I bought a 2011 rush 600 pro R just after christmas. I have only ridden about 6 miles because lack of snow. I would start it occasionally when showing to friends. went for a short ride tonight and this happened. 1-When i hit the reverse button it just dies. 2- after riding for 10 minutes or so it bogged down then died at about 10 mph I freaked but it started after a few pulls and giving it a little throttle. I drove it back home and it seemed ok but not quite as peppy as before. would a cheap grade of gas cause this. it seems to be idling a little low. Help please I am leaving for a 10 day trip in about 2 weeks.