Alright guy's I'm having alot of headache and trouble here. So here's the story. One of my good buddys just bought the bike about 4 months ago. It was cold when he got it so he would go out every few days and start the bike and let it run and get to full operation temperature. He let the bike sit for about 2 weeks once before starting it again. When he went out to start it again the bike would not start up. It would crank and act like it wants to start up and would never fully fire. So i went and looked at it and it had cheap autolite plugs in it. I suggested new ngk plugs. We put them in and still the same thing as before, cranks but no start. After the we drained all the old gas from the tank that had been sitting awhile and added new gas to it. STILL same thing is happening cranks but still no start. Finally i get the bike to my house and i get the carbs pulled off the bike and clean them and get the carbs put back on and it is still doing the same thing the bike will crank and crank and crank but will not start no matter what. I have pulled all 4 plugs and checked for spark and they all have a nice spark to them and the plugs are wet and smell like gas when i pull them out. I am so confused and stumped right now. Have any of you guys ran into a problem like this before? Also i have unhooked the line comeing out of the fuel pump and hit the start button and gas does come out of it as im cranking the bike. I'm thinking a bad ground wire somewhere or something, but just wanting to get other peoples opinions as well. Thanks guys!!