ok i messed up- Changed water pump on 1971 125 hp Evinrude, instead of unhooking two wires from powerhead, i removed shift solenoid cover and took solenoid assembly from lower unit. installed water pump kit and put solenoid assembly back together. now shifter bangs and it don't work, What is the best way to fix?? Please any advice?? nobody wants to help with this old motor.