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About thejunkman

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  1. thejunkman

    1974 Honda CT70 Honing stone grit

    Typically 280-400. It kind of depends on the type of rings you plan to use.
  2. thejunkman

    Hodaka Road Toad

    This video will help you narrow down your "spark" problems with some theory and some tests you can perform. First replace the points and condenser, that is likely your problem though. However to determine from the testing procedure in the video you will have to know the "Exciter" coil's proper spec, which is in the manual. I believe it is .6 ohms, but get the manual to confirm this!
  3. thejunkman

    1974 Yamaha dt100a enduro stalls...

    Sounds like you need to tweak either the main jet size or the jet needle clip position. However before that, make sure everything is clean inside the carburetor, meaning a dis-assembly is needed. It is possible there is a little bit of dirt or gunk partially blocking a passage. These videos may help understand what is going on. Pay particular attention to what is happening when the throttle begins to open.
  4. Yes. I ride and restore older bikes. See a few of them here https://www.thejunkmanadv.com/barn-fresh-restoration.html https://www.youtube.com/user/thejunkman
  5. thejunkman

    Ignition coil

    Here this video might help you determine if the coil itself is within spec to generate electrical current.
  6. Potato quality is from the original Youtube file size limit of 100mb
  7. thejunkman

    Carb problems

    Watch my video on carburetor jetting, it will help narrow down where your problem is, and how to go about fixing it. However that carburetor may not have a pilot circuit in this case the main jet and throttle blade is doing all the "adjusting" much like a lawn mower carburetor.
  8. thejunkman

    Carburetor operation and jetting explained

    Motorcycle carburetor jetting and operation explained!
  9. Good ideas! My list is not at all comprehensive, its just what I reasonably think I could carry in my back back on the trail. Oh and for those that don't want to watch the video (I understand) Here is a link to the the list of tools. Off Road Tools to carry list
  10. This is related more to offroad riding, rather than racing. But here are my bare minimums.
  11. Here is a good assortment of Off Road tool essentials to carry Full list here