Nathan, the object 3rd from the right in the top row appears to be one of the jets, not the seat. I don't know if the seat is in your kit or not, but the needle and its retaining clip seem to be there in the second row. I had been guessing that the cylindrical object below the clip, in the 3rd row, was probably the seat, but I can't see it properly and am guessing. I suggest you PM Bruce - this can probably be cleared up in a flash.
