Willing to learn all that I can.

Hi, this is my 1st bike that I am trying to keep up with the maintenance & fix with the help of others. I have a ATV 2016 Honda TRX420TE1 I am currently reading the service manual, looking up on Youtube but still can't seem to figure it out. I am reading about how to read how many times the display blinks when I turn the key. It won't shift gears, I finally learned how to manually shift with that bolt by the shift motor but that's about it. I'm just stuck & give up. I feel like the fuel pump is going out as well.