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  1. Wanted Parts and Bikes
    Hello all! Glad to have found this forum for help. I am a 20 year old college student who is absolutely in love with vintage Honda motorcycles. I purchased a 1974 CB450 about 2 months ago in rough shape, and have been slowly restoring it back as original as I possibly can. HOWEVER!!! After...
  2. Project Logs
    Hello all! Glad to have found this forum for help. I am a 20 year old college student who is absolutely in love with vintage Honda motorcycles. I purchased a 1974 CB450 about 2 months ago in rough shape, and have been slowly restoring it back as original as I possibly can. HOWEVER!!! After...
  3. Member Introductions
    Hello everyone! I've done things a bit out of order. I made a discussion post before doing an intro. So I'm going to back pedal and do that now. So I am a motorcycle enthusiasts, though my knowledge is probably lacking simply due to my little experience. But I am trying to learn as much as I...
  4. Fuel Supply and Carburation
    I just finished rebuilding the top end on my 72 CB450, new pistons, rings, gaskets, valves, sleeved cylinders, cams and cam followers repaired by Delta Cams. Bike fired up great, but I am now facing a carburetor issue. The idle is erratic, doesn't return to idle right away, after the bike...
  5. Bikes For Sale
    1971 Honda CB450 K4 Clean CA title in hand w/plate Everything inside the motor is original except fresh oil and gas. Almost everything exterior has been renewed or touched up. My list of upgrades include: new electrics (from stator to battery and everything in between) 4into1.com Rewound stator...
  6. Engine Discussion
    Hello all, After rebuilding the head on my cb450 I am having a run issue on the left side, it doesn’t want to run at an idle nearly as strong as the right. After swapping the carbs around and checking fuel flow, ignition timing, engine compression, etc. I’ve developed a theory that I have a...
  7. Miscellaneous Discussion
    Hello, been searching on the forumns for a while and haven't found an answer so I figured I'd ask here. I found a parts bike for sale, its a 1981 cm400c that has 1981 cb400c parts. I currently have a 1971 CB450, body type MC. Just wondering if parts like the handle bars, fenders, wheels and...
  8. Frame, Suspension and Steering
    Hi, I’m currently rebuilding a set of 1972 CB450 K5 front forks. However the damper rod part number 51430-323-020 doesn’t operate smoothly. I cannot find any replacement damper rods. Has anyone serviced the damper rods as I cannot see how to open them up. Any help would be greatly appreciated.
  9. Wanted Parts and Bikes
    Howdy! I'm on the hunt for a tank and left side panel for an 85 cb450sc nighthawk. Any help would be much appreciated. Thanks [email protected]
  10. Miscellaneous Discussion
    Dear Honda Twins Community, Chris Saxby who many of you may already know from this Forum has been providing valuable guidance over the lockdown period on my restoration of a 1966 Black Bomber. During this time I have also acquired a 1968 'Red' Ken Ives Bomber with its original Leicester Plate...
  11. Tires, Wheels, and Brakes
    Greetings, New to the world of vintage Hondas and I'm looking to pick some of your guys' brains about refurbishing and repair. To start, I've got a CB450 K6 that had a rear drum brake that was completely seized. I was trying to be careful with removing it, but the inner rim of the cover that...
  12. Bikes For Sale
    Hey everyone, I'm looking to sell my CB450. Just too many toys in the garage and she really needs a new home with someone who'll actually take her out for some rides around town. Currently listed on Facebook Marketplace. I'm in the Twin Cities if you'd like to meetup and see her in person. I'm...
  13. Fuel Supply and Carburation
    So I bought a 1982 CB450SC that ran like absolute garbage. One plug fouled out and the other insanely lean after a ride around the block. A little bit of inspection found gummed-up vacuum pistons and a plugged idle jet on the left carb. I tore everything apart and cleaned off the molasses and...
  14. Bikes For Sale
    https://www.facebook.com/marketplace/item/311677923309023/ On facebook market place. Open to trade OBO. Let me know.
  15. Member Introductions
    Hi all! I have my dad's 1986 Honda CB450SC I am attempting to get going again for him. Replaced the battery and now working on it not wanting to start. I think I found some answers already searching around. I am going to try disassembling the push start housing and cleaning the contacts and...
  16. Tires, Wheels, and Brakes
    Hello, I have a '73 CB450, currently trying to rebuild the front disc brake caliper. The issue is the piston–for the life of me I can't get it back in there. I've tried (per other posts) • obsessively cleaning the channel that the seal sits in, to ensure there's no debris • lubing the...
  17. Parts Guide
    Super newb to motorcycles and engines in general. Right carb has an outlet tube on the bottom that just empties to below the bike. Left carb has a nozzle in same place but no tube.. model is CB450 K7. what are these for and should the left carb have a tube here too? Seen aLot of diagrams and...
  18. Engine Discussion
    Two years ago my friend and I rebuilt my 70’ CB450 engine with the bottom end of 68’ CL450. It was riding pretty well for about a year (for the exception of some power loss). But about a year ago I went for a ride and while riding in 5th on the highway, the whole bike jerked like the clutch...
  19. Parts For Sale
    I have a bunch of parts leftover from a 1974 CB450 build, started off with 3 bikes so lots of leftovers. Would be great to help someone local who needs bits and pieces to complete something they are working on. Some parts have a value but others I’d be willing to unload for next to nothing...
  20. Tires, Wheels, and Brakes
    Just replaced the shoes for my rear brake and got the wheel installed back on the bike. After taking the bike off the jack, I noticed that the rear brake pedal had way too much range (~3 inches), so I just turned the adjustment bolt clockwise (in), which solved this problem. The range is now...
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