I have a question about 05/06 carbs as well.
I have an mx 05 trx450r w/ 13.5.1 sparks piston, sparks exhaust, stage 2 hot cam, and I swapped out the 05 for the 06 carb that was on the first bike(06 that was having problems)
My questions is if I swapped back to an 05 carb, how much if any difference would there be in performance?
The only reason I'm thinking of doing this is I have two bad wrists(broke them when I was younger) and get terrible arm pump within 3-5 min of riding. I let a friend of mine borrow my 06 carb to go to a national race as his started sticking the day before he left... and he says it was all he could do to hold on after a few laps and he never gets arm pump.
This is what I think maybe a last resort as I've tried everything I can think of from working out my hands and wrist to spending stupid amounts of money trying to get my ike better setup... any help would be great. Thanks.