I am trying to resurrect a motor that has been sitting for about 10+ years. I rebuilt the carb and found a nipple under the carb attached to the housing under where the carb attaches. I also found a hose leading from above the fuel pump not attached to anything. The question is this. The diam of the nipples are drasticly different in size and unless I use a reducer to attach the nipples there is no way it fits. Sooo... is there a part missing? Am I attaching the hose to the right place? I purchased a service manual by Clymer and it does not show. Help!!!!!!!