Start a stihl ms 251 chainsaw guide is here. The Stihl MS 251 is a powerful, mid-size chainsaw with a reliable carburetor. This means that the engine should start up easily and run smoothly. However, there are situations where an MS 251 will not start.
How to start a Stihl ms 251 chainsaw?
It is an easy to operate chainsaw that is suitable for both professional and domestic use. It has an 18 inch bar and chain, so it will cut through trees up to 20 inches in diameter. It also has an innovative automatic oiling system, which ensures the chain stays lubricated at all times.
Step 1: Get a feel for the chainsaw.
Fill the fuel tank with high-quality, low-sulfur diesel fuel. Check the oil level by unscrewing the cap on top of the engine. Add oil if necessary with a funnel and oil can. Place the spark plug boot into the spark plug hole and use pliers to tighten it down over the plug wire. Do not touch any metal parts while doing this or you may get shocked!
Place the choke lever in its “on” position (pointing toward you) by pulling it out then pushing it forward until it stops at this position. You should hear a click when you do this and see an orange mark on top of the lever itself which indicates where it should be set when using the choke. This will help ensure that your engine starts up easily after being started using a rope starter or pull cord starter (see below).
Step 2: Prepare the chainsaw.
Now you are ready to turn over your Stihl chainsaw! If you are using a pull cord starter: Hold onto one end of the pull cord tightly and give it two or three tugs until there is enough tension. The Stihl MS 251 is a very popular chainsaw. It can be used for cutting firewood, clearing land, and even cutting down small trees. Start a stihl ms 251 chainsaw is easy, but you will need to follow the instructions below so that you do not damage your saw or injure yourself.
To start the Stihl MS251, first make sure that the safety switch is on “off” and that there are no obstructions in front of the exhaust port. Next, fill up the fuel tank with unleaded gasoline (up to the brim). If you have trouble starting the engine after several tries, check to see if there are any obstructions in front of the exhaust port.
Step 3: Put on protective gear.
You can also try starting it without choking it at all by just pulling on the starter cord until it starts running smoothly. The choke should only be used when starting cold or from a dead stop to prevent damage to your engine or kickback from occurring due to excessive fuel delivery when cold. Once started, let go of the throttle trigger and pull back slightly on it until you hear an audible click (about 1/2 way). From here you can either keep pulling back on it until full power comes on.
The Stihl MS 251 is a chainsaw that has been designed to be easy to start, even in the coldest of weather. It is an ideal choice if you are looking for a chainsaw that can be used for commercial use or home use. The MS 251 has many features that make it stand out from other chainsaws. The MS 251 has an automatic oiler, which ensures that there is always enough oil in the bar and chain no matter how long you have been using it. The automatic oiler also prevents carbon build up on the bar and chain so that your cutting performance remains high throughout your work day.
Step 4: Make sure everything is in good working order.
The MS 251 also has an ergonomic handle which makes it comfortable to hold while you are cutting through tough branches and logs. The handle is made from high-quality plastic that offers superior durability compared to wooden handles found on other chainsaws in this price range.
The engine in the MS 251 runs at 3200 rpm which gives it plenty of power for tackling large jobs like cutting down trees or milling lumber right down to smaller jobs like felling branches or trimming bushes around your home or garden area. The engine also comes with a vibration dampening system which reduces vibration while you are using.
Step 5: Turn on the gas and prime the system.
Check the fuel. The chainsaw should be stored with a full tank of fuel. This is because the fuel absorbs moisture from the air, which can lead to starting problems when you try to use it. Check the spark plug. If there is no spark when you try to start the chainsaw, it may need a new spark plug. The MS 251 has an easy-access plug on top of its cylinder head, so replacing it is not difficult.
Step 6: Set the brake and choke.
Check your bar oil level. The MS 251 has a small reservoir just above its engine crankcase that holds 10 ounces (300 milliliters) of bar oil. If this reservoir runs dry, all sorts of bad things can happen — including overheating, which could cause damage to your cylinder and piston rings in addition to making starting more difficult or impossible altogether.
Step 7: Start your chainsaw the right way.
Make sure you check this reservoir regularly during use and refill it as needed with SAE 30 motor oil or equivalent. Prime the engine with fuel. You can do this by pulling up on the starter cord until you hear a few clicks. This will help prime the carburetor so it can better suck in fuel when you try to start the engine.
Pull up on the starter cord for 10 seconds straight. This will allow enough fuel into your carburetor so that it won’t flood when you turn your ignition key on. If you don’t pull up hard enough, this will not work and your saw might flood out as soon as you turn your key on.
Step 8: Warm-up.
Turn your ignition key on by rotating it counterclockwise about 90 degrees until it stops moving forward or backward (depending on what type of ignition system your saw has). Turn it back off again after you’ve done this step so that it doesn’t make any noise while you’re trying to start it up (this will disturb any wildlife nearby).
The MS 251 is a professional grade chainsaw that you can use to cut down trees, trim branches and clear brush. The saw is easy to start if you follow the instructions in this guide.
What if your brand new stihl ms 251 won’t start?
The first thing you should do is check the fuel. Make sure it’s fresh and hasn’t been sitting around for too long.
- If the fuel is good, try starting the saw again. If it still won’t start, check to see if there are any obstructions in the air filter or muffler.
- If there aren’t any obstructions, check to see if the spark plug connections are tight. If they aren’t, tighten them and try starting again. If this doesn’t work, replace your spark plug with a new one and try starting again.
- If that doesn’t work either, take a look at our troubleshooting guide for other possible causes of an engine not starting properly.
Check the fuel level in the tank and refill if necessary. You may have run out of fuel while working with your saw, but this can lead to problems later on. If you suspect that this is the cause of your chainsaw’s trouble, top off the fuel tank with fresh gas and try starting again.
Stihl ms 251 chainsaw troubleshooting
Check that there is enough oil in the crankcase and add more if necessary by removing the spark plug wire from its spark plug and filling up through the opening. The oil should be at least one inch above the top of its dipstick when you fill it up so that it has enough lubrication for proper operation of its engine parts during use. Make sure that your starter cord is fully wound up in its handle before trying to start up your saw by pulling on it twice as hard as normal while cranking.