Have Boat Questions? Ask a Boat Repair Expert.
Hello. My name is Tan.
Is this a factory aux tank? There should be a valve to switch from main tank to aux tank. Follow the fuel supply line from the engine it should go to a fuel valve. Can you take some pics of the engine compartment and the tank.
I cannot find any reference to an aux tank in this boat from Bayliner literature.
If you can measure the dimensions of the tank I can give you the capacity.