After a day out diving the engine started making funny destructive noises, but being quit far from land and the wind moving in the wrong directing. We kept the engine running and got back to land without anything but nasty sounds from the engine.
After getting the boat back on shore I borrowed a compression tester and went true all the cylinders, 6-7 bar on all but one 0 bar
Off with the top
No more piston rings on one off the cylinders, but even worse, they had come off in small pieces and completely ruined the cylinder the top, and everything else on there way true the system.
So repair prices are a little more than half off what I can get the new 250 Hp Suzuki for.
I think I'm going to go for a newer 4 stroke engine, and trade in the old Vmax, But it do have a nice sound when you open it up.