So I guess it was bound to happen eventually: I finally got a Puch e50 with the dreaded metal intake port restrictor sleeve. I thought, OK, I'll just take it out.
I take off the cylinder, and the intake port is TINY--I wonder if I'll ever get any speed out of this thing, even if I can get that metal sleeve out. The cylinder is stamped #4.
So what am I supposed to do with this thing--is it even worth fooling with? (pic attached)