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1980 Honda CB650 — Soupapes et composants de distribution

Prepare a 1980 CB650 cylinder-head order from the measured valve and guide condition. Intake and exhaust valves have separate references. Stem seals can be ordered individually or as an eight-piece Viton package, so choose the repair quantity without confusing it with the number supplied.

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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...
Épuisé
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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1980 Honda CB650 · Valve & Stem-Seal Parts Buying guide

Choose each head component for its own position

An intake valve, an exhaust valve and a stem seal address different replacement needs. Let the head inspection establish which pieces are required before choosing between a full seal set and individual seals.

Parts to consider

1979-82 Honda CB650 / CB650C / CB650SC Intake Valve ~ Replaces 14711-426-003 Intake valveOne Japanese-made replacement intake valve; reference 14711-426-003.Voir la pièce 1979-82 Honda CB650 / CB650C / CB650SC Exhaust Valve ~ Replaces 14721-426-003 Exhaust valveOne Japanese-made replacement exhaust valve; reference 14721-426-003.Voir la pièce Honda CB High Performance Kibblewhite Valve Stem Seal Set ~ Replaces 12209-333-005 Viton valve-stem seal setEight Kibblewhite Viton seals, made in the USA.Voir la pièce

Pièces connexes : Individual stem seal

Use the valve references to avoid mix-ups

The intake replacement references 14711-426-003; the exhaust references 14721-426-003. Both are listed for the CB650 application. Compare the actual cylinder head and removed components rather than transferring another Honda model’s valve specifications. Each valve is sold individually; four intake valves and four exhaust valves replace all eight positions.

Separate seal quantity from sealing material

The Kibblewhite product supplies eight Viton seals. The standard seal linked below is sold individually. Count the needed positions before ordering either option, keeping the supplied eight-piece set separate from individual replacement quantities.

Ordering 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.

What does the Viton package contain?

It contains eight Kibblewhite Viton valve-stem seals. It does not establish that valves or guides are included or that those existing components are within service limits.

Can new seals substitute for valve-guide work?

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.

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