Just picked up my dad's old 1969 yamaha 100 l5t that's been collecting dust for the past 35-40 years. Anyone know much about these bikes?

I'd like to get this thing running again and most likely swap something a little faster into the frame.

Anyone know what people have swapped into this frame or what the motor mounts share?


  • 1
    While I appreciate your enthusiasm, writing a question towards a specific issue you are having with the bike would be a great way to get started here at Mechanics.SE. Asking such a broad question is not such a good fit for the site. Commented Mar 7, 2016 at 16:55
  • 1
    Forums and clubs would be your best bet. Commented Mar 7, 2016 at 18:36
  • @ErikvanDoren - I would disagree. All he needs to do is ask questions suited to SE. Start fixing and when you have a problem, ask how to fix it. Commented Mar 7, 2016 at 21:34
  • Okay how do I fix a rusted out motor? If I need to find a new motor, will another motor fit this bike? @ErikvanDoren
    – ahendren
    Commented Mar 8, 2016 at 3:26
  • @ahendren, I think you meant to address the comment to PAULSTER2. And if you used the comment to be more specific, then you should probably directly edit your question. (it might still be a bit too broad though, not sure) Commented Mar 8, 2016 at 13:51


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