Originally Posted by bentspoke
I think 200-250cc four strokes would be about perfect. About like old Riva we had.
I don't really care for all those 500cc type deals, they cost more than a motorcycle, and don't really get good mileage.
Not sure what size this scooter is,....
if I'd have to take a guess it's a 38/40 DDD, 20 liters, no foam...