I did this recently on mine, a 2005 with 59,000 on it. Like others said, FSM is adamant about keeping solvent away from the throttle shaft where it can leach into the motor. I cleaned mine with a toothbrush damp with solvent. At any rate, I would guess it's pretty hard to do real damage unless you submerge the thing for quite a period of time.

You'll know if there's a problem...