This is regarding my 05 Lightning with 525's and Bravo I XR drives.

When I flushed the drives yesterday, starboard side runs water out the drive and both exhaust outlets. After closing the starboard side and opening the port side, I get water flowing out the bottom of the drive, but only out one of the exhaust outlets.

I pulled the blue plug on the manifold and water came out of there, but it will not come out of the second exhaust outlet.

The boat has 15 hours total.

Any help is appreciated.