Chris: I originally bought the saw in a basket for $80. The prior owner had taken to a shop that diagnosed the problem as a crank case air leak and they wanted a lot of money to do the work. It had a LOT of other problems. Bearings, piston scored, seals, carb was dirty, flywheel was cracked. I was not sure how it could even get to that point. After all was said and done it as cost a couple of hundred of parts. It was fun. Rebuilding a saw is about the limit of my attention span.
Brad: The saw was intentionally tuned a little rich. I used the method in the workshop manual. Maybe I will push it a little further rich. I will check the play on the crank end bearing. Do you have any idea what the limits would be and how to measure? I would hate to have to split the case again and find a good crank. I was running the oil mix at probably 45 to 1. I will take the 32-1 advice. Increasing the oil content from 2% to 3% is not drastic.
Gyp: What muffler mods would you recommend? This one has been drilled and screened on the top corners by the prior owner.
Now I need clean the cylinder and all the junk out of the case.
Thanks for all the help
John
The workshop settings are just basic guidelines. For milling you will need to learn how to tune by ear, and tune extremely rich. Milling can kill a saw in short order if it's not setup for that task.
Best of luck getting her running again.