Cylinder inserts on a Poulan ppb418 chainsaw

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Old 11-03-16, 05:35 PM
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Cylinder inserts on a Poulan ppb418 chainsaw

I would like to know a the purpose of these two inserts that go into the sides of the cylinder wall on this poulan saw. I've rebuilt quite a few 2 cycle engines but this Is the first poulan. one is gray that goes in a slot on the right side and the other is black on the left side. I see no purpose. Anyone have any ideas?
 
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Old 11-03-16, 05:57 PM
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I believe they are teflon and they reduce friction and slap on the piston skirt.
 
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Old 11-03-16, 06:02 PM
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thanks, cheese, that makes sense. I know why not too many people will repair these. pretty cheesy engine. No pun intended.
 
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