My PX200 as standard will do 75mph with a skinny person on it, about 70mph with me, not so skinny. I am fitting a ScootRS pipe (when it turns up), what mods can I do to the standard piston/ cylinder/ intake to extract a little more, without compromising reliability? Can any porting work be done to the unmodded engine?
It seems to me by fitting 210 kit, carb, crank, clutch, T5 gear, etc. you achieve 90mph top speed until she overheats. So this costs upwards of £500 and you decrease reliability!