why does my chainsaw keep stalling

ByMaksim L.

Nov 2, 2022

How do you fix a chainsaw that won’t stay running?

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. Depending on your chainsaw’s model it will have a washable or a conventional air filter.

Why does my chainsaw dies when I give it gas?

The reason for this is usually some clogging in the carburetor or in some other area that resists the flow of air and fuel. To overcome this you should check the filters and if there is any thick oil deposited on the surface. Clean the filters and oil tank and that’s all. Your chainsaw would not die now.

Why does my chainsaw stall out when idling?

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 chainsaw stop running when it gets hot?

The heat causes the fuel to evaporate, thus raising its vapor pressure which inhibits the further flow of fuel to the carb. Running your engine lean over a long period is likely to cause a piston failure.

How do you clean a carburetor on a chainsaw without removing it?

  1. First, mix some carburetor cleaning into the gasoline in your chainsaw’s fuel tank. …
  2. Start the chainsaw after combining the carburetor cleaner with the gas. …
  3. If you want to properly clean your chainsaw’s carburetor, put some spray B12 in the pilot air jet.

Why does my Stihl chainsaw bog down when I give it gas?

The reason for that may be you’re using the saw at altitude or the carburetor adjustment has simply slipped. The saw also won’t operate well at speed if the air filter or spark arrestor or carburetor are dirty.

Why does my chainsaw only run on choke?

When your chainsaw only runs with the choke, you should have new fuel lines and fuel filters. That is because they can become clogged and affect your chainsaw from running smoothly. Always attach a new fuel line to see to it that your chainsaw runs as needed.

Why did my Stihl chainsaw stop running?

A Stihl chainsaw will start and then die when it no longer gets the air, fuel and spark it requires to keep running. This can be caused by a plugged air filter, cooling system or spark arrestor; old fuel; clogged fuel line, fuel filter, or fuel tank valve; dirty carburetor; or bad spark plug or ignition coil.

How do I adjust a carburetor on a chainsaw?

Turn the idle speed screw adjustment clockwise with a flathead screwdriver until your engine chokes off at idle. This stage alters how well your chainsaw idles in certain situations. Adjusting this setting eliminates popping and stalling caused by changes in weather or gasoline type.

How do you tell if a chainsaw is overheating?

Sound: The chainsaw produces a different sound, usually a lower note. Performance Loss: A sudden or gradual drop in performance. Smoke: The chainsaw produces too much smoke that is of a different color than the usual exhaust smoke.

Can you overwork a chainsaw?

A dull chain will cause you to overwork the saw. Improper chain tension can cause the chain to break and lack of bar oil will cause the bar to wear more quickly and can cause the chain to derail causing serious injury.

How do you clean a vapor lock on a chainsaw?

To fix a vapor lock, keep your tank’s cap open for a while to allow the gasoline vapors to escape from the fuel lines. Alternatively, you can cool down your chainsaw by pouring cold water over the fuel tank while keeping the engine off.

How do you adjust the carburetor on a Poulan Pro chainsaw?

Insert a small flat-head screwdriver into the idle speed screw and turn it clockwise to increase the engine speed if it idles too slowly. As soon as the chain starts to move, turn the screw counterclockwise until the engine idles without dying and the chain stops moving for the correct idle speed.

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