Several years ago, I bought a boat with a 1979 Mariner 80 outboard.<br />From the the beginning I had a problem with the spark. There were times<br /> that you could start the engine easily and then the next time there was no spark or very weak one.<br />I replaced the switch box, the internal and externa l harness. I tried to start it......it started right away.<br />Then a couple days later I would try to staart it ....no spark. I replaced the trigger ...it started, but days later nothing .<br />I took it to a mechanic and he said the starter was dragging and he replaced it....it started.<br /> I took it out on the water,it ran fine. Several days later I tried to start it again....no spark.<br /> After replacing the entire electical sysem, it still acts the way way it did in the beginning. I<br />don't know what do do next. The compression is good.....it should run.<br />Help!<br />Robert
