This was another interesting project - my poor customer got some bad advice on chemicals for his ultrasonic cleaner, used one that was too alkaline, and got some nasty corrosion on his V4 Honda carbs. This took some gentle coaxing with both the vapor blaster and the ultrasonic cleaner, but sure enough, the finish was restored and the carbs returned spotlessly cleaned, inside and out. The customer was DELIGHTED to say the least. Our pleasure! This project took about an hour and a half in total for the vapor blasting and ultrasonic cleaning ($75 at 2015 rates).