no spark

  1. P

    1972 ct90 no spark issue , trouble shooting tips

    Hello, I have been reading about and trouble shooting this issue for a while and am becoming a bit confused what my order of operations should be. Hears what I know: - New Battery, reading 6.34 volts. - headlight turns on - coil is good, tested it with battery and spark plug the...
  2. Wisc102

    1963 Honda C102 no spark

    My friend has a c100 and convinced me to buy a c102 that was for sale. I'm mostly familiar with working on 49cc scooters from the 80s until now so no experience with these 60s hondas. I am not getting spark and can't figure out exactly what the issue is. It has a new battery, new points, new...
  3. KennyCT

    1973 ct70 no spark

    So I posted about my ct70 yesterday after I picked it up. I knew it was having spark issues so I went ahead and picked up a new spark plug, but it turns out that must have not been it. The bike currently has no battery and I'm wondering if that would be the cause? Ive read around and ive heard...
  4. HomelessDave

    ct70 engine wiring issues

    about a month ago, i revived a 1980 CT70 that has been sitting since about 1985. It was running fine after i rebuilt the carb. After about 20 minutes the neutral light quit working, i think this was due to the bad battery (since replaced and it still doesnt work, it probably blew). the headlight...
  5. D

    Alternator output voltage? no spark, new coil

    I have a 6 volt 3 speed CT 70 made on 9/71, so I assume 1972 model. When I got it it had no spark. I have replaced the alternator coils, points, and condenser. I also have purchase a factory reproduction coil. I have measured the AC output of the primary coil at 10-15 volts by spinning the...
  6. A

    1977 ct70 No spark for years

    To start with a little background: My father bought this bike for me when I was 12yo I am now 28yo. The bike always seemed to start fine, you'd ride it for a mile or so and it would stall out and have no spark when check with the plug removed. I tried new spark plugs as well. I would push it...
  7. S

    Anyone in the St.Louis area good with electrical issues ?

    I am looking for someone that may be willing to help me out with a no spark issue on my 1971 CT70H. I am not good in the electrical area and would even be willing to pay someone a few bucks to assist me in getting this bike running. Thanks, Scott :red70:
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