IMO the Electric Chainsaw has a place in working fire wood at home only in my case. My local mechanic said it could be two things: the flow meter (sensor next to airfliter) or the throttle sensor. This hesitation was resolved with a carb tuning adjustment. Maintenance Tips and Factors Affecting Lifespan. As we have seen there are a number of different parts that can react to the cold weather which in turn causes your engine to hesitate because of the cold weather. Most likely carb. Before checking the fuel pump diaphragm itself, which is inside the carburettor, first check the cap that keeps the diaphragm in place. In my experience, there are two possible causes of this 'bogging down of the engine' and to resolve this the manufacturer's manual is required or alternatively a little internet investigation. Two stroke engines run on a mixture of petrol and oil and this mixture has a limited shelf life. Stihl Chain Saw poor acceleration, erratic idle - YouTube 0:00 / 4:13 Stihl Chain Saw poor acceleration, erratic idle Auto Resource 40.9K subscribers Subscribe 21K views 5 years ago This time. I pressed it back in with an eraser or etc. They can go faulty and cause the engine to run lumpy under acceleration. myimages[6]="../../../images/top-banner/EZ-junior.jpg" It's vital that the gaskets are in good working order, because if they're not each time the piston goes up to draw an air fuel mixture it can also draw in air if there's any damage around the gasket. I feel, I have seen it in most I have cleaned. However if your throttle position sensor isn't working right then your computer isn't going to get the right signals about how fast you're trying to go and in turn that means you won't be getting the right mixture of air and fuel into the combustion chamber at the right time. It is an important piece of safety equipment on the saw. Issues with the fuel system. But if you are keeping it old school for now, here's a it is sharp. How To Get FREE Junk Car Pickup For Cash? That's of course down to fuel starvation - if you suspect that the fuel tank cap is at fault slightly unscrew it to allow air to come through so it's doing the job of the actual valve itself. Not a daily temperamental deal. Husqvarna 455 Rancher Review My Honest Opinion. When I give it any gas it dies almost instantly. If the fuel injectors get worn out or clogged, then they won't be able to spray the correct amount of fuel in. If your saw has a limiter on it you might only be able to adjust in the cut (with the help of an assistant) or with times tests. var ry=Math.floor(Math.random()*myimages2.length) Engine hesitation is something that you may have experienced but weren't sure what it was. The best gasoline for a chainsaw is mid-grade gasoline with an octane rating of at least 89. I have every thing bought..its now a matter of demo and make my kitchen what I see in my minds eye.