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NP...you can fix this at your home shop....if you have a multi meter the TPS dongle from Amazon, ($30), or even better the TPS self powered tool, ($170), you can dial this in to feel super crispy. You mentioned you are running 40/1 but what octane? Im not sure I will go get any updated maps after your posting of it getting worse, I don't want to undo a bunch of stuff and start over again, I am not sure KTM has the correct architecture in the 125 mapping. J

I have a 23' 125sx as well and had to to a little dance with the TPS voltage, (stock measured was .5163v), and red idle knob to get it to run correctly, this is also after I installed a set of VForce reeds, it would not run at all. I did a video post on YT about it. I got it to idle a bit where it was like ping-ping-ping, almost like it wanted to die and then checked the TPS voltage and it was way too high, (like .6850v), and ran so poorly, felt lean and rich at diff...