Doing some renovation on my 1971 CT70 K0

Discussion in 'Projects/Builds' started by NathanT, Jul 12, 2021.

  1. NathanT

    NathanT New Member

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    I'm doing some renovation on my 1971 CT70 K0 so I'll use this thread to post questions as they come up.

    But first, here is the story behind my CT70. I didn't have a CT70 when I was a kid. When I was young my parents were way too frugal to ever buy me a minibike, much less a Honda. But I got hooked on motorcycles anyway and when I turned 16 I bought my first one, a 1972 CB350. Over the next 10 years I owned two other Hondas, a CX500 and then a VF750 Sabre. I rode a total of over 60,000 miles on those three bikes. In 1987 I met my late wife, and her parents had bought her older brother a 1971 CT70 when he was a kid. But by 1987 he had long ago lost interest in it. I found the CT70 in her parents garage covered with greasy dirt and cobwebs and in need of some minor repairs. When I expressed interest in it her father gave it to me and signed over the title. I cleaned it up, got it running, and rode it occasionally for a few years. Fast forward to 2021: My CT70 had now been sitting in my shed for decades and was still 100% original with only 1284 miles on the odometer, but had not been started in at least 15 years. In the 34 years that I owned it the only thing I had done to the engine was change the oil and the spark plug. It needed a carb rebuild years ago and I had removed the carb but unfortunately during a move the original carb got lost. I've been thinking about renovating the CT70 for a long time now but first I wanted to see if I could at least get it running. So last month I finally got around to installing an aftermarket carb. With the new carb, a new air filter, and fresh oil, it started right up! Runs great although a little rough at high rpm so I still need to sort that out. It is definitely overdue for a tune up.

    So now that it runs, I have started on the renovation work. This isn't going to be a concours level restoration job, I just want it to run well and look good. I have already replaced the seat, throttle assembly, grips, hi-beam switch, and a few rusted chrome parts.

    Right now I'm working on replacing tires, brakes, wheel bearings, rear shocks, chain, and sprockets.

    Here are a few pics . . .
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  3. Robert thran

    Robert thran Active Member

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    That thing is a cream puff..your plans are exactly what I would do to it if it were mine but I would look for a clean original carb to rebuild and stick back on there..its way to nice to garbage up with Chinese parts..but that’s just my opinion…have fun with it!!
     
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  4. kirrbby

    kirrbby Well-Known Member

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  5. NathanT

    NathanT New Member

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    I'm preparing the rims and hubs for repainting. I removed the old oxidized paint the old fashioned way; steel wool and elbow grease. I will be painting with etching primer and VHT silver caliper paint. Here are pictures of the front hub before and after removing the old paint.

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  6. Clayton

    Clayton Active Member

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    That’s a very nice bike. You probably know this already but speaking from experience steel wool isn’t the be option for cleaning up aluminum. Iv been using scotch-brite etc. I used steel wool on a very nice hub that was aluminum and all it did was make my hub rust from all the embedded steel. Also if you wanna keep it close you can buy spray paint from Marbles Motors that’s as close as I can find to Honda Cloud Silver which is what your hubs were originally painted. That’s an amazing survivor in my option you should be very proud of it.
     
  7. NathanT

    NathanT New Member

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    I saw a thread where someone compared silver paints and found the VHT Caliper Paint in aluminum color to be the best match. So I went with that instead of using the original Honda Cloud Silver paint because I read that there can be quality problems with the Honda paint.

    I was wondering if using steel wool on the aluminum hubs would be okay. I was concerned about scratching but that doesn't appear to be a problem. Any steel wool scratch marks on the hubs are fine enough that they won't be visible through the primer.

    I have a lot of painting experience but not on aluminum. My other hobby is high power rocketry where I have a reputation in the rocketry community for my paint jobs. Here are a few . . .

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  8. Clayton

    Clayton Active Member

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    Sweet rockets!
     
  9. darrel gunderson

    darrel gunderson Active Member

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  10. red69

    red69 Well-Known Member

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    Let's see Jeff Bezos ride one of those babies!
     
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