Follow Up Report: Lone Star BMW ended up installing two different sets of RH cam shaft sprockets to restore it to spec. That quieted the engine a bit but then the RH throttle body crapped out on me which was particularly nasty. Fortunately it didn't catch me in a bad spot of traffic. I've had the bike back for a few days with limited opportunity to ride but so far it seems to be good as new. Enduro Pro mode still makes it a wheelie machine. Have yet to do a top-end run which will be limited in duration running the Twinduros with their Q speed rating.