I've purchased a 1971 CL 100 that is not running. Getting no spark. Hoping to find answers to some ignition questions.
1. Does this motor need the battery connected to generate a spark..?
2. If not, what is the most likely problem..plugs, points, condensor, regulator..?
If anyone has knowledge of ignitions on these early 70s 4-strokes any information would be greatly appreceated.
I have a 2-stroke Yamaha GT 80 that doesn't need the battery to run. Has a magneto.
Thanks

 

This is exactly the issue I am having. We’re you able to figure out what was wrong? I know this post is old, but here’s hoping...

 

Yes does need a good battery. Points are probably dirty. Sand with very fine emory cloth. Then spray with carb cleaner. Then drag piece of stiff paper between them while there closed. The paper is the final cleaning procedure.

 

wow 15 years later and helpful af, you deserve a medal sir