need just a tad more power

[Roscoe]

50cc to 83.1 makes a huge difference. That's an increase of over 50% in displacement. I've done it and it was worth it. Yes, larger jet, yes, free flow air cleaner but make sure it's a real air cleaner, yes to de-restricting the exhaust. My problem was the little scooter became what I consider unsafe because it had such sorry suspension, I also bent the front rim hitting a pot hole after dark. I've pretty much parked it and use the 150cc scooter for rides now days.