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cm400t
1-20 of 69 Results
  1. Frame, Suspension and Steering
    Hey dudes, I'm new around here. I come looking for an answer to a question I have. The handlebar/steering bushings in my CM400T are way too soft. I replaced them with OEM rubber bushings and still too soft for me. I have the dimensions of the bushings, but where should I look for polyurethane...
  2. Fuel Supply and Carburation
    I recently was gifted a 81 CM400T for my first bike. Its in great condition but the tank is filled with rust and there is a ton of holes and poor repair jobs all along the bottom of the tank seams. Can anyone help me with where I could get a new tank that doesn't require a lot of work to make...
  3. Engine Discussion
    Hi everyone, This is my first post here. I recently bought a 1981 CM400T. However, I've hit a massive roadblock and may now have a lemon on my hands. When I was attempting to change the oil filter, I found that the bolt hole for the filter and cover assembly is totally stripped, probably...
  4. Project Logs
    Hello! I don't know much about motorcycles other than how to ride them. If you feel so inclined to help out, it'd be greatly appreciated! ***Update 5/22/21 Checked my engine oil last night and it is a creamy tan color.(n) Luckily I haven't tried to cycle the engine so I'm hoping it's just...
  5. Mechanical Issues
    Hello All, I have a 1980 Honda CM400T and I just took the engine apart to replace all the gaskets. After reassembling the engine, I got to the last portion of tightening down the piston cover bolts. (12 & 10 in the image provided) They require a torque wrench, but I stupidly decided to tighten...
  6. Engine Discussion
    Hello, smarter individuals than I. I picked up an 1980 CM400T about a year and a half ago and after a long time of putting it off, I am finally ready to fix it up. I started the tear-down process but was just curious about a problem I was running into pre-tear-down. When I insert the key into...
  7. Fuel Supply and Carburation
    Just looking for a bit more in depth or a video if anyone has a link on these 3 areas, what order the diaphragm, spring and o ring go in, what order or orientation the plunger goes in, the one next to the right float bowl, circled in the pic. and an area i consistently have trouble remembering...
  8. Electrical Issues
    Hey, I have a 1981 Honda CM400T, i hadnt run it for about 2 weeks (just busy) then a few days ago went to start it and nothing. I push the starter button and not a single sound is made, no turning over, no solenoid click, but the headlight dims as well as ignition lights. I am able to bump...
  9. Engine Discussion
    Head gasket is leaking and the leak is accelerating to the point where I can't ignore it any more. Maybe the gasket between the cylinder and the crankcase, too. I want to replace those, and I figure if I start pulling gaskets off I gotta put all new ones in when I put it back together. I do have...
  10. Miscellaneous Discussion
    I'm looking for recommendation for replacement sprockets for a 81 CM200T looking to get a little more top end speed out of the small 200 with 4 speed gear box? Any recommendation?
  11. Member Introductions
    Hello all, As the title says, i've followed a lot of tech advice and general discussions on this site for a while and decided it was time to finally do this properly and join. This year i purchased my 2nd (and 3rd) bike and it's been a challange but a fun one. I live in upstate NY so the riding...
  12. Electrical Discussion
    I'm took my CM400t completely apart. Every nut and bolt. Good or bad, here I am. But, as a matter of course, I am rebuilding and repairing everything as I put it back on. I bought a rebuild kit for the starter and am replacing springs, brushes, gaskets, bushings, etc. but I noticed a problem...
  13. Non-Model Specific Honda Twin Topics
    Hi all, recently traded my 1980 CB250 Superdream for a similar-aged CM400T. I like the styling, the quality of the build and the extra cc (obviously). Seems to start very easily, which was the main reason I wanted to change. Removed all the luggage clutter (panniers, rear luggage holder and...
  14. Member Introductions
    Hey everyone, I'm new here, and new to full size bikes in general. Having rebuilt a number of 2 stroke mopeds years ago I have a level of comfort going into my first project bike. I just purchased my first bike, a 1979 CM400T (model variant to be confirmed once I get possession in a couple of...
  15. Electrical Discussion
    Hello, First of all sorry in advance for my bad English I'm from Germany and not really into posting on forums :) I have signed up to this forum because I have a weird issue with my Dads '81 CM400T which is really annoying and I don't know how to solve it. After pretty much standing still for...
  16. Engine Discussion
    Hi, I have a 1981 CM400T that I bought off of Craigslist. I have began replacing the airbox with pod filters and have come across an issue with my carburetor. the carburetor I have is not the original carb. it's actually off of a CM450E. I had, what I thought was, the right size jets to rejet...
  17. Fuel Supply and Carburation
    Just got a 1980 cm400t. Was barely running and had sat for a long time. New coil pack, cdi box, battery, and wiring. Problem came when I rebuilt the carb and acceleration pump. After rebuilding it idles fine and at low rpms throttles fine, but if I crank the throttle back fast or hard it gets...
  18. Tires, Wheels, and Brakes
    First off, I'm completely new to the site and to working on Honda twins, so please bear w/ me. Anyway, I just picked up a 1979 CM400T and want to do a Tracker style build w/ some type of dual sport tire; however, I am having trouble finding many options for stock (18f, 16r) dual sport tire...
  19. Member Introductions
    Hello everyone, I’m from Vancouver, BC Canada. Pleasure to meet you all! I just bought a 1981 Honda cm400t, it was a project bike for the past two previous owners. Which means that it has got some work that needs to be done on it. I found hondatwins while I was searching for resources to learn...
  20. Engine Discussion
    The bike ran fine, better than ever, I was just fine tuning and was told clutch lever shouldn't be 90 degrees off motor should be about 120 or so back from front, so i changed it as described in manual. See attached image. The bike was in neutral when I changed the lever, spring and push rod...
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