He took it to his dealer
Steve
Steve
There is more to this story and Echo isn't buying it. If you knew the saw was lean then why not tune it properly?
That piston looks like it might have had a casting inclusion.
Or some piece of metal got in the combustion chamber the muffler from manufacturing.
Or your nitrous nozzle was too big.
*I was a machinist for 40 years and also did N.D.T., non destructive testing. Don't know if it can be seen in the pic but along the break, part is shiny indicating a fresh break and part is dark indicating a fault that was present during combustion and filled with exhaust particles over a period of time. Yes, a bad casting.
*The saw sat at my dealer for 9/10 months after I took it in. Echo kept putting him off, wouldn't return calls or emails after he sent them the pics they asked for. Dealer went out of business so I finally sent the saw back on my own. Talked to the service rep and he was a snotty/cocky prick, just like many design engineers I put up with over the years, couldn't tell/explain anything to him, he knew it all.
Just go above his head, or write an open letter to the CEO of Echo, unless of course you have already.
Small claims court, and get someone else with official cred to offer a notarized statement about the piston casting flaw.
Put a hold on that for a second. Anyone qualified to provide a notarized statement, professional engineer or material scientist, will require testing to be completed and several hours of analysis. That would cost you several thousand dollars before your legal bills. All for a, what $400 chainsaw?
Be upset, tell a few others of your frustrations, switch brands and move on.