Ran it for not even 2-3 extra minutes trying to see what would happen, but had no luck! Bogged down boat that didn't wanna GO and the continued nasty noise coming from the back! Made it to the dock, parked it and tied it up there. The boat sat there for approx 2 hours. Went back, started it and "magically" it worked! Reverse, forward, neutral, nasty noise vanished. Drove it out into the lake 55mph, 6000,7000RPMs, no problem! Ran like normal! We then pulled it out of lake and trailered it. Inspected the rear gate/jet area and saw nothing! Inspected the rear underside, nothing! Everything looked fine!
Should I be concerned?