1978 Honda CB750F Engine Rebuild Parts

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Honda CB750F CB750K countershaft sprocket oil seal 29.8 x 62 x 7 91205-405-005

1977-78 Honda CB750F / CB750K Countershaft Sprocket Oil Seal ~ 29.8 x 62 x 7 ~ Replaces 91205-405-005

$19.95 USD

Replace your countershaft sprocket oil seal with this Countershaft Sprocket Oil Seal, 29.8 x 62 x 7, replacing OEM #91205-405-005. High-quality, made in Japan.Key...

1969-78 Honda CB750 Cam Sprocket ~ Replaces 14321-392-000

$44.95 USD

Replace your cam sprocket with this Cam Sprocket, replacing OEM #14321-392-000 / #14321-300-010.Key Features• Cam sprocket• Replaces OEM #14321-392-000 / #14321-300-010• Honda part name:...

Honda CB750F steel rear sprocket 43 tooth x 630 type 41201-410-000

1977-78 Honda CB750F Steel Rear Sprocket ~ 43 Tooth X 630 Type ~ Replaces 41201-410-000

$64.95 USD

Replace your late-'70s CB750F Supersport rear sprocket with this Steel Rear Sprocket, 43 tooth, for 630 chain setup as came stock. Replaces OEM #41201-410-000.Please...

Honda CB750 engine oil seal kit made in japan with 7 seals 91205-405-005

1977-78 Honda CB750 Engine Oil Seal Kit

$34.95 USD

Seal up your 1977-78 CB750 rebuild with this 7-piece Engine Oil Seal Kit, superior OEM quality and made in Japan. Purpose-built for the late-'70s...

1969-78 Honda CB750 Chrome Kick Starter Shaft Cover ~ Joker Machine

$49.95 USD

Clean up your CB750 with this Joker Machine Brand Chrome Kick Starter Shaft Cover. Eliminates the heavy kick starter arm and cleans up the...

Honda CB750 CB450 CB400 CB360 CB77 valve guide clip 12211-250-310

Honda CB Valve Guide Clip ~ Replaces 12211-250-310

$1.95 USD

Replace your valve guide clip with this Valve Guide Clip, replacing OEM #12211-250-310.Sold each, order the quantity you require.Key Features• Valve guide clip• Replaces...

1969-78 Honda CB750 Black Kick Starter Shaft Cover ~ Joker Machine

$49.95 USD

Eliminate the heavy kick starter arm and clean up the look of the splined shaft with this Joker Machine Black Kick Starter Shaft Cover....

Honda CB750 valve rocker arm a 14431-300-030

1969-78 Honda CB750 Valve Rocker Arm A ~ Replaces 14431-300-030

$74.95 USD

Upgrade or restore your classic Honda motorcycle with this Valve Rocker Arm A — high‑quality replacement engineered and made in Japan. This component replaces...

Honda CB750 oil pump gasket 15135-300-010

1969-78 Honda CB750 Oil Pump Gasket ~ Replaces 15135-300-010

$6.60 USD

Replace your SOHC CB750 oil pump gasket with this Oil Pump Gasket, replacing OEM #15135-300-010.Key Features• Oil pump gasket• Replaces OEM #15135-300-010• Honda part...

Honda CB750 heavy duty BS05MH cam chain rivet link for 52-5010 cam chain

Heavy Duty BS05MH Cam Chain Rivet Link for 52-5010 Chain

$4.61 USD

Install your heavy-duty cam chain with this Heavy Duty Cam Chain Rivet Link, designed specifically for the BS05MH-spec chain. Used to complete installation of...

Honda CB750 valve rocker arm b 14432-300-030

1969-78 Honda CB750 Valve Rocker Arm B ~ Replaces 14432-300-030

$74.95 USD

Upgrade or restore your classic Honda motorcycle with this Valve Rocker Arm B — precision‑engineered and made in Japan. This high‑quality replacement is designed...

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1969-78 Honda CB750 Kibblewhite Performance Cylinder Head Nuts Pk/4

$44.95 USD

Upgrade your cylinder head fasteners with this Kibblewhite Performance Cylinder Head Nut 4-pack. High-strength premium steel with tight tolerances, heat-treated to a specific depth...

Kibblewhite black diamond exhaust valve for 1977-78 Honda CB750F

Kibblewhite 1977-78 Honda CB750F Black Diamond Exhaust Valve

$54.95 USD

Match your Black Diamond intake with this High-Performance Kibblewhite Black Diamond Exhaust Valve. Made in the USA by Kibblewhite, who bring over 75 years...

Honda CB750F std piston kit w rings and pin 13101-410-003

Piston Kit with Piston Rings and Pin ~ Standard Size (07-0188)

$69.95 USD

Upgrade or rebuild your classic Honda motorcycle engine with this Standard Size Piston Kit — complete with piston, piston rings, and piston pin. This...

1969-78 Honda CB750 Oil Tube Plug ~ Replaces 15337-300-010

$10.95 USD

Replace your oil tube plug with this Oil Tube Plug, replacing OEM #15337-300-010.Key Features• Oil tube plug• Replaces OEM #15337-300-010• Honda part name: Plug,...

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1969-78 Honda CB750 Joker Machine Oil Tank Mounting Bushing Set/3

$79.95 USD

Clean up your exposed stock oil tank with this Joker Machine Oil Tank Mounting Bushing Set of 3. Designed for builds running no oil...

Kibblewhite 1977-78 Honda CB750F valve spring set of 8

Kibblewhite 1977-78 Honda CB750F Valve Spring Set/8

$169.95 USD

Step up your CB750F's top-end performance with this High-Performance Kibblewhite Valve Spring Set of 8. Made in the USA by Kibblewhite, a specialist in...

Kibblewhite black diamond intake valve for 1977-78 Honda CB750F

Kibblewhite 1977-78 Honda CB750F Black Diamond Intake Valve

$54.95 USD

Take your CB750F's intake side to the next level with this High-Performance Kibblewhite Black Diamond Intake Valve. Made in the USA by Kibblewhite, drawing...

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1978 Honda CB750F · Engine Buying guide

Match each engine package to its assembly

The standard piston kit, shaft-seal set and oil-pump service kit cover different parts of the engine. Compare the named contents with the repair scope before combining a kit with individual parts.

Parts to consider

Piston Kit with Piston Rings and Pin ~ Standard Size (07-0188)

Standard-size piston packageKit 07-0188 is listed for the 1977–78 CB750F and supplies a standard-size piston, rings, pin and clips for one piston.View part

Seven-piece late-model oil-seal kitKit 01-9042 supplies seven named engine oil seals for the 1977–78 CB750F, including countershaft, clutch-arm, shift-shaft, crank, starting-clutch-gear, kickstart and tach-drive seals.View part

1969-78 Honda CB750 SOHC Oil Pump Rebuild Kit

Oil-pump service kitKit 73-1053 supplies eleven oil-pump service pieces and lists the 1975–78 CB750F application.View part

Check the internal part application

Piston kit 07-0188 and Black Diamond intake valve 01-9948 specifically name the 1977–78 Supersport. The linked cam-cover gasket 18-7003 has the broader 1969–78 SOHC CB750 application and reference 12391-300-306. Use each part’s own application when building the order.

Check the pump kit’s named service pieces

Kit 73-1053 contains an oil-stopper seal and spring, an oil-relief-valve spring and O-ring, three pump-connection O-rings, two inner-rotor O-rings, a steel-reinforced centre-shaft seal and a pump-body gasket. Compare that supplied assortment with the pump parts being renewed.

Engine service and rebuilding questions

How do oil-seal kits 01-9042 and 01-9018 differ?

The seven-piece 01-9042 kit includes the 29.8 × 62 × 7 countershaft seal, references 91205-405-005 and 91205-405-000. The broader eight-piece 01-9018 kit also includes the earlier 25 × 62 × 8 seal, reference 91205-300-005. Both list the 1977–78 CB750F with the later seal; the extra seal in 01-9018 is an alternative specification, rather than another sealing position on this engine.

What if the motorcycle has been converted to a 530 chain?

Front sprocket 23-0411 is specified for a 630 chain. Its supplier warns that 530 and 630 components cannot be mixed, so a matching tooth count alone is not enough: the front sprocket, rear sprocket and chain must use the same chain type. Confirm the fitted setup before choosing this 14-tooth part.

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