Question: how do i get a wiring diagram for a schwinn s-150 electric scooter?

Answer: You would need to contact the manufacturer for any diagrams, but there are a few great sites that have general electric scooter information posted in it. You will find this and the answer to all of your electric scooter needs at visforvoltage.com. This is an electric scooter forum that has many knowledgeable members whom are very helpful. If you need a repair shop or parts in your area, check here: Scooter Parts Store.