Solution for soaking Zenith Carb

[Mike1291]

If you want a less intrusive option you can try EvapoRust and shoot all the passages with an air gun. Beware though that any bare steel with flash rust if you don't paint/coat it.

[JayJay]

I disassemble completely, then soak in carb cleaner followed by Evaporust. I then use a paper clip or piece of safety wire to clean all the air passages, using compressed air to blow them clean. Then I shoot brake cleaner through all the air passages.