Im thinking about returning it. I emailed the person I purchased it from with questions about the battery and he said it is a replacement engine. I asked him what battery he recommended and he responded with this
"You can not just install the motor with a battey.
This motor is for a bike and the bike has a 12v battery.
Most of our products are direct from distributor and are intended for jobber purpose, so they do not come with instruction manual wiring diagram . Professional mechanic are recommended for installation. Thank you.
thanks"