Yeah, what's the story on the pumper carb, I put one on a Maico many years ago but don't know much about the application to a new four stroke. Are you sure they even make one that fits the 450?? I don't think the 400 carb is a 39....Interesting note though!!! I can get the 39 keihnin that fits on the CRF450 for HALF the price as the Yamaha
part... Go figure... Does this mean that Yamaha
is really looking out for my best interest and I just don't realize it?? Starting to lean toward a red 450 when they get one with wr tranny and lights...