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1982 Honda CB650 Valves & Valve Seals

Cylinder-head repairs on the 1982 CB650 should start with inspection of each valve and guide. Intake and exhaust replacements have different references, and valve-stem seals have their own package quantities. Choose the parts needed by the actual head condition.

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Honda CB650 CB650C CB650SC exhaust valve 14721-426-003

1979-82 Honda CB650 / CB650C / CB650SC Exhaust Valve ~ Replaces 14721-426-003

$24.95 USD
73-0980
Replace your exhaust valve with this Exhaust Valve, replacing OEM #14721-426-003. Made in Japan.Key Features• Exhaust valve• Replaces OEM #14721-426-003• Made in Japan• Honda...
Honda CB650 CB650C CB650SC intake valve 14711-426-003

1979-82 Honda CB650 / CB650C / CB650SC Intake Valve ~ Replaces 14711-426-003

$17.57 USD
73-0979
Replace your intake valve with this Intake Valve, replacing OEM #14711-426-003. Made in Japan.Key Features• Intake valve• Replaces OEM #14711-426-003• Made in Japan• Honda...
Honda CB650 CB550 CB500 CB400 CB350 valve stem seals 12209-333-005

Honda CB Valve Stem Seals ~ Replaces 12209-333-005

$2.95 USD
73-0871
Replace your valve stem seals with this Valve Stem Seal, replacing OEM #12209-333-005.Sold each, order the quantity you require.Key Features• Valve stem seal• Replaces...
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Honda CB650 CB550 performance kibblewhite valve stem seal set 12209-333-005

Honda CB High Performance Kibblewhite Valve Stem Seal Set ~ Replaces 12209-333-005

$49.95 USD
12-0083
Fit premium Viton valve stem seals with this Kibblewhite 100% Viton Valve Stem Seal Set of 8, replacing OEM #12209-333-005. Made in the USA....
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1982 Honda CB650 · Valves & Valve Seals Buying guide

Choose the correct valve position and seals

The featured intake and exhaust valves are separately identified Japanese-made replacements. The Kibblewhite option supplies eight Viton seals, making package scope clear when preparing a complete seal replacement.

Parts to consider

1979-82 Honda CB650 / CB650C / CB650SC Intake Valve ~ Replaces 14711-426-003 Intake valveOne Japanese-made intake valve replacing reference 14711-426-003.View part 1979-82 Honda CB650 / CB650C / CB650SC Exhaust Valve ~ Replaces 14721-426-003 Exhaust valveOne Japanese-made exhaust valve replacing reference 14721-426-003.View part Honda CB High Performance Kibblewhite Valve Stem Seal Set ~ Replaces 12209-333-005 Kibblewhite valve sealsEight 100% Viton valve-stem seals per set, made in the USA.View part

Keep intake and exhaust references distinct

The intake valve replaces 14711-426-003 and the exhaust valve replaces 14721-426-003. Label removed parts by position during the repair and keep the order equally clear. Appearance alone should not determine which replacement is needed. Each valve is sold individually; four intake valves and four exhaust valves replace all eight positions.

Choose seal material and package deliberately

The Kibblewhite set contains eight 100% Viton seals and is made in the USA. Select that package for its documented material and quantity, rather than assuming every product described as valve-stem seals is supplied as a full set.

Buying questions

What else should be checked when a valve is replaced?

Inspect the valve seat, spring, retainer and keepers; for an exhaust valve, also check installed height. Have the seat machined as needed, then set cam timing and valve clearance to Honda specifications after assembly.

Are both featured valve types made in Japan?

Yes. The intake and exhaust listings both specify Japanese manufacture. Match the correct reference to the valve position before ordering.

Will new valves or stem seals correct worn valve guides?

Measure valve-stem-to-guide clearance and have excessive guide wear corrected. New valves or stem seals do not establish that the guides are serviceable.

Not sure which part you need?

Send your model and year, plus photos of your existing part and any changes to the original setup.

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