Feel free PDR1, to feed dust into any engine you own. I fail to see how this dust in the carby ****e can be extracted from Griffo's post, which is about dust damaging an engine.
It had never been pointed out to him, that the use of the carby heat, delivers 'hot unfiltered' air, directly into the carby....complete with all present dust particles....and these dust / dirt particles at his 'low level' had 'done the deed' to the donk.
Hot unfiltered air into the carby ..... then on into the engine. Not in my donk, even if it doesn't hurt the carby!!!!!! How else is the dust going to enter the engine if it doesn't go through the carby? I call bollocks to what you are saying anyway, dust will damage a carburetor eventually.