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.
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.
A chainsaw can be a very useful tool for homeowners and professionals alike, until it stops working! When your chainsaw won’t start, it can cause a setback with your project and could even set you back financially for repairs. In this chainsaw starting guide you’ll learn the common problems that can arise with chainsaws as well as possible solutions. The recoil starter assembly consists of several elements that initiate the engine when starting the chainsaw such as the recoil starter pulley and rewind spring.
why is my chainsaw so 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.
Why is a Stihl chainsaw so hard to start?
Problems starting a Stihl chain saw can be related to gasoline storage, spark plugs, and incorrect starting procedures.
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.
How long does it take to Unflood a chainsaw?
The first option is the easiest since it doesn’t require any effort on your part, it just takes time. 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 the carburetor on a chainsaw?
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 do I adjust the compression on my chainsaw?
Too much or too little air intake can negatively affect engine compression. In order to increase compression in your Poulan chain saw’s Kohler engine, manually adjust the air valves via the two rocker arms under the air valve cover.
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 long to wait if engine is flooded?
Perhaps the best remedy for a flooded engine is time. Simply open the hood of your car and let excessive fuel evaporate for as long as you can. After about 20 minutes try starting your car again without hitting the gas pedal.
Can you use starting fluid on a chainsaw?
Removing the air filter, spraying starting fluid into the carburetor and pulling the starting rope is another quick way to clear out the engine. Starting fluid creates a leaner fuel mixture that ignites more easily, and the operation of the engine clears out the combustion chamber automatically.
How long does a spark plug last in a chainsaw?
A poorly functioning engine in a Stihl chainsaw can mean more work for the operator and can even be dangerous. Consequently, Stihl recommends replacing the spark plug after every 100 service hours.
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.
Will a flooded engine fix itself?
Will a flooded engine fix itself? No. You have to take appropriate measures to restore the fuel and air balance in your car’s engine.