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Surprisingly, piston looks fairly good considering the saw got fed a mixed Stihl and local INA brand oil diet at 50:1.
Top piston ring.

Second piston ring.

Bottom of the piston (GRRRR, OPE is flipping pictures again!).

They perfected the air filtration, only the fines are getting through.
Carb intake, not too bad.
What an idiot I am hauling my PS-6400 with only 3.5kW around, should switch over to the STEEL S440 with 4.0kW.

Top piston ring.

Second piston ring.

Bottom of the piston (GRRRR, OPE is flipping pictures again!).

They perfected the air filtration, only the fines are getting through.
Carb intake, not too bad.

What an idiot I am hauling my PS-6400 with only 3.5kW around, should switch over to the STEEL S440 with 4.0kW.

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