosmetics. Last year the bike ran great, but this year it seems to be having problems. It does not have the power a 1000 should. I thought I was just getting used to the power after years on an R6, but thats not the case. The bike doesn't pull like it should. I have also noticed that there has been a seemingly increasing flat spot around 5K RPMs. I know these bikes have a flat spot there anyway, but today the bike was actually stuttering at that RPM, almost like the feeling of traction control kicking in. Once you get through the stuttering around 5K, it comes out of it a little and stops stuttering, but still doesn't accelerate like a 1000 should. The problem seems to be at full throttle settings.
There are a few things I think it could be that I want to check...
1) Disconnect the Power Commander to see if that is acting up
2) Check airbox for rodent obstruction
3) Bad gas
4) I adjusted the primary TPS sensor before the season started, maybe something went wrong with this procedure? Pre-adjustment voltages were 1.01/3.96 closed/open throttle. After adjustment, the voltages are 1.12/4.10. Is the open throttle voltage ok? Seems low? I think spec is 4.5v? After the adjustment I can't adjust the traction control settings with the bike running, which other people have mentioned as well.
My R6 acted similar to this when it had a bad coil, but it also would almost stall at idle, where this bike seems to be idling fine.
Any other thoughts?