Thanks in advance for any advice. I have a barn find Stihl 026 that is hard to pull with the plug inserted. With the plug removed it is much easier but not exactly free wheeling. I thought maybe it would be exhaust blockage so I pulled the muffler cover off and it is clear. Also verified the piston is not scored on the exhaust side at least. It does have good compression but I have not measured it. I removed the pull start assembly and it too works adequately. The sprocket spins when the cord is pulled. Can the intake side cause a compression lock issue? The chain break is not engaged and even if it were, should not cause this condition. Putting a squirt of oil in the cylinder and pulling the cord several times did not help. I want to restore the saw but not sure crank bearing replacement would be worth it. Is there anything I have forgotten to check before I toss this one back in the barn? Thanks,