Can anyone tell me where the small (maybe suction?) hose connects to at the base of the block right behind the carbs? For some reason I noticed it was connected to the block end, but the other end was not connected to anything. It's about 8" long. At first it looked like it connected to the plastic housing in front of the carbs to catch leftover fuel but that was already connected by another hose. Any advice or diagrams would be appreciated. Thank you in advance!