What to do about shattered piston!

LMETFY parts are plenty on ebay here is the piston and cylinder. Of course there are also other sources like this and a Google search will probably reveal more. As for why it happens, there can be many reasons. Since it is a 2 stroke it wont have valves, that is a good thing. But if the piston had to much "slap" and was binding in the cylinder it may have cracked as well as scarred the cylinder walls. Anyhow, a good inspection will reveal more of what may have happened. Just in case you need the service manual , you can download it, as well as the parts manual from my little black book ;-) Good Luck