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1981 Honda CB750K Engine Covers & Cover Hardware

The cover choices highlighted here are the chrome spark advancer cover, its separately listed gasket and the three-screw set. For a 1981 Honda CB750K, identify the cover being repaired and compare the installed part before combining these separate purchases.

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Currently viewing Engine Covers & Accessories

Honda motorcycle parts

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Honda CB1100 CB1000 CB900 CB750 spark advancer cover gasket 30372-425-000

Honda CB1100 / CB1000 / CB900 / CB750 Spark Advancer Cover Gasket ~ Replaces 30372-425-000

$7.95 USD
18-7059
Replace your DOHC CB's spark advancer cover gasket with this Spark Advancer Cover Gasket (rubber O-ring), replacing OEM #30372-425-000.Key Features• Spark advancer cover gasket...
Honda CB1000 CB900 CB750 spark advancer cover screw set 93700-06025-0A

Honda CB1000 / CB900 / CB750 Spark Advancer Cover Screw Set ~ Replaces 93700-06025-0A

$3.50 USD
73-0900
Replace your spark advancer cover screws with this Spark Advancer Cover Screw Set of 3 in 6x25 size, replacing OEM #93700-06025-0A.Note: the 1980 bikes...
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Honda CB valve tappet cover rocker cap 12361-300-000

Honda CB Valve Tappet Cover / Rocker Cap ~ Replaces 12361-300-000

$6.95 USD
01-9980
Dress up your Honda's top end with this Valve Tappet Cover (Rocker Cap), an aftermarket finned chrome-plated replacement for OEM #12361-300-000. Fits an exceptionally...
Honda CB1100 CB1000 CB900 CB750 starter motor cover gasket 31282-425-300

Honda CB1100 / CB1000 / CB900 / CB750 Starter Motor Cover Gasket ~ Replaces Honda OEM 31282-425-300

$11.69 USD
18-7070
Starter Motor Cover Gasket ~ Replaces Honda OEM 31282-425-300 for the Honda CB models listed below. Use this part for repair, restoration, or replacement...
Honda CB1000 CB900 CB750 chrome spark advancer cover 30371-425-010

Honda CB1000 / CB900 / CB750 Chrome Spark Advancer Cover ~ Replaces 30371-425-010

$64.95 USD
73-0050
Replace a worn spark advancer cover with this Chrome Spark Advancer Cover, replacing OEM #30371-425-010. These covers are often dented, rusted, or worn; a...
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1981 Honda CB750K · Engine Covers & Accessories Buying guide

Put together the spark advancer cover parts list

The chrome cover listing states that its gasket is sold separately. The gasket is described as a rubber O-ring, and the screw set lists three screws for the relevant cover application.

Parts to consider

Honda CB1000 / CB900 / CB750 Chrome Spark Advancer Cover ~ Replaces 30371-425-010 Chrome spark advancer coverA chrome cover listed against Honda reference 30371-425-010. Its product description explicitly says the gasket is sold separately.View part Honda CB1100 / CB1000 / CB900 / CB750 Spark Advancer Cover Gasket ~ Replaces 30372-425-000 Spark advancer cover O-ringThe gasket listing describes a rubber O-ring replacing Honda reference 30372-425-000. Check it alongside the cover rather than assuming it is supplied.View part Honda CB1000 / CB900 / CB750 Spark Advancer Cover Screw Set ~ Replaces 93700-06025-0A Three-piece spark advancer screw setThree 6 x 25mm screws listed for the 1981 CB750K cover application. Compare the hardware already present before adding the set.View part

A replacement cover is only part of the order

The chrome cover, its rubber O-ring and its screw set are separate listings. Inspect the old cover and fastening hardware, then decide which pieces require replacement. The cover’s stated exclusion makes the O-ring an explicit check rather than something to assume from the product photograph.

Confirm the cover identity on a modified engine

Several cover and cap names can appear together in this category. Use the actual location, removed component and listed replacement reference to identify the part. If the installed cover differs from the photographed one, provide photographs before ordering a finish change or replacement hardware.

Common questions

Is the O-ring included with the chrome cover?

No. The chrome spark advancer cover description states that the gasket is sold separately. The corresponding gasket listing describes a rubber O-ring. Add it according to the inspected sealing part rather than assuming the cover package includes it.

How many screws are in the featured set?

The product description lists three 6 x 25mm screws for the 1981–82 CB750K application. Compare that defined package with the cover hardware on your motorcycle; it is not a general engine-cover screw assortment.

How should I identify a cover on a modified engine?

Compare the product’s purpose, replacement reference and photograph with the installed cover. Record where it fits on the engine and provide photographs if the component differs from the listing. Fitment help can review those details before you choose the cover or its hardware.

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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