![]() ![]() The following can also allow too much air into the engine: With so many moving parts in a 2 stroke engine, lots can go wrong, and so many possibilities for wear exist in the whole process. Age, wear and tear, and even a significant blow to the engine (from dropping your chainsaw, for example) can cause minor tears in the rubber. Since the hoses on most 2 stroke engines are mostly rubber, they’re not indestructible. ![]() A minor leak will not prevent your 2 stroke engine from starting, but it will undoubtedly contribute to the engine running inefficiently. I’ve spent time already discussing the importance of the correct mixture of air and fuel, so if your engine has air leaks in it, it may not be receiving enough fuel to combust. But you could have a foreign object in it or on it, which would completely impede airflow ( source). A no-air issue is rare because even the dirtiest filter still lets something through it. If it’s too dirty, it may not allow enough air to pass through it to mix with the fuel. If the fuel isn’t evaporating properly, you can put more fuel in the chamber to get it to combust. With more air, there’s less room for fuel. So you need a way to let air into the carb. Still, when the engine is cold (like when you’re beginning your day of chainsaw operation), the fuel doesn’t evaporate properly. When fuel enters the carburetor, it needs to evaporate to combust most efficiently. You use the choke valve in a small engine to enrich the fuel mixture to a higher level the engine typically uses. Spray the plug with brake cleaner, let it soak, then wipe it off.Īlso see Two-Stroke Engine Has No Spark: Why and How to Fix It. The buildup cuts down on the plug’s ability to conduct electricity. You’ll need to replace the plug and remedy the running-too-hot issue. Oil has made its way into the combustion chamber.Ĭheck (and likely replace) the faulty gasket. The plug doesn’t fit your 2 stroke engine.Ĭheck your owner’s manual for the correct part number and install the right size. ![]() Ignition timing issues, engine overheating, or a clogged combustion chamber.Īddress the combustion chamber first, then check for possible causes of overheating, and finally, adjust the timing if necessary. Pre-detonation is occurring in the engine. Replacing the spark plug wire may be necessary. The choke may be stuck somewhat open, there may be carburetor issues, or your spark plug wire may be faultyĬheck that the choke valve and carburetor work properly they may need service. Symptomįuel isn’t burning completely, and the leftover materials build up on the plug. While the flooding issue can easily make the spark plug too wet to function properly, your engine might not start because the spark plug isn’t working correctly for several other reasons. I’ve touched on this a little already, but if the spark plug can’t fire, you can’t get the necessary combustion that makes a combustion engine, well, a combustion engine. If you’ve ruled out all the other causes of flooding, you might want to take the engine in for service ( source). If you’re comfortable with the task, keep in mind that it’s a long and labor-intensive process, and if you don’t put everything back together just right, you’ll have problems. If the issue lies with your carburetor, you may find that disassembling and cleaning it is above your pay grade. Dry the plug and reinstall it in the engine.Close the choke and pull the engine a few times (without the spark plug, you can’t possibly start the engine, but you’re pulling on it to help clear the combustion chamber).Remove the plug (if you’re using a chainsaw, the scrench included with your saw has a spark plug wrench on one end of it).Pulling the plug out and drying the business end of it will almost certainly allow the engine to fire up despite the extra gas, but it’s not quite that simple, as you’ll need to do a couple of things: The problem likely isn’t that the plug needs replacing, but that it’s gotten wet from the excess fuel. I like this particular product because it’s affordable and gets the job done. If you don’t have time to wait, another solution is to pull the spark plug and replace it with one like this JRL Spark Plug (available on ). Once the extra fuel leaves the chamber, you won’t have a flooded engine anymore, and all will be right with the world. Given time, the extra fuel will evaporate from the combustion chamber. If the issue is that you overprimed the engine or that you forgot to open the choke, the easiest fix is to wait a bit. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |