Just got my first boat, a 1987 Wellcraft 192 Classic, the fuel guage doesn't work and I cannot find out the fuel capacity. It has a Chevy V-6 with a OMC Cobra stern drive.
the fuel tank needs to be uscg approved. to meet this spec. it will have a tag on it stating such. along with the capacity. it's usually located by the sender on the fuel tank itself.
short of that.
siphon all the fuel out and fill her up and note how much ya put back in....
Hey Joe, welcome aboard! I have moved this over to the General Boat Topics section as fuel capacity is pretty much independent of the engine model. Good luck!!