To turn on a Stihl Farm Boss chainsaw, first make sure that the chain brake guard is disengaged. Find the starter grip and power switch, located on the rear handle. Make sure the power switch is in the “Off” position, locate the primer bulb and press it around four-to-five times, ensuring that you can feel the fuel moving through the fuel lines.
Pull the starter cord to prime the engine and then position the power switch in the “on” position. Next, pull the starter grip and the engine will start. If the engine does not start, turn the power switch to “Off”, repeat the priming steps, and then try again.
After the engine is running, adjust the choke for starting by pushing it up and then fully down, if needed. Allow the engine to warm up before engaging the chain brake, and you’re ready to start cutting.
How do you start a Stihl chainsaw without flooding?
Starting a Stihl chainsaw correctly without flooding is important for getting the most out of your machine. First, make sure the chain and bar are properly lubricated and tensioned. Once that’s done, begin by setting the chainsaw on the ground, with the air filter cover facing up.
Now, flip the choke lever to the choke position. Make sure the switch on the side of the chainsaw is in the “stop” position. Next, press the primer bulb several times until you see fuel pumped into the carburetor.
Now, pull out the decompression valve, then pull the starter grip. As soon as the engine fires, move the choke lever to the Run position and allow the engine to warm up for three to six seconds before cutting.
If the engine fails to start, try repeating the process again, paying extra attention to the position of the choke lever and the number of pulls. Finally, it’s recommended that you allow the machine to run for a few minutes before starting to cut to ensure the machine works properly.
If you follow all these steps, you’ll have no problem starting your Stihl chainsaw without flooding.
Why can’t I get my Stihl chainsaw to start?
The most common reason for startup issues is old or stale fuel. If the fuel has been sitting in the saw for a while, it can become contaminated or stale and cause the engine to run poorly or not start.
You should always make sure to use fresh fuel and replace it every few months if you’re not using your saw often. Additionally, if your chainsaw has a spark plug, you may need to replace it if it’s worn or damaged.
A spark plug with a gap that is too large or too small can prevent your engine from starting, so it’s important to make sure it is set properly. If the air filter is clogged, dirty, or damaged, this will also prevent your engine from starting.
You should also check your saw’s on/off switch to make sure it’s in the “on” position and not stuck in the “off ‘mode. Finally, you should double check your throttle setting to make sure it’s in the right position.
If all of these things are checked and still the saw won’t start, more serious mechanical issues may be causing the problem, so it’s best to take the Stihl chainsaw to a qualified repair center.
Do you start a chainsaw with the brake on?
No, you should not start a chainsaw with the brake on. Starting a chainsaw with the brake on can cause severe damage to the saw and can even result in serious injury. The brake is an important safety feature that is designed to stop the chain while it’s still moving when the saw is at idle.
When it’s engaged, the chain brake can stop the chain in just two one-hundredths of a second. When the chainsaw is started with the brake on, the chain can spin at full speed before the brake can engage, potentially causing kickback and serious injury.
Furthermore, the excessive friction caused by the spinning chain can damage moving parts within the chainsaw, shortening its lifespan. It’s important to always check that the brake is off before starting a chainsaw.
If you still have trouble starting the chainsaw, try checking the chain oil supply or the spark plug.
Why does my Stihl chainsaw keep flooding?
There are a couple of reasons why your Stihl chainsaw may be flooding. The most common issue is that the carburetor could be overfilled with fuel, either by the factory or by a previous user. This causes too much fuel to be brought in to the combustion chamber, making it difficult or even impossible for the engine to start.
The air/fuel mixture could also be incorrectly set, in which case the engine may not burn off the excess fuel and this can lead to flooding. Finally, the fuel tank may be venting incorrectly, in which case the fuel can be delivered at too high a pressure and this can also lead to flooding.
It is important to always read and follow the instructions in your owners manual to ensure that the engine is running optimally. If the issue continues to persist, it is best to take your chainsaw to an authorized dealer for service or repair.
How do you start a flooded 2 stroke engine?
Starting a flooded two-stroke engine can be a challenge, but there are a few steps to help you get it running again. First, remove any spark plugs and crank the engine a few times to remove any excess fuel from the cylinder.
Next, turn the choke off and use the recoil starter to attempt to start the engine. If the engine does not start, depress the primer button multiple times and pull the recoil starter again. Once the engine is running, it is important to keep it running periodically to allow the engine to warm up.
If the engine stalls, simply repeat the steps above. Additionally, it is always a good idea to have a professional check the carburetor, spark plugs, and fuel lines for any damage or deterioration that could be inhibiting the engine from starting in the first place.
How do you adjust H and L screws on a carburetor?
Adjusting the H and L screws on a carburetor is relatively simple as long as you have a basic understanding of the purpose of each type of screw. The H screw (also known as the high-speed screw or the needle valve) is used to adjust the air-fuel mixture at higher RPMs.
On the other hand, the L screw (or low-speed screw) is responsible for the air-fuel mixture at lower RPMs.
To adjust the H and L screws on a carburetor, you’ll need an accurate tachometer to read the engine RPMs and a screwdriver to make the adjustments. To start, you’ll want to make sure the carburetor is clean of any dirt or debris.
This is especially important if the carburetor hasn’t been serviced recently.
For the H screw, you’ll want to start the car, adjust the idle so that it’s right on the low-speed setting, then as the engine begins to accelerate, adjust the H screw slowly and gradually to see how far you can turn it before it causes the RPMs to suddenly change.
It’s best to only turn the H screw 1/8 turn at a time, wait a few seconds to let the engine adjust, and then observe how the engine is responding. If you’re lucky, you might find the perfect spot where you can get a nearly smooth and steady increase in RPMs without any sudden changes in power.
For the L screw, start by turning the engine off. Then, holding the throttle completely open, turn the L screw 1/8 turn and then wait to see how the engine responds to the adjustment. If the engine stalls, turn the L screw slightly further until the engine starts.
After the engine starts, release the throttle and adjust the idle until it’s where you want it. If the engine feels like it’s going to stall after revving up, the L screw might need to be tuned further.
It’s important to note that during this process, you’ll want to check the engine’s RPMs with a tachometer to make sure that the idle RPM is stable.
Once you’ve made both adjustments, it’s important to monitor the engine’s performance and tune the carburetor further if necessary. With a little bit of trial-and-error, you should be able to achieve the perfect air-fuel mixture for your carburetor.
What does H and L mean on Stihl chainsaw?
H and L on a Stihl chainsaw refer to the components of the chain brake assembly. The H stands for “Hand” which is the part of the chain brake that activates when the operator’s hand is removed from the handle of the chainsaw.
The L stands for “Lever” which is the manual lever used to activate the chain brake in situations where the hand brake cannot or should not be used. The chain brake is a safety feature on Stihl chainsaws that is designed to prevent the chain from spinning while the saw is running.
Why is my chainsaw idling high?
There could be several reasons why your chainsaw is idling high. It is common for chainsaws to idle high, but it is usually caused by an issue with the carburetor. One potential cause is an obstruction in the carburetor, such as a clogged fuel filter or stuck needle valve.
When an obstruction such as this happens, the engine will draw more fuel, resulting in a higher idle.
Another possible cause is an air leak somewhere in the fuel line, which also causes too much fuel to enter the engine. It is important to ensure that everything is tightly sealed and there are no breaks or bubbles in the fuel line.
Lastly, the cause of a high idle could be the result of a worn or broken chain. Over time, chain links can become worn or even break causing the chain to slip, resulting in the chain not being in contact with the cylinder, which can result in an unstable idle.
In order to fix a high idle, you should always start by checking the chain and making sure it isn’t worn or damaged in any way. If the chain appears to be fine, then inspect the carburetor and the fuel line for any obstructions or air leaks.
If there are none, then you may need to adjust the carburetor settings or even pour a cleaner into the carburetor to clean it out.
What fuel does STIHL recommend?
STIHL recommends the use of clean, fresh, unleaded regular gasoline with a minimum octane rating of 89 (RON 91). It must not contain more than 10% ethanol. The use of any fuel with more than 10% ethanol content may cause damage to your engine and may void your STIHL warranty.
All gasoline-powered STIHL products require engine oil specifically designed for two-stroke cycle engines. STIHL recommends STIHL HP engine oil to ensure optimal performance and perfect fuel combustion.
The use of any non-approved engine oil is classified as misuse, and may void warranty.
What is the mixture for 50 to 1?
The mixture for a 50:1 ratio is 50 parts gasoline to 1 part oil. So for every 50 parts of gasoline, you would add 1 part of oil. Specifically, for every 1 gallon of gasoline, you would need 2.6 fl oz of oil.
It is recommended to use an oil designed for two-stroke engines. Precise ratios are important for two-stroke engines, as they rely on the oil in the fuel mixture to lubricate the internal components during operation.
Too much oil can cause the engine to run rich, while too little oil can cause engine damage due to lack of lubrication.
What is the proper gas oil mixture for a chainsaw?
The proper gas oil mixture for a chainsaw depends on the model of saw and the manufacturer specifications. Generally, for two-stroke engines, it is recommended to use a 50:1 ratio of unleaded gasoline and two-stroke engine oil.
This ratio is equal to 3.2 ounces of oil to one gallon of gasoline. It is best to match the oil type to the type recommended by the saw manufacturer, usually either synthetic or conventional two-cycle oil.
Some modern chainsaws may require a special “premix” oil, which can be purchased at a local hardware store. It is important to always use fresh, clean fuel and oil and dispose of the used fuel and oil properly.
Additionally, it is important to ensure your fuel and oil tank is sealed properly to ensure optimal performance of your saw.
How do you mix a 2 stroke STIHL?
Mixing fuel for a two-stroke STIHL engine is a simple process, yet it’s very important to get it right. To achieve the desired fuel mixture, you need to combine a high-grade gasoline with a two-stroke air-cooled engine oil.
It is recommended to use STIHL brand oil to ensure optimum performance for your STIHL engine. When filling your fuel tank, simply add 1 part oil to 50 parts unleaded, premium grade gasoline. When mixed and shaken properly, the fuel should have a light amber color.
For optimal engine protection, fill your tank with enough fuel for only one tankful of operation, as the oil will begin to break down over time and should not be reused. Before using the gas-oil mix in your two-stroke STIHL engine, be sure to read the instructions in your manual so that the fuel is mixed correctly and safely.
Can you use any 2-stroke oil in STIHL chainsaw?
No, it is not recommended to use any 2-stroke oil in STIHL chainsaws. Using the wrong oil in a STIHL chainsaw can lead to problems such as poor performance, increased fuel consumption, fouled spark plugs, and accelerated wear of parts.
It can also invalidate the warranty. STIHL recommends that only its original oil, made specifically for its products, be used. STIHL oil is specially formulated to lubricate the engine, reduce wear, and protect internal components from corrosion.
Additionally, it helps to reduce exhaust emission levels and ensures optimum engine performance.
What is the correct ratio for 2-stroke fuel mix?
The correct ratio for a 2-stroke fuel mix is usually 50:1, which is a mixture of 50 parts of unleaded gasoline (no more than 89 octane) and 1 part of 2-stroke oil. It’s important to use a good quality oil designed specifically for 2-stroke engines, like those available from well-known oil manufacturers.
Mixing correctly is essential for the engine to run correctly and provide optimal performance – too much oil can cause smoke, while too little oil can cause serious damage to the engine. Additionally, higher octane gas is important to prevent engine knocking and increase performance.
How much oil do I add to 5 Litres of petrol?
For most petrol engines, a standard oil-to-fuel ratio is 50:1. This means that for every 5 litres of petrol, you would need to add 100 millilitres (mL) of oil. If your engine requires a different oil-to-fuel ratio, always consult your owner’s manual for the correct amount that’s needed.
It’s important to always use the correct oil-to-fuel ratio to ensure optimal performance of your engine.