Ok guys, I know all of you have had more than just a Victory in your lifetime, so here it goes. I got my wife a 2007 Yamaha V Star 650 to ride with me. It only has about 4000 miles on it. Previous owner had it for his wife and put Vance and Hines shorty pipes, k&n filter and had it jetted at the local dealer. This thing is running lean on the back carburetor and will not idle good until really warmed up, then once good and warm back fires violently on decel after a long run and will keep the rpms up around 2000 when she comes up to a stop after a long run, thus being leaned out until she blips the throttle a few times to fatten it up and let it settle down. The mechanic we have has called Vance and Hines and found she has the right jets for the pipes etc... Any ideas? At a loss here and she wants to ride. Maybe Kevin x is looking and may have astrole of genius here. I'll take any advise, but not a new bike yet, she's still learning.