I bought a new carb for my people 150 scooter on ebay but when i got it there was one hose that my old carb has and the new one does not have.The hose attaches to the carb body just where the float bowl attaches to the carb.The hose goes from the carb body to the air breather.My question is can i use this carb without hooking up the breather hose and just plugging it off or should i not use the new carb.