I recently *(as in last week)* had my boat in for a tune up. Tried using it this weekend and it didn't run right. I had to "slam" it into gear to get it to go forward. If I didn't "slam" it into gear, it would die upon attempting to ease it into gear. Called the shop, they said to let it warm up more. That didn't help any. I was able to pull a tube for a bit and it ran alright, but was a little rough. Ran out of gas in one tank and switched to the next. *(too rich mix 25:1 instead of 50:1)* Ran for a few more mins until all of the sudden I had to have the boat wide open to run at "no wake" My question, in your honest opinion, do you believe the piston was blown before I took it out, or, after? Could running too rich a mixture cause it?