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  1. CB400A Hondamatic Triple clamp question

    Frame, Suspension and Steering
    Hey all, just bought my first bike today. It comes with odd bars, that are in the spacers of the upper triple clamps? sorry if it sounds confusing, still learning what to call every part. Here is a photo I got earlier. Now, I want to put scrambler bars on it, but how would that be possible? I...
  2. 1978 Honda CB750a Hondamatic

    1978 Honda CB750a Hondamatic

    My forever bike! Took years to find it. Hard bags from my 400a and a fresh paintjob. New shield, taillight and signals, LED lighting, voltmeter with USB, heated grips and swapped out the king and queen seat in the photo with an original found on ebay.
  3. 1979 Honda CM400a Hondamatic

    1979 Honda CM400a Hondamatic

    My second bike. Had original hard bags that I moved to the 750. Has a Vetter Quicksilver fairing
  4. 1978 Honda 750a Hondamatic

    1978 Honda 750a Hondamatic

  5. WTB: 1979 CM400A Carb Intake Insulators and Mufflers

    Wanted Parts and Bikes
    Hello, I replaced the carb intake insulators on my 79 CM400A a few years ago with some aftermarket ones from an ebay vendor and they're already getting pretty ratty. Does anyone have a good used set? I also need the left and right mufflers, both have holes in the bottom. Seems to be a common...
  6. New Member Introduction - Wil Robinson

    Member Introductions
    Hello Everybody, My name is William (Wil) Robinson and I am from Cinnaminson, NJ which is right across the bridge from Philadelphia. I am 22 years old and currently work as a support desk technician at a law firm in Center City Philadelphia. As soon as I turned 15 I bought a Tomos moped and...
  7. Hondamatic 450 for touring?

    Miscellaneous Discussion
    Hi all! I've been really interested in a 1983 CM450A I found locally; does this bike have enough get up and go to sustain highway speeds (75-85mph) for extended periods? I've never ran an air-cooled bike before, so I'm not sure how hard it's pushed by riding hard. All of mine have been much...
  8. Greetings from Orlando

    Member Introductions
    Hi everyone. A little over month ago I became the 3rd owner of a 1978 CB400A Hondamatic Hawk in Tahitian Red. It had +/- 4700 miles on the clock, but according to the seller, hadn't been started up since 1992. It had obviously been somewhat protected from the elements, because although it had...
  9. 1978 cb400a for sale

    Bikes For Sale
    Selling my Hondamatic. (Unless someone has a free working engine laying around? ;) Text the number in the link if you're interested.
  10. 1979 Hondamatic (CM 400A) front brake hardware

    Tires, Wheels, and Brakes
    Last summer it was a rebuild on the carbs. I’m still having leaking issues somewhere there but for now am happy the machine is running well....which leads to this summer’s task: the front brake master cylinder is completely seized up, the lever is stuck, and the whole thing needs to be replaced...
  11. Hello from Queens, NY! New to riding, just bought a mint 1978 Hondamatic CB400A

    Member Introductions
    Hey everyone, My name is David and I'm new to this forum and new to riding a motorcycle in general. I figured a bike like the CB400A would be a great starter bike for me and bought one off of Craigslist for a great deal! If there are other Hondamatic owners in the area, please let me know! I...
  12. '78 CB400a - Project Step Up

    Project Logs
    Just a quick intro about this project I've undertaken. I came into a 1978 CB400a through a family member recently. It's been in a basement for at least the past 10 years and the odometer shows 850 miles. As the story goes, said family member acquired this bike plus a second identical bike from a...
  13. Hondamatic gear indicator instrument service advice

    Electrical Discussion
    Inside the unit there is a lense with N 1 2. This lense and its bezel are rattling around inside this sealed unit. It doesn't appear serviceable. Is it? Mine looks better than the rusty bits I've seen online so I'm considering a fix. Do you have one to swap or sell? PayPal ready! So...
  14. WANTED: quarter fairing for cm400a

    Wanted Parts and Bikes
    im currently working out the kinks in an electrical issue, if the bike pulls through id really like to get a quarter fairing in either black or red that would fit the bike. Cant get enough of that look. If you have something just post a pic and your asking price, or PM :cool: Thanks fellas!
  15. cm400a wont turn over (vid included)

    Engine Discussion
    Ironically enough two weeks after inspection bike has problems haha. The video pretty much says it. Regardless of kickstart or battery start it refuses to turn over. Try your best not to get jealous by my dog-chewed work sneakers :D It's been running fine all month, last ride was 3 days...
  16. For sale: 1979 cm400a

    Bikes For Sale
    Nice original equipment 1979 CM400a, runs good, shifts good, has new battery,new plugs, oil change and filter. only 1,500 miles. New set of tires,backrest, luggage rack. Asking $1100. Need garage space
  17. 1979 CM400A - What to look at first?

    Engine Discussion
    I recently got a 1979 Honda CM400A, mostly for my wife to learn to ride on, but also because I love the look and the Hondamatics always seemed cool.... Anyway...the previous owner had a meticulous garage full of all sorts of vehicles and was doing maintenance on several when I arrived for...
  18. You wanted an intro, here's your intro!

    Member Introductions
    Name's Danny.20. Student. Pittsburgh. I grew up in the city but always loved bikes, knew nothing about them, no one in my family rides so it wasn't an inheritance thing. I just always thought they were the coolest things in the world. I also always loved to drive things, I was the opposite of...
  19. 1980 Hondamatic cm400 stalls at idle + hiss-rattle sound when declerating?

    Engine Discussion
    First post so bear with me here, browsing the forums I think its better to give too much info than not enough so that's what I plan to do: I've had the bike for just over a year now. Here's the most recent work I've had done on it: two months ago I had the following done: -New exhaust pipe...
  20. 1978 Honda Hawk CB400A Hondamatic Owner's Manual (PDF)

    Manuals and Technical Documents
    I've been looking for a Owner's Manual for my 1978 CB400A for a long time now and I finally found it. I found this on a Yahoo! group in individual JPGs and combined into a PDF. MEGA link (PDF ~26MB):!65QSCRpR!OWeN_FMzw5X5Y272j3y9TOVJo_fdvS-4sdIgsSUKzAY Here is also an Imgur...