Ok, I am new to biking so bear with me please ...I bought a 04 600 and it redlines in neutral however it will not go over 12000 rpms. To me it seems as though it should go faster than that. I changed the plugs, oil, air filter, and coolant since i bought it 3 wks ago. It runs perfect until i get to high rpms. I have only put 93 octane in it...ANY suggestions would be greatly appreciated.