I have a 2009 blast and its giving me a problem that I can't figure out. It starts up and runs fine till I get it into 5th gear on the highway and after a few seconds it just starts to lose power. It feels like it is bogging down and jumping while i'm giving it full throttle. You can audibly hear it too. I let go of the throttle and it just dies but will start right back up if I get back on the gas or hit the ignition button. I just can't figure out the problem is. It seems like a carburetor problem but I can't figure it out. If needed I think I have a video of it doing this problem.