cb450sc

Hi All, Bought my Nighthawk 450cc 2 years ago, and have done work on the carb but that's about it. My mechanical knowledge is above beginner, but not great so I may be using mislabelling some parts. I have a hole in the bottom my muffler/cross-over pipe (best photo I took of it, you can...

Hi, I've had my '82 cb450sc for a few months now and now I've got it running reliably I'm trying to do maintenance before I go about making it pretty again. I changed and bled the front brake fluid but I know nothing about the rear drums. Do I bleed them? Is that black bowl looking thing the...

I just bought my first motorcycle and I knew going into it. I was going to have to put money towards fixing it because the previous owner had told me he had laid it over and that there were minor things to replace. I got a pretty good deal on it and it being my first bike. I won’t lie. It was...

Hey everyone! I have an 82 Nighthawk that I’m going to be getting in shape to ride next spring. The bike has many issues but the first one I’m tackling is fuel. I have went through and cleaned both Carbs. I also replaced both air cutoff valves as well as the accelerator pump and all gaskets and...

I am very new to the forum. I need a lot of help. I am in the process of rebuilding the carbs and I made a huge mistake. I broke the slot on top of a part and had to beat a small flathead into the orifice to get it out. I believe it is the needle jet holder but I could be and probably am wrong...

Thanks to a kind donation from Jim I received 5 broken CDI units as was able to use these to successfully reverse engineer the CB400/CM400 manual series CDI. CURRENT STATUS 08-07-2024: Ready for your order. Direct contact via PM, E-Mail or direct order though Hondamaticparts.com preferred...

Can someone say what is the stock m/c bore diameter on this bike. I replaced my beyond repair m/c with an ebay new universal replacement. This unit has a 14mm bore. However, my front brakes feel wooden with little lever travel before max effort and as one possible reason for this I wonder if the...