Power loss mistery rpm loss

[Watsx195]

After some testing looking for advise.
2018 sx195 supercharged
New correct spark plugs gapped right
New oil -level good
Impeller And wear ring look great
Supercharger spins only 1 way (clockwise)
Idle is great runs smooth
Clean out port seems good and sealed
Issue

Trying to get on plane boat will hit 7k rpm and drop to 5200 without moving the throttle and no throttle above that does anything if I try to get on plane at a few mph its worse then from a stop
No alarm minus speed comm error which is been that way because the transducer is on backorder

 

[Cobra Jet Steering LLC]

Seems there are a lot of people having problems with the plastic baffles on the exhaust system melting and filling the hull with carbon monoxide recently so just to be safe check the exhaust for leaks clamps hoses baffles etc,

 

[Watsx195]

Just checked after your reply and all the clamps are right and tight and all the hose feel new and not worn everything is seated like it should be

 

[Cobra Jet Steering LLC]

ok then inspect the air cleaner element for dirt or oil. or the fuel may be stale

 

[Watsx195]

I replaced the k&n the previous owner had on it, it was dirty no change ... I put fresh 93 yesterday...no issue with how it runs its smooth I was able to run out 45 mph yesterday for a few miles had to stop for a bridge no wake ...thats when this started
I did the service for the season also put lfr6a spark plugs in it but changed out lfr7a after this issue I put back new lfr7a checked gap and tested again ..no change from a dig I can punch it and go then it drops back to 5200 rpm about 26 mph... if I try and pick up rpm while moving it won't even Rev to 5k

 

[Watsx195]

Update this was the starter clutch

 

[jacoviii]

Update this was the starter clutch

Please tell me more?