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  1. Using a modified H-Box (without the inner tubes)

    Technical Help Forum
    Hi guys, Here is my story. I bought a CX500C 1980 in parts. The bike had sit a while outdoor but it's still pretty in good shape beside some parts. One on them is the H-Box. In my hands, when I shook it, I could hear the inner tubes loose in there. I managed to cut a hole in there and I was...
  2. Adding Pods but keeping Side Panels?

    Technical Help Forum
    First posting on here - I'm working on a 1980 CX500 and have a questions about the air/exhaust. My plan was to remove the H-box and run straight pipes. I've heard that with straight pipes it's advised to increase airflow and re-jet. I have the jets and pods needed but I'm wondering if there's a...
  3. H-Box Problems

    Technical Help Forum
    So with the weather finally clearing up, I had the time and room to take apart my exhaust and take a look at my rusty old H-Box. After cleaning some of the rust off, it looks as though it is still structurally sound, but I had some of this stuff falling out of it, and I can hear more rattling...
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