Good morning all. And odd thing happen this morning while riding in to work. About 2 mile from were I was going my bike started to spit and spudder back through the breather and would hardly run, and I was beginning to think I was not going to make it. As long as I would give it plent of gas it would take on off and seem to have plenty of power, but as soon as I let off it would go back to the same thing. Any suggestions here? Would it need a tune up or bad gas, and what does a tune up consist of on a 2005 rk with EFI other than spark plugs. And what would be the number off after market plugs I could use as I am about 65 miles from the nearest HD dealer? Thanks for your help here.