ok here is the go, fuel line from both the main carby body and primer bulb degraded so i replaced it. however not know which did what i've sent long line from each port into the tank then proceeded to prime the bulb which worked for all of 5 seconds then the bulb wouldn't release. i then looked at an increibly similar mac and found out that the port coming from the primer bulb is just a breather of some sort however now that all the lines are doing as they should the bulb still will not prime. what have i done?