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MS290man

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Here's the MS271 I bought off eBay. PO straight gassed it. Doesn't even look like it was used to cut anything. Cylinder was salvageable and I scored a new OEM piston off eBay as well (bought before I disassembled the saw). Rebuild was going well until I noticed the piston looked different than the one that came out. Got on the board here who helped me to realize that I actually had a newer version and that they had changed the internals. So it sits here waiting for the new, correct piston to show up at the dealer; 2.5 week back order.

So I went ahead and replaced the cylinder and piston on a MS250 that I had previously got running but only had 110 psi compression. 170 psi now...
 

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MS290man

Super OPE Member
Local time
2:51 AM
User ID
1517
Joined
Jul 6, 2016
Messages
254
Reaction score
630
Location
Texas
Country flag
Here's the MS271 I bought off eBay. PO straight gassed it. Doesn't even look like it was used to cut anything. Cylinder was salvageable and I scored a new OEM piston off eBay as well (bought before I disassembled the saw). Rebuild was going well until I noticed the piston looked different than the one that came out. Got on the board here who helped me to realize that I actually had a newer version and that they had changed the internals. So it sits here waiting for the new, correct piston to show up at the dealer; 2.5 week back order.

So I went ahead and replaced the cylinder and piston on a MS250 that I had previously got running but only had 110 psi compression. 175 psi now...

Pics of 250
 

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