Carb cleaning dips are pretty much useless these days do to th EPA making them environmentally friendly.
Ultra-sonic cleaning is preferred, gets tough deposit off, and out where you can't access them, without harsh chemicals.
Minerial spirits makes a decent cleaner, use plenty of ventilation.
I would get one of our rebuild kits, to upgrade the carb for ethanol, and the parts are far superior to the original ones.....Cliff