Okay, I hate to be asking for more advice from this site but better this than screw up my bike. I have had my bike sitting for a 3weeks now(time went quick) and have started it up and let it idle for a while once a week, well a week ago I went to start it and ride it to get everything moving and after idling for 5mins it began to sputter and then died. It had a full tank of gas and fairly new plugs and wouldnt start after that, I could hear the starter motor so I know that was ok. I first replaced the plugs since this has often been the problem and I charged the battery. Once done the engine started after a couple cranks but is now running rough. If I give it any gas it dies, and will only idle for a few minutes before dying. The battery is barely a year old, so I am pretty sure this is not it. I am certain the plugs are gapped properly since I have done it consistently the same(although i am going to check it) One thing I did was put my hands at the back of the pipes and on pipe had warm air spitting out, and one cool. So none or little spark in the one. Any ideas or has anyone experienced the same thing. I immediately turned my bike off as I do not want to cause any damage to my bike.