I drive a 66cc from speeddemon and I take it back and forth to work 8 miles or so each way. Anyways I got to work and was fine. Went out and got some food came back parked it, went back to work.... When went to go home I stated it up and within a second I heard a tingly sound like metal jumping inside my engine, not loud but more like a ball bearing bouncing inside a metal box. It wouldn't start again after thus. I took off my spark boot and removed the plug. There was metal shards wedged in where the gap was on my plug. The bike kit is brand new how could a ring break so easily? I done bad and drove it home with no problems after I removed the shard. I know I might have caused major damage but I had to get somewhere and havnt driven it since then. So do I have to open the crank or can I usea magnet?