How do you replace the back tire on the razor pocket mod viper?

SOURCE: Bought a razor pocket mod scooter second-hand-it

Use a wedge. Place the thin end between the tire and rim. Then push the tire off using the wedge and your other hand, work your way around the circumference of the tire until it is off. Use the same process to put the new tire on. But this time you will push the tire on the rim.
This is a pic of the ideal tool you should use:

Marvin

• 85242 Answers
• Posted on Dec 04, 2016

SOURCE: Razor pocket mod wont start just a green light and a clicking sound I brought a new speed controller but wont start.

Sounds like the battery is defective.