Look at the pump..see if the bar that joins the pump is not bent,,,also check that the left pump,,,prop are not compromised,,,check that the right side pump is not blocked,,,have a bent prop,,,rope,or gouged wear ring...my guess is that the exit nozzles are not parallel.,,,just get a very strong flashlight,,,go under the boat to check the prop and wear rings,,.perhaps the,steering cable broke st the nozzle,,,or at the helm,..start at the intake grate,,then inspect the pump steering components,,,