Last time out wind was a little brisk, so bounced around on some waves. Have had boat less than a year. Fuel tank is full. Hoses look to be in good shape. Boat is '87, so has some age, but motor rebuilt prior to my purchase. I've read there is a bulkhead fuel filter on this boat. Found it - 'Groco' on top (pic attached). Thought filter may have been getting clogged due to bouncng on waves and stirring up tank. Took top off 'Groco' and all that is in there is fuel and a 1" diameter spring. Fuel trickles out with top removed. Should there be a filter element in this 'filter'?