Seized chainsaw

[alexinPA]

Got a picture of the scoring?

 

[MossRoad]

Already removed cylinder assembly. Piston got 1/4 in long deep scratch. Cylinder not as bad with some small scratches. Ordered new ones

Piston got more than 1/4" long deep scratch.

 

[MossRoad]

Brightened it up a bit.

 

[Dmacleo]

wow.
who amongst us has never killed a 2 stroke?
be honest, I'll admit to the deaths I've caused.
but that...wow.
my hat is off to you
I kid

 

[BnRidge]

View attachment 735762View attachment 735763

Ok, what the happened. You don't fry something like that without a clue.

 

[Snobdds]

See post #2

 

[RandyT]

Ok, what the happened. You don't fry something like that without a clue.

See post #2

OP claims straight gas, but that piston looks more like it ate something that it didn't like.

 

[IrishLoader]

OP claims straight gas, but that piston looks more like it ate something that it didn't like.

Maybe part of the ring? Ethenol poisoning will eat up a saw pretty quick. One of the most common terms I have heard right before grenading was, "It was running great!"

For the average home/farm owner I would always try to recommend the various canned versions of ethanol free fuel that was pre mixed. For the record all my small stuff right up to the 18 hp orange motorized goat for trimming the grass gets treated fuel ether pre mix for the 2 strokers and the 4 strokers get Stabil 360. Saves a lot of headaches and "seasons" the various carbs with "clean" fuel and mix/stabilizer.

 

[dodge man]

That’s bad, definitely needs a new piston and cylinder.

 

[MossRoad]

OP claims straight gas, but that piston looks more like it ate something that it didn't like.

OP never claimed straight gas.