I took my 06 RSTD in to the dealer today to have the cruise control worked on. I asked that they synch the carbs. I have been out all day since I dropped it off. When I came in I checked my messages and had one from the dealer (I will leave the dealers name unkown until I have a chance to see what else they come up with). Quote from the service manager "Techs say they cannot synch my carbs because I have only ONE". Am I worried about what else they are supposed to do! You Bet!