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  1. 82' CM450C Restoration, Don't ask why, ask why not.

    Project Logs
    Hey guys, so a few months back I purchased a 1982 Honda CM450C..Seller said it had 8000 miles on it, and he put 200 hundred on in the last two years. The bike ran like **** and looked like it as well. In fact I crashed it during the test ride, as I was going to pump air up in the tires...
  2. VB-21B carburator cleaning

    Fuel Supply and Carburation
    I have a 1978 Hawk TII with a VB-21B carburetor that I am trying to clean/rebuild because it was sitting for three years with fuel in the carburetor and it runs very poorly. I was able to remove and clean most of the jets and jet needles but am having trouble figuring out how to remove the slow...
  3. Old bike, new build

    Member Introductions
    Hey everyone! I bought a 1981 CM400T a little over a decade ago as a 21st birthday present to myself. Of course, I was in college and moving around a lot so I didn't have a lot of time to work on it or properly maintain it. I rode it around town for a bit, but after it got kicked over in my...
  4. Uh boy......72 CB350

    Engine Discussion
    Well......it looks like (possibly) back to square 1. I was having a problem with the left cylinder not firing. I found that the timing on the left cylinder was off slightly. Made the adjustments and fired her up. I was getting great compression out of the left exhaust, but, the left side was ice...
  5. Rebuilding a freshly rebuild CB360

    Engine Discussion
    I paid a local shop to do some top end work on my CB360. They installed the cam chain tensioner wrong (prove it amirite?!) The tensioner snapped both the metal tabs on top and bottom off and are currently floating around in my engine. I'll be rebuilding the engine myself this time, but I'm...
  6. project bike: 1975 Honda CB200T

    Member Introductions
    Hey guys, I am the proud owner of a slightly running 1975 Honda CB200T and I am proceeding with disassembly and servicing and what not. This is my first motorcycle and my first time working on one but my teacher helped me convince my parents to let me do it as an extra credit kind of thing...
  7. Compression not equal during rebuild

    Engine Discussion
    I am rebuilding my 1971 CB350 K3. Motor is sitting on the bench and I just put the head cover on. I noticed when keeping my thumb over the spark plug holes I felt less compression on the right side than I did the left. So just to check I did a compression test. I got 35 on the right and 55 on...
  8. Betsy here! Rebuilding a 1973 CB350G!

    Member Introductions
    Hey Everyone! Im Betsy and I am rebuilding my bike. I had to swap out my engine and now im trying to find carbs. My coils and points are on their way. I need one exhaust, a chain, tires, tubes and nipple covers. What else... My right turning signal ticks with no lights but the other side turns...
  9. Girl First Re-Build '71 CB350

    Engine Discussion
    Hi Guys and Gals, Please humor me. Some of these questions might seem lame to you but I am a first time "mechanic". I basically just learned about all the parts of an engine and how it actually works! I am rebuilding my '71 Honda CB350. I race it at AHRMA (Vintage Motorcycle Racing at Willow...
  10. Hello from Wheaton

    Member Introductions
    Hello everyone, Thanks for having me. Here are a few pics of the CM400 I have been working on
  11. [1st-Time Novice Mechanic] 1981 Honda CM400 Revivification Thread "Thumper"

    Project Logs
    In this thread I hope to save the life of a truly dear friend. My trusty steed... my faithful companion. "Thumper," the 1981/'84 CM400/450 hybrid that I learned to ride my first miles on. That went down with me in a tangled mess time and time again as I pushed the envelope of what we - together...
  12. 1975 CB200T Carburetor Disassembly Help

    Fuel Supply and Carburation
    Hi everyone, I tried to search around this forum a little but couldn't quite find what I was looking for. I'm not new to wrenching but I am new to motorcycles and I bought this CB200 about a month ago with a few issues. I'm starting to go through the fuel system. I'm in the middle of...
  13. Having throttle and engine ticking noise [video]

    Engine Discussion
    Can anyone help me out? I don't know if this is just me hearing things, but I feel like the throttle is staying for a little after it snaps back. It just sounds different than before. Also can anyone diagnose what that ticking noise is and if its dangerous to ride it. I don't want to ruin...
  14. 1969 CL350 : Aura - Redux

    Project Logs
    Well since I finished my CL350 build I have uncovered a few little issues that I must address so that I can improve the safety and reliability. So today I completely tore everything back off down to the motor. Initially I didn't conceive that I would essentially have to break it down this far...
  15. Fresh rebuild: Oil in tailpipe, low compression, no carbon in left cylinder

    Engine Discussion
    Ok. So the bike in question is a 1974 CB360. I just finished the rebuild after a catastrophic cam chain failure. I missed a step in setting the cam chain timing and had a valve hitting the piston while hand cranking. I fixed the timing before ever kicking or starting the bike, but the contact...
  16. 1974 CB360 Engine Rebuild

    Engine Discussion
    I just buttoned up my CB360 engine rebuild and got the engine mounted back in the bike. I was meticulous with the rebuild. I took everything apart and cleaned with kerosene, reassembled with assembly lube, referred constantly to my Clymer and shop manuals, parts fiche diagrams as well as youtube...
  17. Imminent Engine Destruction

    Engine Discussion
    Hello HondaTwins, I made a few posts when I first got my bike, but I haven't had any problems since, so I've just been clickin' around on occasion! I wanted to thank everyone in advance for the help and wisdom. I have read around and gathered resources, I just wanted to start a thread for this...
  18. Do i need to get a new camshaft?

    Engine Discussion
    Hey everyone, first time posting. I have started a rebuild on a SL350K1 and have a question about the camshaft and rockers. I've searched around the forum and haven't found and specs on them. The repair manual I have doesn't address them either. I do know that Delta camshaft can do a...
  19. Blown piston -> rebuild -> won't start

    Engine Discussion
    Hi all, This past Thanksgiving, I blew (burned?) a hole in my '80 CM400a right piston. I purchased 1mm oversized pistons and took them and the cylinders to a machine shop, where they were bored and honed, and I've finally got everything back together, but it won't start. A year ago, I had taken...
  20. Rebuilding a Motorcylcle Engine: Rules of Thumb

    Engine Discussion
    Lets get the discussion started. I'm an architect and amateur carpenter. I can follow instructions and figure most things out. I'm new to rebuilding motors and I'm getting ready to tear down my 74' CB 360. From my lack of experience, I'm unsure of what to look for and typical things I should be...
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