These numbers are for a xb but should be the same for the x1. The sensors the same but I don't know if the wire is long enough. Pick it up at your local auto parts store. When I bought my last one it was like $14.00.
Matt
i doubt its the tps, sounds just like what my bike was doing last summer. Put in new intake gaskets man, i doubt they have been done for a while. feel free to PM me as there are not alot of people on this board that have tubers!