HERE IS A SET OF RUBBER FUEL RAIL O- RINGS. BETTER GET THESE WHILE YOU CAN I FOOUND A BAG OF HONDA O-RINGS FOR THE FUEL RAILS TUBES THAT CONNECT THE V 30, V 45, V 65,500,700,750,1100. MAGNA SABRE,INTERCEPTOR CARBURETORS.  THESE O-RING ARE A TAD LARGER AND SEAT PERFECTLY NICE AND SOLID WHEN YOU PUSH THEM IN. IF YOU ARE REBUILDING  ANY OF THESE V 4 CARBS, I WOULD 100% TELL YOU TO  ABSOLUTELY DONT FORGET TO INSTALL NEW FUEL RAIL O-RINGS. THESE ARE JUST AS IMPORTANT TO REVIVE AS MUCH AS REBUILDING YOUR CARBS. JUST ASK ME A HONDA MECHANIC. YOU KNOW HOW HARD IT IS TO REMOVE AND REINSTALL THESE CARBS THEN FIND OUT THE FUEL RAIL O-RINGS LEAK. NOW I DO THEM NEED THEM OR NOT. YOU CANNOT FIND THESE AT YOUR HONDA DEALER YOU WILL HAVE TO BUY NEW FUEL RAILS OVER 100.00 GET EM HERE! KEEP THEM ON HAND NEXT TIME YOU REMOVE YOUR CARBS THEN INSTALL. YOU WILL NEED 6. THIS IS A COMPLETE SET.  V30,V45,V65 AND MAGNA, SABRE, INTERCEPTOR