New Nepallo 20 ft with 90hp Suzuki-Prop ventilation problem

[Jlewis50]

My new Nepallo 20 with a 90hp Suzuki is having a prop ventilation issue. With a neutral trim the prop vents at full throttle. With a full load it vents at multiple throttle settings.
The dealer has changed the 3x13.5x15 prop to a 3x14in x 13 pitch.
It has improved my problem but it too vents at full power.

Any easy fix for this as the problem still exists and dealer isn’t exactly on top My problems.

[jlh3rd]

without getting into my details with personal experience ( although I can). More than likely you need to lower the motor. Need to see a picture of the motor at level and the cavitation plate in relation to the motor pod and toons...

pontoons can be notorious for ventilation issues....