Removing the engine should now be a doddle. There are a total of six mounting points, and with all the studs and bolts undone the engine should simply lift out. Before ploughing ahead though I've just paused to note this gap which opened up at the top rear engine mounting when I unbolted the stud. These early CB750s could snap drive chains on occasion, and frequently the crankcase would suffer as a result. I'm wondering if this crankcase has been damaged and repaired in the past, resulting in a poor fit here. At the moment there's too much grease and muck on the engine to tell, but I'll be taking a good look at this area of the crankcase once the engine is stripped and degreased