If it's throwing the tps off even the slightest, the computer doesn't know what to do. The computer is looking for a specific voltage at that throttle position. It could be that the cable was not seated in the first place, and it and the tps were adjusted with it like that. It sounds like it's running lean. If you have the manual, it should outline the correct way to check and adjust the throttle cable and tps. Most tps's can be checked with a digital volt meter. Your check looking at the voltage at closed and full throttle. If you've ever worked with automotive system, the principle is the same. The clincher is it should be throwing a code for a bad tps if that is the issue.
I'll do some hunting and see if I can find the specs and procedure.
Also keep in mind that it may be lack of fuel, so you might want to pull the pump assy. and check the pump sock, and check fuel pressure.
Either way, I would refrain from riding it until it's fixed.
Last edited by rodsatheart; 04-06-2019 at 06:20 AM.