Just trying to get a few opinions. I have talked to a local dealership and they said no re-jetting is required. Uni website states that it should be re-jetted. I have a 2000 RM 250, I recently purchased and was doing basic maintenance and the OEM filter was trashed so I replaced it with a Uni filter. The bike is stock. Little help about wether or not I need to re-jet. Thanks All.