Is he not undoing the clamps first, or something?
The FJ has one of the world's easiest carbs to remove and pretty darn easy to reinstall (just requires a touch on finger strength and more than three braincells).
*I* can do it all by myself, without fuss, delay, error or damage, so any half-competent spanner-jockey ought to sail through.
If he/she cannot, then he/she is the aforementioned tit.