50cc scooter runs bad after repairs  By  capob (Read 1,654 times)

Another very important area to check are the Crank Shaft Seals on Any Two Stroke.
The 50cc is Really Sensitive to Air Leaks and her Crank Seals are a Major Overlooked Source of that.
If there is even a question or they weren't replaced, Replace them.
Any endless jetting/mixture issue's were almost  always Crank Seals.
Be very careful, there small,  if your unsure have someone Competent install them for you.