When the throttle is opened all of the way the majority of the fuel flows through the main jet. My 10 year old husqvarna trimmer only requires maybe a 1 minute or less to warm up, before I can advance the throttle with out hesitation. Have had cary apart and cleaned. No ... Stihl ST251C Chainsaw Stalls when I depress the throttle. This sticky fuel can clog up the carburetor and cause the chainsaw engine to stall. chainsaw; Forums. Help. The fuel line is connected to the carburettor, which can be found near the throttle at the rear of your chainsaw. A clogged fuel filter is often caused by leaving old fuel in the chainsaw. I topped the tank off with a little straight gas and it ran fine after that. Over time, the spark arrestor can become clogged with soot. my power supply is a 20C 800mah LIPO battery. Enter model number to search for the required part specific to your product, Browse our parts categories to select from a variety of parts for your product. If the engine will idle but dies at full throttle the main jet in the carburetor may be plugged. The air filter may be clogged or dirty. It leans out on the cut usually on the bigger locust cuts. The spark arrestor is a small screen that prevents the engine from emitting sparks. A clogged carburetor is often caused by leaving fuel in the chainsaw for a long period of time. Weather is 30-50 when I'm cutting and I'm trying to run 40:1, 93 only. It bogs down it seems and stalls out when I open the throttle. In this video I show you how to easily fix a Poulan Chainsaw model 3818 that bogs down. I have run with new fuel, checked air filter, changed spark plug, checked the fuel tank breather and cleaned the carburetor (although I have not adjusted the settings on this as there do not appear to be any of the usual screws for doing so). Join Repair Clinic's VIP email list for 10% off, plus other discounts and tips! Turn the high mixture screw counter clockwise 1/4 of a turn and see if it makes a diff. The carburetor might be clogged. There is a fine screen over the exhaust called a spark arrestor. Have you adjusted the carb mixture screws? Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. Relevance. To unclog the spark arrestor, remove it and clean it with a wire brush. This season I had terrible bogging when throttle was applied. Inspect the air filter to determine if it is clogged. Throttle trigger ... Chapter 3Chain Saw Use and Maintenance why does my chainsaw cut out after it ... or when you do get it started and it idles for a while then cuts out. The increase in fuel translates into an increase in engine speed. 2 Answers. I just took covers off and looked around again, blew some dirt out of places that would not likely make any difference (it was all pretty clean around the carb and throttle linkages). :thumbsup: Lateen Fuel Filter to check. If the air filter is clogged, the engine will get too much fuel and not enough air. Mine will stall if the ... husky 350. Chainsaw will idle but won't rev. A forum community dedicated to all Hobbyists. I am currently building a small scale aircraft and am using a xetronic 6A 2-3 LIPO ESC/BEC. If cleaning the carburetor isn’t effective, rebuild or replace the entire carburetor. I have a DIY micro Scisky based drone with banggood brushed motors, props and AIO FPV camera, My issue is, that when I throttle up, the video feed cuts out completely (just black and white lines moving up) and at full throttle the camera completely turns off. If the spark arrestor is clogged, the chainsaw may run stall or run rough. Once I get past these long warm ups, they preform really great. Outdoor Gasoline and Electric Powered Equipment and Small Engines - Chainsaw bogs down under load when cutting - I have an 18" Poulan "Wild Thing" 2375 that is only about a year old. It turned out to be too much oil in the gas. The three adjustment screws in the carburetor ((High speed, Low speed and idle) come in handy when preventing stalling. Today I took some time with the 460 Rancher. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. Shipping all 7 days! If the saw drops at full throttle, not enough gas or air is reaching that chamber. Adjusting the idle screw, for instance, is a corrective measure for a chainsaw stalling when idle. I've got a two stroke strimmer (new last summer). The fuel filter might be clogged. Rough idle cuts out when throttle applied. Help! As a result, the engine may stall or run roughly. Answer Save. not sure about your chainsaw, ... but when I applied throttle it would bog out and die. Cost me $130.00 Australian dollars. Dies when throttle applied. Some fuel will also enter the carburetor through the idle and transition circuits at full throttle but not nearly enough to sustain combustion on their own. 240Z | 260Z| 280Z | 300ZX (Past Z Cars) Car Forums When the trigger is pressed and the throttle is increased on a backpack blower, a metal wire pulls open a vent on the carburetor, allowing more fuel into the passages. I took the bar and chain off and ran it. Clean out you carburetor, and all the fuel lines, and change your spark plug, and clean your air filter out, and you should be good to go. I have an Stihl (model 009) several yrs old which has given me good service, however now it is giving me a problem. Main Hearth Forums. 1) Float is either stuck or saturated with fuel. You can also replace the spark arrestor. Stalling at full throttle Gemo I had the same fault and tryed everything like you. Appreciate the suggestion but the linkage is solid. So anyhow, I've ran about 25 hours and took it for a tune up. Also feels laggy. If old fuel was left in the chainsaw, drain the old fuel from the fuel tank and replace the fuel filter. Video cuts out, when throttle is applied. When you depress the trigger, a vent on the carburetor opens, allowing more gas to reach the mixing chamber.