Re: 84' mariner 115hp needs help
Hi, Herc, and welcome to iboats.<br />I think you still have a dead lung or two. To determine which one, ground-out one plug wire at a time..I say ground-out,as opposed to pulling the plug wire, to avoid damaging the CD.<br />If you get a decrease in RPM, or the engine stalls, that cylinder was operating. If you run-across any that seem to have zero effect, that cylinder is dead. Pull a compression test, and examine plug condition. The plugs allways have a story to tell about how that cylinder is performing.<br />Once you've found the dead one(s), take a spray bottle with some mix in it, and spray in the dead one's carb, and see if it picks-up temporarily. If it does, you can rule-out ignition probs, and concentrate on fuel-related. If it has no effect,compression is good, than you have to troubleshoot the 'lectronics. Good luck,and let us know how it goes.
