In all honesty, if there is a sleeve inside the areas it's been joined, it may be ok... Dunno. Looks like a -3 or maybe a touch over. Drill a small 1/16" pilot hole like a 1/2" before the weld and see. It was cheap AF.
Not sure if what we get out of the pump has the additive for winter. I picked it up with like an 1/8th of a tank and last night the temp dropped and you could hear the pump working pretty hard to move the fuel before I filled up and did additive. Guess a Fass lift pump should help.
^ that.
However, try turning the handle bars to the opposite side you're working on. It moves the tie rod way out of the way and gives you room to turn the pipe in any which direction.
I just find it funny that the guy making fun of the proper way to adjust the pancake, is the same guy adjusting his shit in a way that lets the adjuster rub the cover, but tells people it doesn't matter...
Your motor would barely rev on big bore shearers. I'm in Michigan and have CPI's, Shearers, BB Shearers, GRR Suicides, and CT inframe drag pipes you could try.