Wow!! Unbelievable!!! You won't believe what just happened!!!

[carasdad]

Originally Posted by scootersparts.net

Seems like defective valve to us!

Could be that as well. Valve tip just broke off. I was merely posting what I have seen and not saying it is the definitive problem.. But it is mechanical related and not heat or detonation related. As I am sure you know..molten/melted metal does not create sharp pitted areas such as in the pics..