Hello, I have a Yamaha moto4 1987. I changed the oil and put the new oil in and now it doesn't want to start. It will fire once, and that's it. If I wait a few minutes to start it again, then it does the same thing! I'm completely lost on this.
If anyone has any ideas on what it could be, please let me know, thanks!

 

You don't say what model,but sounds like you need a service manual to check out the electronics.Changing oil wouldn't cause this. You might try to contact this place.https://www.tradebit.com/G/manuals/14-atv

 

After going over all the wires and ect, the only thing I forgot to check was the gas! It wasn't getting gas from the fuel tank, not even a drop. So I blew some air back threw it and it cleared it right up and it allowed gas to start flowing again. After that it fired fight up!! I'm so happy

 

Simple things that people sometimes over look..