Who know, is this is the 106cc or the 137cc?
I don't think you can tell without measuring the bore.
I seen your listings on those facebook chainsaw sites. Don't let those morons stroke your ego over this thing. A lot of those guys get a woodie from picking up a Mini Mac or a Frontier saw along with the idiots telling you have to run 16-1 mix in the saw or you will burn it up..
I only even look over there from time to time for a laugh.