1985 Honda CB450SC Nighthawk Fuel Delivery Parts and Package Choices

Inspect the valve body and sealing faces for corrosion or damage and check the fuel passages, as the listing recommends. The package supplies one diaphragm, one spring and two O-rings for the compatible petcock; body condition affects whether those parts suit the intended repair.

Each new holder includes its own O-ring. The separate pack supplies four 40 x 2.6 mm rings for renewing seals at retained compatible holders. Identify whether you need holder assemblies or seals alone before adding both purchases for the same intake connections.

Its extensions are 180 mm and 65 mm long with 5 mm threads, accompanied by hoses and dampening valves. Compare the fitted carburetor’s vacuum-port interface with those supplied pieces. The universal/custom listing does not establish compatibility with every replacement carburetor connection.