When the engine is running, the piston moves up and down inside its chamber, drawing in a combination of air, fuel and oil. … As the piston moves upward and compresses the air and gas combination, the spark plug produces a spark that forces the piston back into a downward motion.

How does a chainsaw ignition system work?

Electrical currents run through the ignition coil and transmit electricity to the spark plug. The electricity creates sparks within the spark plug, and the sparks ignite the fuel in the engine, enabling the chain saw to run. Testing the ignition coil at home is simple to do and requires minimal tools.

Why does my Poulan chainsaw dies 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 is my Poulan chainsaw not starting?

If your Poulan chain saw won’t start, the first thing to check is the fuel. … Then turn the saw on, hold it firmly and pull the start rope in short, brisk pulls until it starts. If it doesn’t start within 15 pulls, the spark plug is likely wet-fouled. Remove it and check for moisture on the electrode.

How does the brake work on a Poulan chainsaw?

When the hand guard is pushed forward, the brake engages, tightening the metal band around the clutch drum, and bringing the chain to a quick stop. … This article provides step-by-step instructions for removing and installing the chain brake kit on a Poulan gas powered chainsaw.

Why is my Poulan chainsaw flooding?

Does your chainsaw fail to start and you don’t know why? There could be various causes: incorrect fuel mixture, carburation not calibrated properly, or a wet spark plug. Neglecting to look after a chainsaw can lead to malfunctions such as flooding. …

How does a chainsaw spark plug work?

The spark plug in a Stihl chainsaw engine — or in any engine — is a simple device. Each time the engine flywheel completes a revolution, a magnet attached to it induces an electric current in a static magnet, and that current generates a spark across the plug’s electrodes.

Why does my chainsaw cut out when I rev it?

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 the filter becomes clogged, not enough fuel will reach the engine for it to run properly.

How tight should a chainsaw chain be?

A properly-tensioned chainsaw chain should still be just a little loose on the chainsaw guide bar, but the chain needs to be tight enough that you can’t pull the drive links out of the bar nose.

What is a chain brake on a chainsaw?

The chain brake is activated when the front hand guard, located near the saw’s upper handle, moves rapidly toward the chainsaw operator. When engaged, the chain brake stops the chain from rotating around the saw’s guide bar.

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How do you test a coil on a Poulan chainsaw?

Pull the start rope on the chainsaw and watch the end of the plug as you do. If you observe a spark jumping between the tips of the spark plug gap, it means the chainsaw coil is good. If there is no spark, it means the chainsaw coil will need to be replaced.

What is the spark plug gap for a Poulan?

A: The spark plug gap on all products is . 025-inch.

How do I know if my chainsaw spark plug is bad?

  1. Black, chunky carbon buildup spanning the gap between the sparking end of the plug and the hook-shaped metal piece overhanging the end.
  2. Dark carbon residue built up on the ends but not spanning the gap.

What are the symptoms of a bad spark plug in a chainsaw?

  • Gas mileage may be reduced.
  • Your check engine light is on.
  • You may notice an inability to fully accelerate.
  • Your engine may start to sound rough when idling.
  • You may have trouble starting your vehicle.
  • The engine might misfire more frequently.

What color should chainsaw spark plug be?

Re: reading a 2 cycle spark plug 40:1 is heavy and will contribute to plug problems…….. The plug should be light brown in colour after hard use, no excessive idling. Grey or white indicate over lean and trouble.

Why does my Poulan chainsaw only run on choke?

If your chainsaw only runs with the choke on, it is likely an issue with your carburetor. … If the carburetor is plugged, the engine will be starved of fuel and will not run. However, if the engine is plugged, the choke will pull more fuel through the carburetor’s idle circuit and allow it to run.

Why won't my chainsaw start when it's hot?

When your chainsaw quits after it gets hot, you either have a problem with gas flow being restricted into the engine or with the spark. This is a common occurrence on older-model chainsaws. By replacing your spark plugs and keeping your gas lines clear you can reduce the chances of this problem recurring.

What is the T screw on a Poulan chainsaw?

The screw on top — marked “T” — is for adjusting the fuel mixture while the engine is idling. Of the two underneath it, the one on the left is for adjusting the mixture when the engine is running a low speed, and the one on the right is for making the same adjustment when the engine is running at high speed.

How often should you change the bar on a chainsaw?

If you are looking for a general idea for how often you should replace a chainsaw bar, a rule of thumb is to replace the bar of your chainsaw once after you have gone through three chains on the same bar.

How often do you need to sharpen a chainsaw?

A chainsaw may only need to be sharpened once a year if it is rarely used, but a tool that is frequently used will need to be sharpened regularly to ensure that the blade doesn’t get too dull. On average, a chainsaw blade will retain its sharpness for about 3 hours of actively cutting through wood.

How many hours does a chainsaw chain last?

PitchGaugeLifespan1/4”.0.050”Around 4-5 years3250.050”Around 4-5 years3250.050”Around 4-5 years3250.058”Around 4-5 years

Who makes the Poulan chainsaw?

Poulan brand today The Poulan brand name is used primarily for outdoor power equipment, such as chainsaws, lawn mowers, and leaf blowers, aimed at the mid-level consumer market. Since Poulan is owned by Husqvarna, the two brands often share technologies.

How do you start a stubborn chainsaw?

Try to start the chainsaw after priming the carburetor. 5. Activate the choke by moving the lever to the full choke position and pull the starter rope 3 or 4 times to start the engine. If that doesn’t work, move the choke lever to half choke and pull the starter rope, 6 times maximum, to start the engine.

Can you run a chainsaw without a chain brake?

Although they’re prohibited from sale, chainsaws without a chain brake can still be used by their owners, and service agents can still repair them at the request of their customers.

How do you start a chainsaw that has been sitting?

  1. Just let the saw sit for 30 min and the excess gas will evaporate.
  2. Remove the spark plug, dry it, crank over the engine a few times to dry the cylinder. Now refit the plug and try again.
  3. Set the switch to “On”, set throttle to fully open, set choke to “Off” and crank over the engine.