So my boat won’t plane out. It goes right to 7k rpm but sounds like it can’t push the water through the jet. I checked for obstruction in the inlets but nothing found. Any help or advice is appreciated.
Normally cavitation that bad is from a major air leak. OR... a damaged impeller.
I know you said you checked the inlet grate... but did you look into the impeller. (from both sides) I picked up a hunk of wood one time, and it was the size of a pingpong ball. That was enough to keep me from going anywhere other than 5 mph at slightly off idle.
Upon further review, we took it out again today. Right off the trailer it took off like a scalded cst and planed right out. After running for about 29?mijutes I slowed down and we just idled for about 20,minutes. Went to head back to the launch and it wouldn’t get above 15 mph and no planing out. I am think maybe a wear ring? Maybe when it’s cold it runs fine but as it gets warmed up it expands?
Nope... doesn't work like that. It doesn't take much to cause cavitation at times. if you got something in the pump... it may simply wash out when you put it back on the trailer.