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Pop pop when reving down 35mm pwk


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Got some 35pwk from FAST ( *did have air strikers and they are a pita, don't do it) I have jetted my other shees fine but this one is troubleing me. I have not spent much time with them. kids, business and wife don't allow so before playing any more I thought I would ask.

When the pilot is lean does that make it "pop pop" after reving down.. In neutral? Even on both sides. Seems like I am in the right range. Responds good, returns good. Idles best at 1.5 turns out and shuts off at half.

No air leaks

Slides are in sync as well as idle

5+ timing

Shearer sb in frame

421 serval clean up port and plated

22cc domes 160psi 50/50 110vp

Large pods( fresh and oiled)

32:1 oil

Vforce 4

162 mains cel 4th clip 52 pilots

Maybe the pipes? Maybe rich under burnt fuel?

I have some 58's should I try them?

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