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1981 Honda CB900F Carb Holders & Airbox Boots

The 1981 CB900F intake rubbers are offered as two separate four-piece sets: holders on the engine side of the carburetors and boots on the airbox side. Identify which joint is cracked or hardened before ordering, then check the clamp sizes for that set.

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Currently viewing Carb Holders, Air Box Rubber Boots, Clamps

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Honda CB1100F CB1000C CB900 carb holder set 16211-438-000

1980-83 Honda CB1100F / CB1000C / CB900 Carb Holder Set ~ Replaces 16211-438-000

$89.95 USD
48-1477
Replace your CB900, CB1000C, or CB1100F carb holders with this Carb Holder Set of 4. Replaces those old cracked or dried-up carb holders. Replaces...
Honda CB1100 CB1000 CB900 carb air box rubber boot set 17251-438-000

1980-83 Honda CB1100 / CB1000 / CB900 Carb Air Box Rubber Boot Set ~ Replaces 17251-438-000

$89.95 USD
73-0139
Replace your CB900, CB1000C, or CB1100F carb-to-air-box boots with this Carburetor to Air Box Rubber Boot Set of 4. Replaces OEM #17251-438-000 (qty 1),...
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1981 Honda CB900F Supersport · Intake Holders & Boots Buying guide

Two sides of the carburetors, two sets

The CB900F carburetors have rubber connections on both sides. The engine-side holders and airbox-side boots are separately shaped, position-specific sets. Inspect the joint that is leaking or hardened before choosing either package.

Parts to consider

1980-83 Honda CB1100F / CB1000C / CB900 Carb Holder Set ~ Replaces 16211-438-000 Engine-side holder setFour holders, references 16211-438-000 through 16214-438-000.View part 1980-83 Honda CB1100 / CB1000 / CB900 Carb Air Box Rubber Boot Set ~ Replaces 17251-438-000 Carb-to-airbox boot setFour boots, one each of 17251-438-000 through 17254-438-000.View part

Holder clamp requirements

For the engine-side holder set, the source specifies four 46–49mm clamps and four 50–52mm clamps when replacements are needed. Check the existing bands before deciding what to renew. Those sizes belong to the holder joints, not automatically to the airbox boots.

Airbox connections have their own bands

The airbox boot set specifies 60–65mm band clamps when new clamps are required. It contains four distinct boots, one for each listed reference. Match the pieces to the fitted airbox arrangement; a pod-filter conversion may no longer use these original-style connections.

Buying questions

Could hardened engine-side holders affect idle or synchronization?

A cracked or poorly seated holder can admit air at the engine-side joint. Inspect the rubber and clamp seating before trying to compensate with carburetor settings. The airbox boots are separate parts and should also be checked for secure seating.

Can I use the airbox-boot clamps on the engine-side holders?

The listed sizes differ: the holders call for four 46–49mm and four 50–52mm clamps, while the airbox boots call for 60–65mm bands. Inspect the fitted joints and use the specified size rather than forcing a larger clamp to suit.

Will these boots restore an intake that has been converted to pods?

Only if the matching airbox and original-style carburetor arrangement are also present. Confirm the installed components and keep the four position-specific boots identified. A boot set alone does not recreate missing or altered airbox parts.

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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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