I have a 49cc semi auto that needs a new head (is that the part that holds the valves?) It has almost no miles on it. The reason it needs a new head is because I stripped out the spark plug hole. I tried to drill out the hole and use a steel insert but I accidentally drilled too close to the valve and the valve no longer seats properly. The new head is 50$ on Ebay. I have no idea how to ship something like this.
This is what it needs. This is just an example, they can be found cheaper if you keep looking.
http://www.ebay.com/itm/Gas-China-Di...128159?vxp=mtr
/