I just installed a 898c si. Mounted it on the transom, no obstructions in a stright line from the sides down. I have no right side imaging (mounted to left of motor). The 2d sonar reads erratically. Does'nt matter what I tried, it did'nt work. Tried trimming motor up, shutting it off, adjusted transducer, did'nt mess with default factory settings either. Can anyone tell me what is going on here? I have a tournament next week and I have to prefish an unknown lake with no sonar.