Thanks for your help.as it turns out the tank air valve was blocked hench why the bike would only start with the cap off. I will look into a float kit anyway as the bike is still not performing as well as i think it should. Thanks for your help

Also i went out to it thismorning and decided to start the bike with the fuel cap off and bang first try she goes. I belive that means a blockage??

Plugs looked fine the normal anount of black. Its 2008.