Reply To: TE450 Rapier limited or just slow??
Go on the carb , remove it and see if there is a “throttle plate” attached to stop bike going full throttle (some EU countries have restrictions until rider upgrades license)
Or take it to a DYNO shop , and tell us the real power made, the guy will also look around for any restrictions added by previous owner to limit its power. Usually its the throttle , carbs , and exhaust and intake restricted.
It’s not possible to restrict Korea’s CDI’s.
If it is EFi , yes it is possible to fine tune it but it has to be DELPHI ECU only. Older ECU’s on EFI bikes are too difficult.