Ok one cylinder is popping it feels cold the other seems fine I've tried new plugs new battery I've tried the fuel air ratio it seems like it gets. Little better but still pops when I let off the throttle after it warms up the exhaust is warmer and there s something else hoping someone might know I pulled thee tank off today and there is two little plugs one has a little black thing plugged in to it but the other has nothing I must sound like a idiot should have taken a pic might do that tomorrow any ideas or help would be greatly appreciated