The replacement motor for the Razor EcoSmart scooter is a 500 Watt motor which is our item # ESM-MOTOR and available on our Razor EcoSmart Metro Electric Scooter Parts page.
The chain needs to be taken off of the motor and then the motor's three mounting nuts can be removed to dismount the motor from the scooter. Installation is the opposite of removal.
Not that we know of.
Gregg hill