Hi guys, this is my first post. I'll be purchasing a 05 wr450f in January. I have been told by one shop that I don't need to jet the bike once you take off the throttle stop and do the airbox mod etc, yet another shop said you need to re-jet the bike. So what is needed. One guy at the shop bought a 05 wr 450 and never jetted the bike and it runs perfect after the mods. I live in Langley B.C in Canada(near Vancouver) so I'm not going to be riding really more then 3,000 feet max, most my riding will be near Princeton and Hope, Chiliwack etc. What do you guys recommend? Thanks, look forward to hearing back.