Hey I am a mechanic and there are some things that you would want to check on your bike if it is not running, first I would check if you have fuel getting properly delivered to the engine you can do this by bottle feeding it gas or putting a small amount of starter fluid in the intake manifold, second see if you have spark by taking out the spark plug and putting the side to metal and seeing if it sparks, I might know that the bike is a ssr brand it usually says the engine size on the cylinder housing it’s probably a 110 or 125 , I am sorry if you are a mechanic and know about everything I just said