Whats up all. Im new here and will be getting a WR very soon. I know a lot of people talk about the dreaded FCR bog and all the things you can do to cure it. From my experience with ATV's this bog was very odd. some bikes had it so bad that you would almost go over the bars whereas others had no hesitation at all. Anyhow my quad never came with an FCR (04 trx450R), so after coming across this site or JD jetting's site I found out about the 07 CRF 450 FCR and its improved accelerator pump circuit. I purchased this carb for my quad and never had to touch a thing. I tuned the pilot circuit slightly and rode. The throttle response was out of this world with no bog anywhere. I can't imagine any fuel injected atv having better throttle response. Anyhow, I just wondered if you had the specs and a multimeter if you could bolt that carb right up to a wr450F? I would think it wouldn't be a problem but I would like to hear from some of the experts.