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  1. 1981 CM400C Gear Shift Lever

    Engine Discussion
    So I was able to score this bike for free and it runs really well. It has been my commuter for a few weeks now. Well today I was riding to work and went change gears and the shift lever was GONE. I was able to pull off the to the side of the road and search for it. Long story short I found the...
  2. 81 Cm400c Fuel Tank/Mount Measurments?

    Miscellaneous Discussion
    Anyone know the measurements for the CM400c tank/mounts?? I haven't had the chance to remove mine yet and I am trying to research alternate tanks that I can possibly use. Thanks in advance!
  3. CM400 doesn´t want to fire up

    Engine Discussion
    Dear all, I am new here on the forum, so first let me thank to everybody who keeps such a nice Honda comunity up and running. It´s great that one can read what other is proud of. I am proud owner of my first Honda, CM400 custom, just recently bought it from Germany and import it into Czech...
  4. Howdy

    Member Introductions
    Hi all! Greetings and kind regards from Chattanooga, TN. I've had my bikes for awhile, and while I have perused the forum, I have not yet contributed. I'm here to amend that with a pile of project bikes! I have a love/hate feeling about doing my own motorcycle repair, as I have screwed it up...
  5. Honda CM400C - Neutral Light Issue...

    Electrical Discussion
    Honda CM400C - Neutral Light Issue (SOLVED) Hi All, I'm wondering if anyone can help point me in the direction of some troubleshooting tips. Long story short.. I bought a Honda CM400C in 2015 as my first project bike. Everything was removed from the bike until in was in 100's of pieces! Over...
  6. '81 CM400C Brake Line question

    Tires, Wheels, and Brakes
    I would like to upgrade to a stainless line, but the only ones I can find online range from 18"-34". I measured mine at 48". Is that right? I cannot find one that long to save my life. I'm new to this, so I'm learning more and more each day.
  7. Wanted: left side cover 1981 CM400C good, original condition

    Wanted Parts and Bikes
    I know this is a bit of a longshot, but I'm giving it a go. I've got a 1981 CM400 Custom, midnight blue with lighter blue inset color. When I bought it the left side cover was just the darker blue/no decal. I'm putting it out there that I'm looking for a left side cover *with* the decal. I know...
  8. Ohio Newby

    Member Introductions
    Hi. Im new to motorcycles & riding but loving it so far. Im in Columbus, Ohio. I just got my first bike about 3 months ago, a 81 Honda Cm400 Custom. I've been doing minor repairs to make it road ready, and it finally is. Just finished my basic rider course and i'm ready for summer!
  9. '81 CM400C Front brake issues - loss of brake transition

    Tires, Wheels, and Brakes
    I recently (last month) replaced my front brake rotor and upgraded my brake line to braided steel. I had rebuilt the caliper and replaced both pistons in March or April of this year. Everything seemed great, brakes were preforming better, definitely less "spongy." On my last ride, I noticed...
  10. Clacking metallic sound coming from '81 CM400C

    Engine Discussion
    Hi everyone, I'm having some disturbing sounds coming out of my bike and it seems to be getting worse. There is a high speed/high frequency clacking and almost sometimes grindy metallic sound coming from my '81 CM400C that I recently got (this is my first Honda). It was fine for the first...
  11. Newbie from South Carolina

    Member Introductions
    I am a new member from Sumter, SC. I joined about a week ago and picked up my bike this weekend. It's a 1981 Honda CM400 Custom with a little over 6700 miles. PIcked it up yeterday, but it was raining so I didn't get to ride much, just around the block a time or two. Just got back from DMV and...
  12. First bike, first project

    Project Logs
    Just bought an 81 CM400 from doofus in gathersburg. ( you can read about it in the introductions forum, called "the cobobulation of a doofus") I brought it home and then decided where I should start first. The carbs. I took off the tank and the seat. Looked at the stupid pods took those off then...
  13. MD: 81 CM400C seat etc. for sale

    Bikes and Parts For sale
    I have a few OEM parts I'd like to sell Seat Luggage rack Original bars Sissy bar backrest with luggage rack Leather on seat and backrest are in great shape no rips I have pictures but I don't know how to upload them!! Best offer takes it 410.961.6121 Located in Baltimore, MD cannot meet out of...