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nighthawk 450

  1. 1986 CB450SC restoration

    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...
  2. Right Panel Lever stuck

    Engine Discussion
    Hey guys. Right now I'm working on a 1982 nighthawk 450 project. I had a seized engine, so I bought and am in the process of installing a new one. An issue I have is that the lever on the right side panel attached to the clutch cable is stuck. Off of the engine the lever on the panel (I'm...
  3. 1982 cb450 ignition switch

    Electrical Discussion
    I just bought an old 1982 450 nighthawk. It was in great condition for its age and runs but I have an issue with the ignition that makes it pretty much unridable. The key needs to be held in just the right way to get it running. I figured the best and fastest way to deal with it would be just...
  4. CB450SC Regulator/Rectifier replacement video

    Electrical Discussion
    Hello! Got my new R/R in the mail today, and did a video of me going through the process of replacing the stock one, as well as the battery. Its a bit on the longer side, but I wanted to be thorough and document the small hiccups in the installation I went through. Hopefully at some point or...
  5. Bike Won't Go Past 4000 RPM

    Engine Discussion
    Hello all, I have a 1982 CB450SC. I recently changed the oil on it since the previous owner probably hadn't changed in about 5 years, but I didn't change the filter. I added Castrol 10W40. Now I'm having a few issues that I wasn't having before. When the bike idles, everything seems to be...
  6. CB450 Nighthawk -> First Motorcycle of Novice Motorcyclist

    Member Introductions
    Welcome Everybody, I'm totally new motorcyclist who just passed motorcycle driving license. I have my first bike every since one week. It's CB450SC Nighthawk 1983 in original painting and looks like fully original stock machine. I like it very much. I hope to use it long time. To be honest I...
  7. looking for tach for 82 cb450sc

    Wanted Parts and Bikes
    Hi there, I'm looking to see if anyone has a tachometer for an 82 cb450sc, or any advice on how to repair one? Mine started jumping and quit working, so I took it apart and saw that the spring inside has broken. Not sure how to fix it, so might be easier to see if anyone has an entire assembly...
  8. 1983 CB450SC Nighthawk

    Member Introductions
    Hi everyone. I joined the forum in Spring 2015 after acquiring a new-to-me 1983 Honda CB450SC Nighthawk. It's in reasonable shape and the PO painted it a really nice dark green (incl the original chrome front fender). I've posted in a few other topics and still have a few things to work out but...
  9. Horn

    Electrical Issues
    I've got a 1983 CB450SC From what I can tell the electrical system all works as it should except the horn. I can't get it to make any sound by pushing in the button. I disassembled the left controls to get at the horn switch. Looks in good shape - not much corrosion. I am now able to get the...
  10. 85 cb450sc - newb to the forum.

    Member Introductions
    Howdy y'all from Texas! New to the forum, recently picked up an 85 Nighthawk 450. Have had a bunch of bikes over the years, but never had one I bought for the sole purpose of rebuilding. I found this one for $200. It had been in a storage shed since 2007. I will post a video on YouTube and link...
  11. I'm playing the "Which Part is Bent?" game again...forks or triple tree on a CB450sc

    Frame, Suspension and Steering
    I'm playing the "Which Part is Bent?" game again...forks or triple tree on a CB450sc Hello all, A while back I had some issues with a bent frame up near the head tube of my 83 nighthawk 450. 8 months and almost $600 later that problem is solved. The guy did an awesome job at straightening and...
  12. New member, first bike, 82 Nighthawk, bizarre throttle cable fit issue

    Member Introductions
    Hi everybody! I bought an '82 CB450SC Nighthawk about a month ago and was told the carb needed a serious cleaning. I quickly discovered Honda Twins and found it so useful I signed up as well. I'm out in Portland, OR, where there seem to be a lot of people with good knowledge and extensive...
  13. Just Bought a 1984 Honda Nighthawk 450 for $1000 - Thoughts???

    Member Introductions
    Hey all. So I just purchased my first bike for $1000 and feeling some buyers remorse. Was definitely a bit eager to buy a bike and didn't stick with my original plan. Was originally looking for a Honda CB500, CB550 to fix up and convert into a cafe racer/tracker. Really wanted one from the...
  14. '82 Nighthawk 450 Starting Issues

    Electrical Discussion
    My dad owned an '82 CB450SC which he bought new and sold sometime when I was around 3. Apparently he couldn't keep me off the bike and my mom was worried I'd get hurt. I've now been riding for about 5 years (SV650 then VFR800) and decided it was time to start a project with my dad to get his...
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