Hi I have an 03 sxviper 700 and when when you're riding the sled and holding it from 4 to 5500 rpms it seems like it's getting too much fuel and almost missing. I checked the spark by pulling the plugs and pulling it over and everyone of my plugs has good spark. I also checked the compression on each of the cylinders and that was fine. I leaned the mix screw under the carbs to 2-1/2 off of a light seat ( i know the standard is 1-7/8). I have put a new fuel filter in it yesterday,blew out the fuel lines, cleaned the carbs again and ran it for a few miles and the problem is still there. I have taken the carbs off about 6 times now and pulled the fuel lines to see if anything may have been in the fuel lines. Nothing was in there and they were clean. but today when i pulled the carbs nothing was in there but it is still having that problem... I blew the fuel lines out with compressed air and they were clean so they are not breaking down. the only thing that i havent done is put seafoam in the sled. does anybody have an idea of what this could be. I just bought the sled last week just to see if there were any problems that i could address before next season and i found one i guess. please help if you have any other ideas.