I used to ride an old NC 50 Honda that I had to rev for any light at all. I barely missed a piece of 12x12" railroad tie laying in the road, and bought a battery just for the light. That was on a 40 year old "noped"!(moped with no pedals) You would Think they sorted this out by now.
Ps... The NC 50 is still running. Spark plugs, and tires are ALL I ever changed on it.