So I was looking through old threads and found one talking about Mikuni 4T carbs.
I found this quote
"Graham Motzing ( grahammotzing) — Jan 25, 2012 01:53PM
the only difference is the atomizer, needle, jetting they come with.
reading the mikuni VM super tuning manual will tell you all you need to know.
I've only bought one of them from treats, and it had 4 stroke components. They work just fine on reedvalve kits, but for piston port cylinders you will really want the '2t' guts. i cant rmember all the numbers off hand."
Sounds like I should be fine.