The problem with a motorized bicycle is that there is no light signalling, so that means when it some to night, there is no way for anyone to see you or you to see them.
Luckily there is a kit for integrating lights into your motorized bikes magneto system without taking a tole on the spark generation.
You can purchase it here:
The eBay store page:
The exact kit I used:
Music: 4AM – Vessels,
Got a request? Requests and inquiries: firstname.lastname@example.org .