I don't know, but I worked on one yesterday. I know they are not worth much, but I had a complete one given to me, and I spent several hours getting it running. Didn't have spark, so I cleaned the points. Ended up shearing a flywheel key (Oops, forgot to tighten the nut). Put a new rope on the recoil, and messed with the recoil spring because it kept slipping and unwinding itself once the saw would start. Sharpened the chain, and she ran and cut good, but was not oiling. Took the oiler apart and got that fixed, and she was oiling great. Of course during all this I had cleaned the saw up very nicely. The clutch needle bearing was making noise and seemed dry, so I was going to grease it. Tried the rope in the cylinder, but I couldn't budge the nut. Went and grabbed my impact wrench, and even though I know it is left handed, I managed to try it with the impact wrench the wrong way, AND BROKE THE ROD! I was upset to say the least.