Hey guys, I lost my evinrude 15HP motor in the drink a few weeks ago(rainbowLake nY). I picked up a under water metal detector and started running grid lines to find her again. The water is about 4ft deep (10ft in the deepest spot). I've had no luck, I did buy a 250lb magnet that will be here this weekend. I've spend two weekends diving down and trying to find it. There is a lot of vegetation and a small current. I was looking at sonar systems but I'm not sure how good these will be at finding a 77lbs motor? I can't afford the real expensive ones. Anyone have any advice on this? I'm thinking this weekend I will run the magnet on the bottom and continue metal detecting under water.