1981 Honda CB750K Engine Parts & Buying Guide

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Honda CB1100 / CB1000 / CB900 / CB750 High Performance Kibblewhite Intake/Exhaust Valve Guide

$49.95 USD

Upgrade your valve guides with this High-Performance Kibblewhite Intake or Exhaust Valve Guide (standard size). Made in the USA by Kibblewhite, who have been...

Honda CB750 high performance kibblewhite black diamond exhaust valve 14721-422-000

1979-83 Honda CB750 High Performance Kibblewhite Black Diamond Exhaust Valve ~ Replaces 14721-422-000

$54.95 USD

Upgrade your DOHC CB750's exhaust with this Kibblewhite Black Diamond Exhaust Valve, replacing OEM #14721-422-000. Same Black Diamond process: stainless steel with special German...

Honda CB750 high performance kibblewhite black diamond intake valve 14711-422-000

1979-83 Honda CB750 High Performance Kibblewhite Black Diamond Intake Valve ~ Replaces 14711-422-000

$54.95 USD

Upgrade your DOHC CB750's intake with this Kibblewhite Black Diamond Intake Valve, replacing OEM #14711-422-000 / #14711-MA4-770. Same Black Diamond process as our other...

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Honda CB900 CB750 cylinder sleeve o-ring gasket 91302-425-000

1979-83 Honda CB900 / CB750 Cylinder Sleeve O-Ring Gasket ~ Replaces 91302-425-000

$4.61 USD

Replace your DOHC CB's cylinder sleeve O-rings with this Cylinder Sleeve O-Rings Set of 4, replacing OEM #91302-425-000. Four pieces required per engine.Key Features•...

Honda CB750 / CB900 / CB1100 Valve Stem Seal

$10.95 USD

Service your late-model CB's top end with this Valve Stem Seal, replacing OEM Ref. #12209-422-005 and made in Japan. Fits a wide range of...

Comparer

1981 Honda CB750K · Engine Buying guide

Build an engine order around the work required

Separate routine service parts from components chosen after inspection. A gasket assortment, a shim selection and a piston kit solve different problems, with different contents and ordering quantities.

Parts to consider

1979-83 Honda CB750 DOHC Athena Overhaul Gasket Set

Athena overhaul gasket setThe listed contents cover major engine joints and include valve stem seals, exhaust headpipe gaskets and sleeve O-rings. Compare the itemized inventory with your repair scope.Voir la pièce

Honda CB1100 / CB1000 / CB900 / CB750 Valve Shim Kit

Twenty-piece valve shim assortmentA case of 25mm shims with two pieces in each of ten listed thicknesses. Check the required thicknesses before choosing an assortment over individual shims.Voir la pièce

Standard Size (62mm) Piston Kit (07-0184)

Standard 62mm piston kitSupplied for one piston: standard 62mm piston, rings, pin and a pair of clips. The listing specifies four kits for all four pistons.Voir la pièce

Pièces connexes : Six-piece engine shaft seal kit · Stock-type oil filter element · Silent cam chain A

Choose the scope before the assortment

For a cover reseal, start with the gasket for that joint and inspect the removed parts. For a larger teardown, compare the overhaul set’s actual contents with the shaft seal kit. An overhaul label does not replace an item-by-item parts list.

Keep measurement-dependent parts on a separate list

The piston kit is standard 62mm, while the ring listings also offer oversizes. The shim case contains a defined selection, rather than every available thickness. Have the installed components measured and record the required sizes before turning either choice into a complete engine order.

Common questions

Does cylinder-head work require removing the engine?

Honda lists the cylinder head and camshafts among the components serviceable with the engine in the frame. Identify the actual repair before planning engine removal; this does not mean every internal engine job can be done in place.

Does low compression prove that new piston rings are needed?

No. Honda also lists incorrect valve clearance, leaking valves and a leaking head gasket as possible causes. Have the cause established before buying rings or a piston kit; a low reading alone does not identify the failed part.

What measurements are needed before ordering valve shims?

Record each valve’s cold clearance and measure its existing shim with a micrometer. Honda’s selection chart uses both measurements to choose the replacement. Keep the readings tied to their valve positions so the order reflects the actual engine rather than a guessed assortment.

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