Home › Forum › Ask A Member › 80 merc 1984 dies out after 1/2 throttle › Re: 80 merc 1984 dies out after 1/2 throttle
Most problems like that are fuel related but maybe not. You might want to invest in a good quality squirt oiler can. You can put two-stroke gas mix in it. Run the engine until it dies and won’t start. Immediately, go back to the engine with your squirt can of gas and spray a few strokes in the carbs. Try to start. If the engine fires off briefly, your problem may be gas delivery or carbs. If not, you may either have a spark problem or it flooded out, somehow. If it doesn’t fire on the squirt gas, pull the plugs out and check for whether they are soaked with gas (or even water.) If soaked with gas, you might want to do a spark check. Put the plugs back in first, so you don’t blow yourself up. If there is spark, and it still won’t start, try disconnecting the fuel hose from the engine, give it lots of throttle in neutral, NO choke and see if it will start. I doubt it is flooding at higher speeds, yet will idle well; but you have to rule it out anyway.
Mercurys have a high and low speed ignition system. Once in great awhile, it can be tricky to catch it. But let’s not go there yet. Try the gas things first.
Long live American manufacturing!