Was wondering what would be a good price for carb kit for 90 hp mercury, serial number 1b038717 model # 1090412DD. Also looking at a schematic on line this shows a solenoid for the fuel pump , do all models have this or just some. I'm loosing power(motor dies) but if i squeeze bulb it takes off and runs. I've replaced all lines, bulb, tried differnt tank, rebuilt fuel pump. ??????