WOW! I can't believe the responses! THANK YOU!!!
Just after I posted this thread I ran seafoam in the tank, and took a nice hour ride and kept the rpm's high. It did a LOT of popping & backfiring! I ran it from Jacksonville down to St. Augustine (Florida) and by the time I got to St. Aug it ran much better and accelerated from a dead stop very well. No sputter on immediate acceleration.
It sat while a friend of mine ate lunch, got back on 45 minutes later and same issue, wanted to sputter but after a few minutes started running better.
Hopefully after a few more runs it'll get better.
I'm also going to run it by the dealer and tell him it's not running good and maybe they'll trouble-shoot it w/o charging me since it's had $500 carb jobs done there TWICE.
Oh, as far as my riding experience, I've been riding since I was 10 (I'm 39 now), my current steed other than the RS is an 08 Triumph Daytona 675. I've owned in the past the RS Warrior, two Suzuki M109R's, and about every sportbike known to man. I rode motocross for a few years, and currently do trackdays (roadracing).
But boy was I spoiled with FUEL INJECTION:crying:
Would it be worth the money to put bigger carbs (32mm) on it? And is that a bolt-on and go deal?