Help with first carb rebuild

[Zombotomy]

This is a newer truck to me. Trying to get it started was tough and found some air leakage at the carb, hairline crack and work o rings. I'm replacing the main body and all o rings. Do I lube the o rings or any needles or slides with 100% silicone lube? Getting conflicting answers when I Google it.

 

[ohsnap]

O-rings:
I don't think that it would hurt to lightly coat the top or bottom o-ring with silicone lube = but I don't believe that it is necessary.
Of the two, I would lean towards coating the bottom one.

I do give the o-rings on the needles and idle screw a coating of lube too, now that I'm thinking about it.
We're always tinkering with the HSN - and I think that the lube helps keep it from drying out.
At least that's my theory...
I would otherwise leave the metal parts dry.

Carb body and Slide:
Again, probably not necessary - but it makes me feel good to give the barrel (which houses the slide) and the slide a drop of light oil.
I usually apply an oil called "Zero Friction" - just because I have it hanging around but something like "after-run" oil would probably work.
For initial assembly, I make the carb body squeaky clean before anything goes into it and then apply the oil.

 

[CertifiedMike]

Lube the rings.