Honda DOHC Parts

Honda CB750 900 1100 DOHC

Through a modern lens, it is hard to grasp how truly revolutionary the four-valve, DOHC-4 CB750F was when Honda unleashed it in 1979. While other manufacturers had toyed with the dual-overhead cam concept in a transverse four prior to the now-classic CB, Honda perfected it. This one motorcycle heralded an age of performance innovations that birthed an entire class (pure sport) of modern motorcycles.

In the late 1970s, no one thought a four-cylinder engine could ever compete with bikes like Ducati’s 900SS on the track on in drag-peg canyon twisties. The Duck was made to bank, and its L-twin 67-horsepower engine was so centrally situated that no four-pot could, or would, ever compete with it. In 1979, Honda made everyone eat crow.

The CB750F was not only the equal of the 900SS, it surpassed on-track and in the really real world of the streets. Its chassis was superbly stiff, and its three disc brakes could halt it even at hyper speed. It steered lightly, and its power (75 horses) was on par with the 1000cc bikes the other Japanese manufacturers were turning out. The perfectly square engine (62mm stroke and bore) produced a beautiful marriage between engine width and surface area for its four valves.

The F designation was first placed on the SOHC CB750 in 1975, signifying sport-inspired styling and lighter engine components like the flywheel and crankshaft. With the DOHC, the sport bike was truly born. So complete was its dominance from the time it was introduced, that the DOHC in-line transverse four-cylinder engine still dominates the sport category well into the 21st century.

Honda utilized the DOHC-4 in the CB750K and the CB900F, both of which hit dealer floors in 1979 as well. The K series 750 was a more docile version of the CB750F, without the Super Sport version’s flair for dramatics, but the CB900F was a beast — as in 95 horsepower at the crank and 57 foot pounds of torque, that kind of beast. It sold well, but the CB900F lacked the handling prowess of its little sister. In 1983, though, Honda summoned a demon.

The 110-horsepower CB1100F was a cruise missile. Rarely does the word flickable get used in reference to a better-than-liter-sized bike, but motorcycle journalists of the time used exactly that word to describe the CB1100F, which steered like a bike of half its displacement. Honda achieved this minor miracle by placing the DOHC-4 1100 engine in the previous CB900F frame. It handled magnificently in its new skin, but not perfectly. Care had to be exercised in cornering to keep the tires hooked up with the tarmac, but on exit the CB1100F was in its element. During more subdued riding, its prodigious but flat torque curve meant the rider had no need to fiddle with the shift lever. The 1100F was rideable in almost any gear, at almost any (legal) speed.

The DOHC-4 Hondas were ahead of their time and at the head of the class. The lap times and quarter-mile numbers they produced would be respectable today, but they were ridiculous in their era. Honda had set a bar with these machines that would move only incrementally over the next three-plus decades.

Randakk’s is a superb source for vintage Honda performance parts and components. We proudly stock vintage Honda DOHC-4 engine and carburetor parts, suspension and brake components, electrical parts, filters, grips and various performance and reproduction parts for DOHC-4 Hondas.

Every Honda part that you see on Randakk’s is in-stock in our warehouse. Normally, orders ship within 24 hours of completion, and we ship to any of the 50 states and more than 50 countries. Our mission is simple: to help preserve and improve classic Hondas. When you begin your vintage Honda DOHC-4 restoration, Randakk’s has your OEM-style and reproduction Honda parts. Randakk’s is here to provide the maintenance parts your Honda needs. Mile after mile, we’re in it for the long haul. 

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  1. Standard Float Post Repair Kit - Version D - Float Pivot Post Repair Kit (DOHC-4)
    Part #
    100-1116
    Also available: Deluxe Float Post Repair Kit for GL1000 carbs. Testimonials: "Hi Randall, I have installed the CBX float pivot post repair kit you sent; nice easy fix & all well. Many thanks for a great product. Best. " Dave Hallam - Auckland New Zealand "Just wanted to say thanks for manufactu... 
  2. Dyna 2000 w/Coils DDK1-5C CB750/900/1000/1100
    Part #
    DYDDK1-5C
    The Dyna 2000 electronic ignition kit with coils for 1979 to 1983 Honda CB750- CB900- & CB1100 4 cylinder motorcycles is a microprocessor controlled ignition with adjustable dual crank sensors. This system provides simple switch settings to control multiple ignition advance or retard modes and rev limits. NEW: Dynatek... 
    • Out of stock
  3. DOHC-4 Intake Rubber Boots (aka Carb Holders...NOT included in Master Kit) - Set of 4
    Part #
    100-1159
    Tired of wrestling with decades old, hard-as-a-rock intake rubber boots (aka "carb holders") when you remove/install your DOHC-4 carbs? Do you fear this gruesome task and worry about damaging your carefully rebuilt carbs? If so, here is the answer. These high quality reproduction intake rubbers for DOHC-4 models are m... 
    • Out of stock
  4. Float Pin Removal Tool
    Part #
    100-1147
    Another Randakk Exclusive!This clever tool helps remove stubborn float pins with less risk of breaking the float pin posts (stanchions), so you won??t need one of my float post repair kits! Created by my friend Bob Hagerman, these tools are made of hardened steel and will last a lifetime. Randakk's Float Pin Removal To... 
  5. Upgraded Front Master Cylinder - Version B - 14mm Piston
    Part #
    100-1166
    A and B Versions now available to fit a wide range of motorcycles: Front Master Cylinder VersionFitment Chart Summary of Models CoveredA - 5/8 inch PistonTypical model coverage: Appropriate for most motorcycles with two (2) front brake rotors:Honda GL1000 Honda GL1100 Honda DOHC4 models Honda CBXB - 14 mm PistonTypical... 
  6.  Standard Oil Filter Conversion Kit
    Part #
    100-1151
    This well-engineered conversion kit allows the use of auto spin-on oil filters and makes oil changing a joy! Beautifully crafted by Huntech. Say good-bye to the messy OEM oil filter canister and cartridge. One less excuse not to change your oil! Filter sold separately - be sure to purchase a supply of these when you... 
    • Out of stock
  7. Standard Float Post Repair Kit  - Version D - Additional Float Pivot Posts (DOHC-4)
    Part #
    100-1120
    Also available: Deluxe Float Post Repair Kit for GL1000 carbs. Testimonials: "Hi Randall, I have installed the CBX float pivot post repair kit you sent; nice easy fix & all well. Many thanks for a great product. Best. " Dave Hallam - Auckland New Zealand "Just wanted to say thanks for manufactu... 
  8. High Performance Fuel Filter
    Part #
    100-1149
    Filter Testing at Virginia International Raceway on RC-003 Filter Inlet/Outlet Size Filter Fitment Models 1/4 inch All Honda GL1000s All Honda GL1100s Honda GL1200: All '84-'85 models and most '86 models depending on original market destination. Early DOHC-4 models. Early CBX models. Any other c... 
  9. Honda DOHC-4- Randakk Master Carb Overhaul Kit® Version B
    Part #
    100-1224
    Randakk Master Carb Overhaul Kit for Honda DOHC - 4 Models WORLD'S BEST DOHC - 4 KIT! Version Models Year Version A DOHC - 4 Master Carb Overhaul Kit CB 750 K CB 750 F Supersport CB 750 L LTD '79 '79 '79 Version B DOHC - 4 Master Carb Overhaul K... 
  10. Randakk's Gen II Amazing Grips
    Part #
    100-1181
    If you favor chrome and foam grips with tassels, read no further - these are not for you. But if you're a serious rider, these are simply the best grips available. Great for discriminating riders of any motorcycle with 7/8" bars requiring "standard" length grips: 5" - 5 1/2"Developed for experienced riders wh... 
  11. Randakk's DOHC Four Master Carb Overhaul Kit
    Part #
    100-1223
    Randakk Master Carb Overhaul Kit? for Honda DOHC - 4 Models WORLD'S BEST DOHC - 4 KIT! Version Models Year Version A DOHC - 4 Master Carb Overhaul Kit CB 750 K CB 750 F Supersport CB 750 L LTD '79 '79 '79 Version B DOHC - 4 Master Carb Overhaul Kit... 
  12.  Randakk's Upgraded Front Master Cylinder
    Part #
    100-1167
    A and B Versions now available to fit a wide range of motorcycles: Front Master Cylinder VersionFitment Chart Summary of Models CoveredA - 5/8 inch PistonTypical model coverage: Appropriate for most motorcycles with two (2) front brake rotors:Honda GL1000 Honda GL1100 Honda DOHC4 models Honda CBXB - 14 mm PistonTypical... 
    • Out of stock
  13. Oil Filter Kawasaki Honda KZ1000 KZ650 CB900 CB750
    Part #
    BAHF401
    HF401 Hi-Flo Brand. Equivalent to OEM: 15412-300-024 15410-422-000 15410-426-000 15410-426-010 16099-003. Equivalent to 10-20300Fits Honda CB350F CB400F CB500 Four CB550K/F/SC CB650/C/SC CB750K/F/A/L/C/SC CB900C/F GL1000/L CBX1050 GL1100/A/I CB1000C CB1100F GL1200/A/I/L/SE Fits Kawasaki EL250-B2/B3 (Eliminator) (... 
  14. DOHC Four Float Bowl Drain Screws
    Part #
    100-1199
    Nice reproductions in brass at an attractive price. Orings included.DOHC - 4 Float Bowl Drain Screws Orings included.DOHC - 4 Float Bowl Drain ScrewsNote: I'm selling these only in a set of 4 float bowl drain screws.Note: These fit all DOHC - 4 models listed in the Model Identification chart here.Note: These also fit l... 
  15. Honda DOHC-4- Randakk Master Carb Overhaul Kit® Version C
    Part #
    100-1225
    Randakk Master Carb Overhaul Kit for Honda DOHC - 4 Models WORLD'S BEST DOHC - 4 KIT! Version Models Year Version A DOHC - 4 Master Carb Overhaul Kit CB 750 K CB 750 F Supersport CB 750 L LTD '79 '79 '79 Version B DOHC - 4 Master Carb Overhaul K... 
  16. Honda DOHC-4 - Randakk Master Carb Overhaul Kit® Version D
    Part #
    100-1226
    Randakk Master Carb Overhaul Kit for Honda DOHC - 4 Models WORLD'S BEST DOHC - 4 KIT! Version Models Year Version A DOHC - 4 Master Carb Overhaul Kit CB 750 K CB 750 F Supersport CB 750 L LTD '79 '79 '79 Version B DOHC - 4 Master Carb Overhaul K... 
  17. High Performance Fuel Filter - 5/16 Inch Inlet/Outlet
    Part #
    100-1150
    Filter Testing at Virginia International Raceway on RC-003 Filter Inlet/Outlet Size Filter Fitment Models 1/4 inch All Honda GL1000s All Honda GL1100s Honda GL1200: All '84-'85 models and most '86 models depending on original market destination. Early DOHC-4 models. Early CBX models. Any other c... 
  18. DOHC Four Float Bowl Gaskets
    Part #
    100-1204
    Highest quality DOHC - 4 Float Bowl Gasket Set DOHC - 4 Float Bowl Gaskets - Set of 4 Fits all the DOHC models listed here.Constructed of superior Viton material to resist the components of modern gasoline.Randakk exclusive - I also include the very necessary accelerator pump passage oring (5.0 x 1.3 mm - Viton) wit... 
  19. Valve Bucket- Shim Under- CB750 CB900 CB1100
    Part #
    KI30-1020
    Valve Bucket shim under Bucket Style - Honda Fits Honda CB750C/F/K/SC 1979-83 DOHC CB900F CB1000F CB1100F 1980-83 Requires use of Kibblewhite valve spring retainers. Ensures shims cannot come out at high RPM or with high-lift cams. Keywords: tappet 
  20. DOHC Float Pins - Honda
    Part #
    100-1205
    RANDAKK EXCLUSIVE!!! IMPOSSIBLE TO FIND ANYWHERE ELSE, FROM ANYBODY, AT ANY PRICE UNTIL NOW...THESE ARE NEW! Up until now, float pins have been available only from Honda as part of a "Float Set" which includes the float. The Honda part number for the DOHC float set is: 16013-679-005 which currently lists... 
  21. Monza Shock Absorber Set 12 3/4" (325mm) eye to eye
    Part #
    06-3607
    Shock Absorber Set - (Monza Traditional) Dual Progressive wound Chrome Springs & Long Black top shroud with black shock body. 12 3/4" (324mm.) eye to eye., Includes preload wrench & multiple sizes of eye rubbers. 325mm Eye to eye  is standard size for: Yamaha RD400 1976-79, XS400 1977-81, SR500 1978-81... 
  22. FUSE F (30A) - Honda
    Part #
    98200-53000
    Honda 30 AMP (F) type Fuse 
  23. Fr M/C Reservoir Kit GL1100 CBX CB900 CB750 CX500
    Part #
    KL32-8047
    Equivalent to OEM: 45511-MA5-671 45520-MA5-672 45513-MA5-671 45516-166-006 93600-04045-1G- Fits the master cylinder for the following bikes - GL1100/A/I (82-83) CBX (81-82) CB900C (82) CB900F (81-82) CB750SC (82-83) CB750C/F/K (81-82) CB650SC (82) CB650C (81) CB650 (81-82) GL500/I (81-82) CX500TC (82) CX500C/D (81-82)... 
  24. Auxiliary Gas Tank
    Part #
    TU03-1500
    This impact resistant- graduated tank takes the place of the original gas tank while performing carb synchronizing. Includes four feet of 1/4" fuel line and brass petcock. Suggestion: look for a used hospital or doctors office IV stand.  These come with 4 or 5 wheels on a weighted base, telescoping stand, and cur... 
  25. Handlebar Grip Adhesive ThreeBond Griplock Glue
    Part #
    TU53-0427
    1oz tube - use this ThreeBond adhesive to ensure your grips do not twist or slip on the handlebars. Keyword: TB1501C Glue 
  26. Switch - Oil Pressure - CB750 - CX500 - CBX - GL1000 - GL1100
    Part #
    KL21-1463
    Oil Pressure Switch.  Equivalent to OEM: 37240-P13-013 Fits the following Honda motorycles: CB400 1978-1981 CM400 1979-1981 CX500 1978-1981 GL500 1981 CB550 1976-1978 CB650 1979-1982 CB750 1976-1983 CB900 1980-1982 CBX 1979-1982 GL1000 1976-1979 GL1100 1980-1981 VF1000 1984-1986 
  27. Clamp - Stainless Steel - 50mm x 9mm
    Part #
    100-1502
    Clamp - Stepless Screw - 50mm x 9mm.  Stainless Steel.  Sold individually.  Equivalent to OEM: 16223-KS5-000 - Insulator / Carb Holder Band The Oetiker Stepless Screw Clamp has a precise tongue-in-groove (stepless) design which provides a smooth inner band circumference with no steps or gaps, guar... 
  28. Clamps - Stainless Steel - 60mm x 9mm
    Part #
    100-1503
    Clamps - Stepless Screw - 60mm x 9mm.  Stainless Steel.  Sold individually.  Equivalent to OEM: 16219-422-000 95018-54250 - insulator / carb holder band The Oetiker Stepless Screw Clamp has a precise tongue-in-groove (stepless) design which provides a smooth inner band circumference with no s... 
  29. Clamp - Stainless Steel - 65mm x 9mm
    Part #
    100-1504
    Clamp - Stepless Screw - 65mm x 9mm.  Stainless Steel.  Sold individually.  Equivalent to OEM: 95018-60250 Air Cleaner / Airbox Hose Band The Oetiker Stepless Screw Clamp has a precise tongue-in-groove (stepless) design which provides a smooth inner band circumference with no steps or gaps, guaran... 
  30. Starter Motor - CB750 - CB900 - CB1100
    Part #
    TU86-4569
    Starter Motor - 4-Brush, permanent magnet Fits Honda: CB750 1979-1983 CB900 1980-1982 CB1000 1983 CB1100 1983 
  31. Valve Shim Kit 25mm
    Part #
    KL13-7005
    Valve Shim Kit 25mm. Contains 2 of the following shims 2.30 2.40 2.50 2.55 2.60 2.70 2.80 2.90 3.00 3.10 Fits Honda CB750C/F/K/SC CB900C CB1000C CB1100F CBX Fits Yamaha SRX250T/TC XT250L/LC TT350/XT350 XJ600 XVZ12/XVZ13 VMX FJ1100 FJ12View Technical Documentation 
  32. Valve Shim 25mm 2.85mm
    Part #
    KL13-7627-1
    -SOLD INDIVIDUALLY Valve Shim 25mm 2.85mm. Fits Honda CB750C/F/K/SC CB900C CB1000C CB1100F CBX Fits Yamaha SRX250T/TC XT250L/LC TT350/XT350 XJ600 XVZ12/XVZ13 VMX FJ1100 FJ1200 XVZ1300View Technical Documentation 
  33. Valve Shim 25mm 3.00mm
    Part #
    KL13-7630-1
    -SOLD INDIVIDUALLY Valve Shim 25mm 3.00mm. Fits Honda CB750C/F/K/SC CB900C CB1000C CB1100F CBX Fits Yamaha SRX250T/TC XT250L/LC TT350/XT350 XJ600 XVZ12/XVZ13 VMX FJ1100 FJ1200 XVZ1300View Technical Documentation 
  34. Valve Shim 25mm 2.95mm
    Part #
    KL13-7629-1
    -SOLD INDIVIDUALLY Valve Shim 25mm 2.95mm. Fits Honda CB750C/F/K/SC CB900C CB1000C CB1100F CBX Fits Yamaha SRX250T/TC XT250L/LC TT350/XT350 XJ600 XVZ12/XVZ13 VMX FJ1100 FJ1200 XVZ1300View Technical Documentation 
  35. Valve Shim 25mm 2.90mm
    Part #
    KL13-7628-1
    -SOLD INDIVIDUALLY Valve Shim 25mm 2.90mm. Fits Honda CB750C/F/K/SC CB900C CB1000C CB1100F CBX Fits Yamaha SRX250T/TC XT250L/LC TT350/XT350 XJ600 XVZ12/XVZ13 VMX FJ1100 FJ1200 XVZ1300View Technical Documentation 
  36. Valve Shim 25mm 3.10mm
    Part #
    KL13-7632-1
    -SOLD INDIVIDUALLY Valve Shim 25mm 3.10mm. Fits Honda CB750C/F/K/SC CB900C CB1000C CB1100F CBX Fits Yamaha SRX250T/TC XT250L/LC TT350/XT350 XJ600 XVZ12/XVZ13 VMX FJ1100 FJ1200 XVZ1300View Technical Documentation 
  37. Valve Shim 25mm 2.80mm
    Part #
    KL13-7626-1
    -SOLD INDIVIDUALLY Valve Shim 25mm 2.80mm. Fits Honda CB750C/F/K/SC CB900C CB1000C CB1100F CBX Fits Yamaha SRX250T/TC XT250L/LC TT350/XT350 XJ600 XVZ12/XVZ13 VMX FJ1100 FJ1200 XVZ1300View Technical Documentation 
  38. Valve Shim 25mm 2.75mm
    Part #
    KL13-7625-1
    -SOLD INDIVIDUALLY- Valve Shim 25mm 2.75mm. Fits Honda CB750C/F/K/SC CB900C CB1000C CB1100F CBX Fits Yamaha SRX250T/TC XT250L/LC TT350/XT350 XJ600 XVZ12/XVZ13 VMX FJ1100 FJ1200 XVZ1300View Technical Documentation 
    • Out of stock
  39. Valve Shim Changing Tool Honda
    Part #
    TU15-0431
    Valve Shim Changing Tool - Fits Honda CB750/900/CBX 
  40. Valve Shim 25mm 2.70mm
    Part #
    KL13-7624-1
    -SOLD INDIVIDUALLY Valve Shim 25mm 2.70mm. Fits Honda CB750C/F/K/SC CB900C CB1000C CB1100F CBX Fits Yamaha SRX250T/TC XT250L/LC TT350/XT350 XJ600 XVZ12/XVZ13 VMX FJ1100 FJ1200 XVZ1300View Technical Documentation 
  41. Valve Shim 25mm 2.65mm
    Part #
    KL13-7623-1
    -SOLD INDIVIDUALLY Valve Shim 25mm 2.65mm. Fits Honda CB750C/F/K/SC CB900C CB1000C CB1100F CBX Fits Yamaha SRX250T/TC XT250L/LC TT350/XT350 XJ600 XVZ12/XVZ13 VMX FJ1100 FJ1200 XVZ1300View Technical Documentation 
  42. Damper, Primary Shaft set of 8, Fits 1979 - 1983 Honda's
    Part #
    100-1619
    Damper, Primary Shaft set of 8 Fits: 1979 - 1983 Honda's.  CB750F, CB750K, CB750L, CB750C, CB750SC, CB900C, CB900F, CB1000C, CB1100F This critical part is No Longer Available from Honda! Our manufacturer used exact specifications and materials, which means that they are BETTER than new old stock (NOS) because t... 
  43. Valve Shim 25mm 2.60mm
    Part #
    KL13-7622-1
    -SOLD INDIVIDUALLY Valve Shim 25mm 2.60mm. Fits Honda CB750C/F/K/SC CB900C CB1000C CB1100F CBX Fits Yamaha SRX250T/TC XT250L/LC TT350/XT350 XJ600 XVZ12/XVZ13 VMX FJ1100 FJ1200 XVZ1300View Technical Documentation 
  44. Valve Shim 25mm 2.55mm
    Part #
    KL13-7529-1
    -SOLD INDIVIDUALLY Valve Shim 25mm 2.55mm. Fits Honda CB750C/F/K/SC CB900C CB1000C CB1100F CBX Fits Yamaha SRX250T/TC XT250L/LC TT350/XT350 XJ600 XVZ12/XVZ13 VMX FJ1100 FJ1200 XVZ1300View Technical Documentation 
  45. Valve Shim 25mm 2.50mm
    Part #
    KL13-7528-1
    -SOLD INDIVIDUALLY Valve Shim 25mm 2.50. Fits Honda CB750C/F/K/SC CB900C CB1000C CB1100F CBX Fits Yamaha SRX250T/TC XT250L/LC TT350/XT350 XJ600 XVZ12/XVZ13 VMX FJ1100 FJ1200 XVZ1300View Technical Documentation 
  46. Valve Shim 25mm 2.45mm
    Part #
    KL13-7527-1
    -SOLD INDIVIDUALLY Valve Shim 25mm 2.45mm. Fits Honda CB750C/F/K/SC CB900C CB1000C CB1100F CBX Fits Yamaha SRX250T/TC XT250L/LC TT350/XT350 XJ600 XVZ12/XVZ13 VMX FJ1100 FJ1200 XVZ1300View Technical Documentation 
  47. Valve Shim 25mm 2.40mm
    Part #
    KL13-7526-1
    -SOLD INDIVIDUALLY Valve Shim 25mm 2.40mm. Fits Honda CB750C/F/K/SC CB900C CB1000C CB1100F CBX Fits Yamaha SRX250T/TC XT250L/LC TT350/XT350 XJ600 XVZ12/XVZ13 VMX FJ1100 FJ1200 XVZ1300View Technical Documentation 
  48. Valve Shim 25mm 2.35mm
    Part #
    KL13-7525-1
    -SOLD INDIVIDUALLY Valve Shim 25mm 2.35mm. Fits Honda CB750C/F/K/SC CB900C CB1000C CB1100F CBX Fits Yamaha SRX250T/TC XT250L/LC TT350/XT350 XJ600 XVZ12/XVZ13 VMX FJ1100 FJ1200 XVZ1300View Technical Documentation 
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