So I have this H50 with lighting coil that I bought from this kid, and it has a cent. clutch on the shaft. I am going to be putting on a TC so I went to remove the clutch, removed all set screws, and the thing will not budge. I have loaded it with penetrating oil which has been sitting in there for two days now and nothing. You guys have any tips for me that might help in getting this thing off? Given the value of the engine I would really like to get it off.