Stop in for a cup of coffee

Would they be good to clean a carb?
Absolutely. Looks like this might be a good one. Big enough for a complete AFB sized carb. They clean all the gunge and residue from all surfaces especially in fuel and vacuum passages. They don't damage electronics or seals and o rings. My customer cleans electronic fired diesel injectors. New Stainless Steel 10L Liter Industry Heated Ultrasonic Cleaner Heater Timer * | eBay