Some Aztek Help Needed

Sounds like the paint is clogging the needle. I see this a lot with acrylics. Try taking the needle out and soaking it in cleaner. You may be spraying your paint too thick. I thin my acrylics about 60% thinner (alcohol or water, depending on the paint) and about 40% paint. Sometimes you may even hav e to go thinner.

Have you taken the heads completely apart? Pull off the little cap on the back, and pull out the needle and the spring.The fatal flaw in the design is that the spring is in the paint path and is a natural for getting gummed up.

I ended up using lacquer thinner all the time, every time to strip down, clean and reassemble the tips, before I finally traded up to a Badger 105.

I thought I thinned my paint well enough, but obviously not ! I tried thinning the paint as suggested (40/60 ratio) and the problem seems to be solved.

I also dismantled the spray head completely and cleaned all the parts (needle, spring, plastic tub and head) which helped a lot. From now on I'll always take the heads apart for cleaning before proceeding to the next paint job !

Great many thanks for your help in this matter

Testors also makes special nozzles for acrylic.  They are the black one and the white one.

-Jesse