My 2006 450er bogs at half and full throttle. What jets do i need to change Main jet and Anything else? Also just clarifying, I should go a size or two smaller on the jet, right? And one final question, in jetting the 450r would it be the same thing as my old raptor 350, just take off the "bottom" of the carb and swap out the jets?

 

The 450 comes jetted lean at the factory. That means you want to add MORE FUEL, and that would mean larger jets.

 

well, i bought it from the dealer like this so I am guessing this thing has been jetted correctly. But going from winter weather to summer weather wouldnt the quad be running rich?