It looks good! Does it remove internal glaze though? I'm no chemist but lemon juice is acid, washing up liquid is I think alkali, put them together and they cancel each other out. That Carb looks identical to the one on my Motobi.
Well, I didn't think of the reaction, but it seemed to work a treat, looks just as clean inside than outside!
It's a nice carb, wierd that its normal aluminium, carbs are usually darker. Also, the float was plastic! I've seen plastic ones before, but usually when they're doughnut shape, this was same shape as a schmitt, but plastic. Wierd, luckily its great condition!
I wont use washing up liquid anymore as I said it just foamed a lot!
I definitally reccomend the lemon juice trcik though, perfect for unblocking jets!