I bought a new boat and had installed a hummingbird gps/fishfindeer 688CI. On my first sea trial I noticed a water jet stream whenever I am planing the boat. I think the problem is the transducer which is mounted to the left of the motor (see video). Does anyone know how to solve this problem? Is it the transducer?
https://youtu.be/KqGUHcFjaFgAny help will be appreciated.