What does it mean when your motor is cavitating? Cavitation occurs when a boat and outboard are not setup properly. What happens is the prop is too close to the surface of the water. This allows some air to be drawn into the prop spin and the engine over revs. You then lose forward momentum and that is what is called cavitation. This is very common with a JET outboard.
Here are 4 solutions to this problem:
1. Ensure your outboard is on he lowest possible setting to start. After you start in that position, you can work your way until the cavitation starts and then come back one. An outboard has 4-6 different trim settings or shallow water drive settings.
2. You can use a hydrofoil to help keep the prop under water. Improve your get out of the hole performance, or your hole shot as it is otherwise referred to. This attaches to your ventilation plate on the outboard, when you give it some gas, it's going to rest on that. A lot of people who run their boats alone appreciate that at the back of the boat. A hydrofoil is something for the boat to sit up on and get up on plane faster to prevent ventilation.
3. Add a TH Marine transom wedge (5 degree positive tuck transom wedge). This puts the outboard at a 5 degree tilt further into the water. It allows the prop to bite a little bit harder or the JET outboard to grab a little more water especially in those tight Cornes.
4. The last solution is to try a prop change to fix a ventilation problem.
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