I have a 1989 Suzuki DT 75 that I plan on overhauling the carbs on. Here is my question. I see that I can get most of the plastic peices off except for the fuel fitting, this is where the fuel enters the carb from the pump. Is it safe to leave these on while I dip them in a carb solution? Or should I just use the spray type? I uses some B-12 Chemtool spray on one and it seemed to get the small openings cleared, but I have some white type stuff (corrosion?) in the bowl, will dipping these get that out? I enclosed a pic of the fitting.