Running a re-sleeved 1050 gp800 motor on a 5mm stroke for the past 2 years and have noticed that occasionally the motor would hydro lock for a brief few cranks than clear up and run again. This season after a complete tear down and rebuild with fresh gaskets I get it out in the water and it’s running funny as normal, bring it in the adjust low speed screws and find it water locked again. Pull the plugs and the rear cylinder is pulling up massive amounts of water from the case. This has been somewhat of an issue on multiple rebuilds and only now have I seen it be this bad. Any thoughts? Going to take it home for a leak down test, I’m leaning towards a gap between cylinder and sleeve or a cracked exhaust manifold. Anyone have any similar issues?? Love these issues right at the start of our season!