This happend a while ago but never got time to look at it. The pistons are burnt up and there is pieces missing from the piston and the cylinders are scored. Took it to the shop and they said the number 2 & 3 cylinders were scored and a piece of the #3 cylinder was missing. I thought that maybe the oil injector went out but it appears to me that the cylinders have sufficient amounts of oil on them... Was it the Gas? I remember when we went out we put the highest octane available in which I though was 91. The oil I put in Exceded the requirements by the motor. I did not have the boat long before this happend, maybe 8 months. I bought it used. Could this have been a problem that occured long before i bought it.. It ran great when i bought it. Any opinions would help lots on what I have to fix and how this would have happend.. Thank you so much!

I cant upload and pics for some reason.