I suppose the TPS could be the problem, the other possibility is that the pilot screw is not adjusted properly, or, when you cleaned the jets, you didn't clean the rest of the carb, and something else is clogged up, probably in the pilot circuit. Any time you clean a carb, you need to take the whole thing completely apart and clean every little nook and cranny. I am guessing this is a TRX 450R? I think that is the only 450 Honda made in '07.
Yours truly, sincerelly, love always, Josh aka The DirtDemon.