Well, did a compression check and got some bad news. Pulled the heads and a rebuild is required. 3 out of 6 had no compression, pistons are burned out. Might just buy a rebuilt powerhead, not sure. Eitherway does anyone know where you can get the tool to hold the flywheel/starter ring so it can be removed? Or has anyone came up with a safe way of holding it in place to remove the lock nut? Thanks in advance.