The bike can not start - Electric start bike troubleshooting

Please do an oil change to 10W40 synthetic. Use FRESH gas
Please loose the drain screw on the bottom of the carburetor to see if there has gasoline going through it
https://www.youtube.com/watch?v=dRJAY01Veqw
Please check whether the battery is correctly installed and fully charged You can check the horn and lights, see if they work
Can you hear the click sound from start motor when you push the start button? https://www.youtube.com/watch?v=kgZ-ZV_ePNE
Please check if there is spark on the spark plug https://www.youtube.com/watch?v=F1AuZLA0Lpk