I have a 2004 750 with about 4000 miles. When I took it out this spring I began to notice hesitation in the running at about 2000 to 4000 rpm. If I throttle up hard it will take off. I would stop to get gas & then things seemed to be fine & it would run good. I thought I might have a venting problem so when the problem arose again I stopped and opened the gas cap and started up again but this did not fix the problem. I thought it might be condensation from sitting over the winter so I put some dry gas in twice but this did not bring a solution. The problem is not constant, it seems to come and go, anyone have any answers?