Ms291 scored piston!

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Grafton8

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Hello

I purchased a Stihl ms291 last August and saw is acting up this spring. After doing a little reading, I decided to take a look at the piston through the muffler port. There appears to be scoring and rings seem very tight.(pictures attachted)

Just wondering my path forward? I’m planning and returning the saw to see what and if any warranty is available?

Have people any any luck with Stihl warranty?
 

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