So I have an 80cc motor on my bike and I had replaced the piston rings along with all of my gaskets. In doing so I had ripped my bottom head gasket and had still seated it seeing as it was not that bad. Now I started my bike and it ran for about 45 seconds power was a little low but i didn't worry that much about it. So i rode for a second and it made this clink noise then it shut off. Not sure if it's because my gasket it leaking air didn't have time to check I had somewhere to be. But now it will not get any compression what so ever and I can hear my piston tapping my head every time it moves. Now i am very new to this only had my bike for a couple of months so i'm not entirely familiar with these little engines and I want to make sure I do it right this time. So any help would be appreciated.