Im not sure what the problem is, I will figure it out eventually, but Im getting tired of fooling with this thing! As some of you may remember, I got 4 562s over a year ago that were junkers from another logger that passed away. I built 3 of them back and I have been using one every day cutting timber with zero issues. The other 2 I built and gave to my son and a guy that works for me. Both of those have been plagued with issues. Im in the process right now of trying to fix the one I gave to an employee. First time around I bought a new oem cylinder and piston for it. It ran for a while but then the bottom end let go. It spun a bearing in the case so I bought a set of new oem cases for it, replaced the bearings and it ran for a while again. Now the connecting rod bearing is down so I bought a used 5 bolt case and crankshaft assembly off fleabay, a new meteor piston and put it all back together. Now the damn thing wont run hardly at all and keeps soaking the plug in oil. Im afraid the case is leaking oil from the chain reservoir into the crankcase. Im going to take it in I guess to have the carb and coil updated, but I don't THINK that's the issue because it ran fine 2 rebuilds prior to this time around. Ideas would be appreciated but Im afraid I know the answer already.