Clean the internal parts of your carburetor now with…. A carb kit can be purchased to help clean and rebuild a plugged carburetor. Clean the internal parts of your carburetor now with carb cleaner, using a soft brush to get inside all the holes. If you notice damage or corrosion, it’s time to abandon the maintenance and simply purchase a new carburetor, as this one is beyond repair.
Stihl chainsaw carburetors usually have three adjustment screws: one each for idle, low speed and high speed. A clogged fuel filter is often caused by leaving old fuel in the chainsaw. If your chainsaw engine dies at full throttle, check the following parts: the carburetor, fuel lines, fuel filter, air filter, and muffler.
Because your chainsaw will idle, but dies when it is revved up to full power, it means that the filter is only partially clogged; it will allow enough fuel to the engine to run on idle, but not enough to sustain full throttle. If your chainsaw is bogging down when you give it throttle, this is often a sign of improper gas-to-oil ratio. The most common problems why a chainsaw does not stay running are: Spark Switch/Plugs.
“The chainsaw is pretty new, a Poulan 16”. Normal starting routine – prime, choke, pull about 3 times til it fires a little, then push choke off, pull a few more times till it starts. If it was running fine, I’d let that fast idle go 30 sec or so til warmed up, then pull the throtle which kicks off the auto fast, and it should drop into a normal idle mode, ready to start cutting.
To resolve any problems with filters you should replace the fuel filter which is usually found in the gas tank and can be removed and replaced quite easily. Issues with fuel can often result from a chainsaw having been sat idle for a long time. If your saw has been in storage for a while, gas left in the carburetor and fuel lines may have started to evaporate, leaving behind a type of varnish which clogs up the system.
chainsaw dies when i give it gas Related Question:
Why does my chainsaw stall when I give it gas?
Carburetor Adjustment An engine stalls when it’s getting too much or not enough fuel from the carburetor. Stihl chainsaw carburetors usually have three adjustment screws: one each for idle, low speed and high speed. If the saw stalls while it’s idling, adjusting the idle screw, which usually is marked LA, should help.
Why does my Poulan chainsaw stall when I give it gas?
A clogged fuel filter is often caused by leaving old fuel in the chainsaw. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the fuel filter and cause the engine to stall.
Why does my Stihl chainsaw bog down when I give it gas?
The Job of the Carburetor One controls the fuel mixture when the engine is idling, one controls it when the engine is operating at low speed and one is for high-speed fuel control. When the saw bogs down during cutting, it’s usually the high-speed screw you need to adjust.
Why does my chainsaw dies under load?
If the mixture of oil to fuel is too rich, too much oil is in the fuel and it leads to the engine losing power and dying. Open the fuel cap and pour the old fuel out of the tank into a disposable container. Mix new fuel in a gas can with a ratio of 50 to 1.
Why does my chainsaw dies when I turn it sideways?
Because the fuel covers the jets. When the bar points down or the saw is held sideways the jets no longer have fuel to cover them, it is air. The saw then runs lean and dies.
How do you fix a chainsaw that won’t stay running?
Clogged Air Filter – Check the air filter Your chainsaw’s engine needs the right supply of air to run properly. A clogged air filter can be the reason why your chainsaw won’t start or stay running. Find your chainsaw’s air filter and remove it. If it’s clogged or too dirty, wash it or replace it.
What is the carburetor adjustment on a Poulan chainsaw?
Other Poulan Chainsaw Carburetor Adjustments A basic procedure is to start the saw, turn the screw clockwise until the engine begins to stall for lack of fuel, then back the screw off until the engine stalls because it has too much fuel. The ideal setting should be midway between these points.
Why does my chainsaw only runs on choke?
When your chainsaw only runs if the choke is on the problem, in most cases, is a result of fuel supply problems or a faulty carburetor. To fix the problem you should check and clean the fuel system and carburator.
Why does my Husqvarna chainsaw dies when I give it gas?
A clogged carburetor is often caused by leaving fuel in the chainsaw for a long period of time. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and cause the chainsaw engine to stall.
Why does my chainsaw rev too high?
The throttle valve (butterfly) simply cuts off the supply of combustible air/fuel and the engine stops. If this adjustment is set too high, the high idle speed will cause the centrifugal clutch to engage and the chain will run. This is a dangerous condition and should never be allowed.
Why does my Stihl chainsaw loses power?
When your Stihl MS 170 chainsaw drops its power under full load, it generally means there is an improper mixture of fuel and air in your carburetor. When you depress the trigger, a vent on the carburetor opens, allowing more gas to reach the mixing chamber.
What does a spark arrestor do on a chainsaw?
The spark arrestor on your chainsaw prevents dangerous hot sparks from igniting fires while you’re working. If the arrestor is clogged or dirty, however, it will also prevent exhaust from leaving the motor, which can prevent it from running.
How do you adjust a Stihl carburetor?
Turn the H screw clockwise with a carburetor adjustment tool until the head is spinning as fast as it will go, then back off the screw carefully until the RPMs start to decrease. Turn the screw slowly clockwise again until the engine once again just starts to pick up speed.
Why does my chainsaw keep running?
The most probable – and easiest to fix – cause of chain rotation while the chainsaw engine idles is a poorly adjusted idle setting on the carburetor. The result is that too much fuel is delivered to the combustion chamber when the throttle is released, and the engine doesn’t really slow. says Chainsawr.
Why did my chainsaw suddenly stop?
The carburetor might be clogged and needs to be cleaned. A chainsaw’s carburetor mixes air and fuel to start the internal combustion engine. If fuel has been left in the engine for too long, it can become sticky and clog the carburetor, preventing it from starting. If the clog is minor, clean out the carburetor.