Yes Briggs tries to be just as secretive as all other OEMs on the specs. I like those Nikki jets they give you the PN but not the size. I gotten a few crossed but that only what I have used myself. And our EPA here has also cause problems as they don't think the techs have the brains to correctly jet an engine.
I do admit there some out there that couldn't get out of a wet paper bag with both ends open.
