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1980 Honda CB650 Engine Service Parts

An engine parts order for the 1980 CB650 should follow the inspection and strip-down plan. Cover gaskets, cam-drive parts and piston rings address different jobs. Decide which joints and assemblies need attention before choosing a larger selection of replacement parts.

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Honda CB650 CB550 CB500 cylinder base gasket 12191-426-306

Honda CB650 / CB550 / CB500 Cylinder Base Gasket ~ Replaces 12191-426-306

$18.50 USD
18-6993
1971 Honda CB500K Four Motorcycle Parts 1972 Honda CB500K Four Motorcycle Parts 1973 Honda CB500K Four Motorcycle Parts 1974 Honda CB550K Motorcycle Parts 1975 Honda CB550F Supersport Motorcycle Parts 1975 Honda CB550K Motorcycle Parts 1976 Honda CB550F Supersport Motorcycle Parts 1976 Honda CB550K Motorcycle Parts 1977 Honda CB550F Supersport Motorcycle Parts 1977 Honda CB550K Motorcycle Parts 1978 Honda CB550K Motorcycle Parts 1979 Honda CB650 Motorcycle Parts 1980 Honda CB650 Motorcycle Parts 1980 Honda CB650C Custom Motorcycle Parts 1981 Honda CB650 Motorcycle Parts 1981 Honda CB650C Custom Motorcycle Parts 1982 Honda CB650 Motorcycle Parts 1982 Honda CB650SC Nighthawk Motorcycle Parts Honda CB Engine Gaskets, Oil Seals & Hardware Honda CB Engine Parts Honda CB500 Motorcycle Parts by Model & Year Honda CB500K Motorcycle Parts (1971–1973) Honda CB550 Motorcycle Parts by Model & Year Honda CB550F Motorcycle Parts (1975–1977) Honda CB550K Motorcycle Parts (1974–1978) Honda CB650 Motorcycle Parts (1979–1982) Honda CB650 Motorcycle Parts by Model & Year Honda CB650C Custom Motorcycle Parts (1980–1981) Honda CB650SC Nighthawk Motorcycle Parts (1982–1985) Series 5: CB650 (79-82) Series 6: CB500-CB550 (71-78)
Replace your CB650 or CB500/CB550 cylinder base gasket with this Cylinder Base Gasket, replacing OEM #12191-426-306.Key Features• Cylinder base gasket• Replaces OEM #12191-426-306Fitment /...
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Honda CB650 CB650C CB650SC Athena gasket set (top end set only)

1979-82 Honda CB650 / CB650C / CB650SC Athena Gasket Set (Top End Set Only)

$149.95 USD
18-0434
1979 Honda CB650 Motorcycle Parts 1980 Honda CB650 Motorcycle Parts 1980 Honda CB650C Custom Motorcycle Parts 1981 Honda CB650 Motorcycle Parts 1981 Honda CB650C Custom Motorcycle Parts 1982 Honda CB650 Motorcycle Parts 1982 Honda CB650SC Nighthawk Motorcycle Parts Honda CB Engine Gaskets, Oil Seals & Hardware Honda CB Engine Parts Honda CB650 Motorcycle Parts (1979–1982) Honda CB650 Motorcycle Parts by Model & Year Honda CB650C Custom Motorcycle Parts (1980–1981) Honda CB650SC Nighthawk Motorcycle Parts (1982–1985) Series 5: CB650 (79-82)
Freshen up the top end of your CB650 with this Athena Top End Gasket Set. Athena of Italy is an original-equipment supplier to Yamaha,...
Honda CB650 silent cam chain 412 x 112 14401-426-024

Honda CB650 Silent Cam Chain 412 x 112 ~ Replaces 14401-426-024

$84.95 USD
01-0223
1979 Honda CB650 Motorcycle Parts 1980 Honda CB650 Motorcycle Parts 1980 Honda CB650C Custom Motorcycle Parts 1981 Honda CB650 Motorcycle Parts 1981 Honda CB650C Custom Motorcycle Parts 1982 Honda CB650 Motorcycle Parts 1982 Honda CB650SC Nighthawk Motorcycle Parts Honda CB Cam Chains, Guides & Tensioners Honda CB Engine Parts Honda CB650 Motorcycle Parts (1979–1982) Honda CB650 Motorcycle Parts by Model & Year Honda CB650C Custom Motorcycle Parts (1980–1981) Honda CB650SC Nighthawk Motorcycle Parts (1982–1985) Series 5: CB650 (79-82)
Refresh the valvetrain on your CB650 with this Silent Cam Chain, 412 x 112 links. A direct replacement for original OEM chain #14401-426-024 across...
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1980 Honda CB650 · Engine Service Parts Buying guide

Turn the inspection findings into an engine parts list

The available parts support both small cover repairs and deeper engine work. Keep timing-drive specifications, piston measurements and gasket locations separate when translating the repair plan into an order.

Parts to consider

1979-82 Honda CB650 / CB650C / CB650SC Valve Cover Gasket ~ Replaces 12391-460-770 Valve-cover gasketCylinder-cover gasket for the CB650; reference 12391-460-770.View part Honda CB650 Silent Cam Chain 412 x 112 ~ Replaces 14401-426-024 CB650 silent cam chain412 × 112-link chain; reference 14401-426-024.View part 1979-82 Honda CB650 / CB650C / CB650SC Piston Ring Set (Standard Size) ~ Replaces 13011-426-004 Standard piston ring setRings for one piston. Four sets are required to renew all four pistons.View part

Related parts: Internal primary chain

Separate the two internal chain applications

The cam-drive product is a 412 × 112-link silent chain, whereas the primary chain has 50 links and different references. Those descriptions belong to separate engine assemblies. Use the correct inspection and timing procedures before deciding which component needs replacement.

Count rings after checking the cylinders

The standard ring package covers one piston. A complete four-piston ring replacement therefore requires four sets, provided standard size is correct for the measured engine. Existing oversize pistons or machining work require another verified choice.

Ordering questions

Can I choose standard rings without measuring the engine?

Confirm the bore measurements and piston markings first. The offered standard-size rings do not establish that a motorcycle with an unknown rebuild history still has standard-size pistons.

Which gaskets should I plan for timing-chain work?

Follow the intended service procedure to list every joint being opened. Match each replacement gasket to that joint and inspect the mating surfaces; the order depends on how far the engine is dismantled.

Is the primary chain a rear-drive replacement?

No. The 50-link primary chain is an internal engine component. Its category placement does not make it an appropriate replacement for the chain driving the rear wheel.

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

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