1982 Honda CB650SC Fork Seals & Cap O-Rings

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Honda CB900 / CB750 / CB650 / CB550 Fork Seals

$21.95 USD

Replace your DOHC Supersport or Nighthawk fork seals with this Fork Seal Set, 37 x 50 x 11mm. Made in Japan by OEM supplier.Key...

Honda CB900 CB750 CB650 fork cap o-ring set 2 91344-PC9-004

1980-83 Honda CB900 / CB750 / CB650 Fork Cap O-Ring Set/2 ~ Replaces 91344-PC9-004

$2.95 USD

Replace your fork cap O-rings with this Fork Cap O-Ring Set of 2, replacing OEM #91344-PC9-004.Key Features• Fork cap O-rings• Set of 2• Replaces...

Honda CB900 / CB750 / CB650 / CB550 Fork Dust Seal Set

$25.95 USD

Replace your DOHC Supersport / Nighthawk fork dust seals with this Fork Dust Seal Set of 2. OEM-quality parts made in Japan.Key Features• Fork...

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Universal motorcycle headlight reflector rubber base 33743-425-600

Universal Motorcycle Headlight Reflector Rubber Base ~ Replaces 33743-425-600

$16.95 USD

Upgrade or restore your Honda motorcycle’s headlight assembly with this Headlight Reflector Rubber Base — precision‑designed to replace OEM #33743‑425‑600. This rubber base provides...

New

Honda CB750 CB650 headlight stay headlight reflector bolt 90120-425-000

1979-83 Honda CB750 / CB650 Headlight Stay / Headlight Reflector Bolt ~ Replaces 90120-425-000

$8.95 USD

Replacement headlight stay bolt for restoring your CB750's headlight assembly back to proper condition. This is the bolt that fastens through the headlight ears,...

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1982 Honda CB650SC Nighthawk · Fork Seals & Cap O-Rings Buying guide

Identify each fork sealing position before buying

The oil seal specification is 37 × 50 × 11mm. The dust seals come as a pair, and the fork-cap O-rings are another two-piece package. Keep those product contents and service locations distinct.

Parts to consider

37mm fork oil seals37 × 50 × 11mm fork seal set, explicitly listed for the 1982 CB650SC.View part

Fork dust seal pairTwo dust seals with explicit 1982 Nighthawk application.View part

1980-83 Honda CB900 / CB750 / CB650 Fork Cap O-Ring Set/2 ~ Replaces 91344-PC9-004

Fork-cap O-ring pairTwo cap O-rings replacing reference 91344-PC9-004.View part

Build the order around the fitted fork

The selected oil and dust seal products explicitly list the 1982 Nighthawk. Use the actual fork identity if the front end has been changed. Do not transfer the smaller dimensions of another CB650 variant or a tool-size assumption to this fork repair.

Keep cap seals separate from the lower sealing parts

The cap O-ring set supplies two pieces for reference 91344-PC9-004. It serves a different location from the oil and dust seals. Inspect each position and use the appropriate service procedure, oil specification and assembly checks for the fork being rebuilt.

Fork Seals & Cap O-Rings questions

Is a fork-cap O-ring change safe to start with the fork springs loaded?

The cap-seal guidance says to support the motorcycle and unload the fork springs before loosening the caps, which can remain spring-loaded. Follow the correct 1982 fork procedure and control the cap as directed; replacing a small O-ring still involves a loaded assembly.

What should be checked if a cap leaks despite a new O-ring?

Check the O-ring groove, cap threads and sealing surfaces rather than assuming the new ring fixes every leak. The product guidance calls for clean grooves, compatible fork-oil lubrication and starting the caps by hand to avoid damaging the sealing and threaded interfaces.

Which reference identifies the cap rings?

The two-piece cap O-ring set replaces 91344-PC9-004. Match the fitted cap and fork application before adding it to the service order.

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