Re: 1984 Evinrude 140 Help,
Re: 1984 Evinrude 140 Help,
Do you have a fuel/water separator on board? If you do, depending on style, you may want to change the element or drain it. Your problem sounds really familiar. If you don't have one, please install one asap. You will be amazed as how many problems with the motor are iliminated with one. Also, the motor will run rough especially during idle a vacuum leak is suspect around the gaskets. You can find out by spraying a aquaous solution with soap around the backing plates or the carbs and visually inspect the bubbles. (maybe a carburator mounting bolt has become loose?) Finally, without taking the carbs off, you can check the low and high speed jets by just unscrewing them, and spraying carburator cleaner through them as well. In fact, you can spray carburator cleaner through them without removal, just use the little tube provided. A good squeeze and you done. But that doesn't fix the problem, only details if more exploratory is needed, and usually does. Those little tubes from the bowls get clogged with a rubbery-greasy substance. Caused by the ethanol additives that eat away at the interior fuel lines that get clogged in those little tubes causing a rough or coughing symtom. Another cleaner you can use is break cleaner or (1,1,1) It is dry cleaning fluid that can breakdown the residue of the ethanol breakdown of rubber components. Are the jets spitting fuel? Are the fuel lines loose? If you do a carburator rebuild, make sure your floats are calibrated throughout the 4 evenly. Lastly, you should consider replacing all the fuel lines with new and the proper hose straps put out by Bombardier. A dealer item, well worth the money for peace of mind. Good Luck!!
