I have a 228hp 1981 305cc with a Quad'junk' 4-barrel that I bought in Georgia in December and the boat has had 5 owners before. And I am having interment ignition problems. I have eliminated fuel, good gas, rebuild the carb professional, increased fuel pickup tube in tank 3/4", replaced fuel pump, replaced water-separator/filter, replaced fuel line, placed an in line filter, etc. When I am running usually after running a while the engine won't advance the timing well that was seems to be happening and the engine sputters, backfires and just runs like crap. Then sometimes it will run fine. I thought it was the fuel since it seems to clear up after I putt around at low rpms for a while, but that doesn't seem to be the case. The shop said it was advanced 26 degrees and set it back to 8 degrees. I have replaced the plugs and wires; the points, rotor and cap have been replace by previous owner and look great. I pulled the points off and checked to see if the mechanical advance mechanism works and the springs spring back when you turn the shaft a little, they do not get held up. I do not want to go replacing everything just to replace it. I would like to know what are the best type of ignition system for the money so I can completely eliminate the problem for years to come. I would like a completely shelf contained distributor that does not need vacuum and will withstand the test of marine environment. Just wanted to see what you all have experienced.
