My buddy has a 90 650. We were out riding today and the no wake zone we had to go through take 10-15 minutes to go through. We got through that then we rode around for arounnd 15 minutes and it was still running great. After that it died out. It restarts fine, will run great under half throttle. Anything over half it runs good but then dies about 7-8 seconds after reaching full throttle. Not sure what it could be. We already got new plugs, new fuel filter, made sure the needles on the carb are at the right settings, other than that I'm not sure what to do besides doing a carb rebuild. Anyone else got any suggestions for us to try. This is the first day of an 8 day vacation of riding every day. Thanks for the help in advance.