If the operator has repeatedly been trying to start the chainsaw through the recoil starter system, they may have accidentally flooded the engine with fuel. If you believe fuel has flooded the chainsaw engine, pull the starter cord several times while holding the throttle, dry and replace the spark plug, and then try starting the chainsaw again. Gasoline will start to deteriorate if left unused and sitting, so if the chainsaw hasn’t been started in a while, be sure to check that old fuel is not collecting inside the chainsaw.
To clear excess fuel from the carburetor, place the choke lever in the Off position, hold the throttle trigger fully open and pull the starter rope 5 or 6 times. Try to start the chainsaw after priming the carburetor. 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.
Here, we look at the top 11 reasons why your chainsaw won’t start. Another common reason a chainsaw won’t start is that the sparkplug is old, dirty, damaged or not correctly attached. If the temperature is too low, it can make it hard to start a chainsaw.
It is another reason why chainsaws are so hard to start. So in cases where it’s become difficult to start a chainsaw, then you should consider the temperature as a factor. It is amongst the main reasons why are chainsaws so hard to start.
Many homeowners have had chainsaws that are hard to start when it’s cold. The main reasons why your chainsaw is often hard to start when cold are;. How to fix a chainsaw that won’t start when it’s cold outside.
chainsaw is very hard to start Related Question:
What makes a chainsaw pull hard start?
If your chainsaw is hard to pull, here are some common causes: The pully system is snagged or stuck. The starter assembly is stuck or sticky. The housing may be damaged.
How do I make my chainsaw easier to start?
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.
What causes a chainsaw to have too much compression?
Many problems with compression are related to fuel. Old or bad fuel can cause lots of headaches with yard equipment. Try draining any of the gasoline mixture left in the gas tank and add fresh fuel. If this does not solve the problem, it may be related to excessive fuel caused by problems in the gas lines and filters.
What causes a chainsaw to vapor lock?
Vapor lock occurs when the fuel (usually gasoline) within the fuel delivery system overheats and vaporizes too rapidly. The resulting excess gas bubbles accumulate to the point of actually blocking normal fuel delivery.
What does a decompression valve do on a chainsaw?
What is a decompression valve? A decompression valve releases some of the compression from the combustion chamber during the starting procedure, making the engine easier to turn over when pulling the recoil rope.
Can you push start a chainsaw?
The biggest advantage of an electric chainsaw is that you don’t have to pull a cord and it needs minimum effort to get it started. You can start it by just pushing a couple of buttons and there is no throttle to open.
Will a chainsaw run with low compression?
Most chainsaws will operate well with compression readings that range from 100 to 160 psi. After checking the function of the starter assembly, the operator can move on to determining if compression is dropping or increasing.
How much compression should a Stihl chainsaw have?
According to Stihl USA, the minimum compression reading for their chainsaws should be around 110 psi. Some individual engines may run a bit higher or lower and the temperature of the tool can affect readings. A cool chainsaw runs low, while a hot engine that’s been running for awhile will usually be higher.
Why can’t I start my Stihl chainsaw?
Dirty or clogged fuel tanks, dirty fuel filters and lines, loose fuel hoses, dirty air filters and a dirty carburetor can all restrict fuel flow. Check, clean and replace all the fuel system parts before moving into the internal engine, as gas problems create a majority of starting problems.
Should I start chainsaw with brake on or off?
Check the Chain Brake When engaged, the chain brake stops the chain from rotating around the saw’s guide bar. When using a chainsaw, you should always start it with the chain brake engaged so the chain does not move.
How do I know if my chainsaw spark plug is bad?
If it’s not producing any sparks at all, your chainsaw needs a new plug. If there are only a few sparks coming out of one side of the electrodes but none on the other side, it’s not bad enough for you to worry about, but it will affect your performance.
Do Stihl chainsaws have a decompression valve?
To make starting the STIHL 4-MIX engine easier, the engine has been fitted with a decompression system which extends the valve opening times when starting. Starting the prize-winning STIHL 4-MIX engines is thus convenient and quick.
How long to wait if chainsaw is flooded?
Many people wonder if a flooded chainsaw will fix itself? The answer is yes, but not always. By letting the chainsaw sit for about 20 minutes it will allow some of the fuel inside the engine to evaporate.
How do you clean a chainsaw carburetor?
Let the chainsaw run at low RPMs/idle for a while. This is to let the cleaner run through the carburetor, the fuel lines, and the idle engine. The cleaner will wipe remove the gummy residue blocking the components to create a clean passageway for the air and fuel. As the RPMs begin to increase, turn down the idle knob.
How does a choke work on a chainsaw?
The choke position increases the richness of the air and fuel mixture the carburetor sprays into the cylinder. With the master control lever in the choke position, the flow of fuel into the engine increases and the flow of air decreases.