What is the purpose of a decompression valve on a chainsaw?

Asked by: Matthew Reed

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 do you use a chainsaw decompression valve?

All you do is you push it in put your choke on and so forth. And start it up Andy decompression valves going to be open until it. Starts.

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 does a decompression lever work?

When we pull the decompression lever, It opens the valve of combustion chamber of engine which leads to low the compression. As result the piston can move more freely in cylinder for starting the engine.

What is the purpose of a compression release?

A compression release mechanism works to ease the starting of internal combustion engines by allowing them to spin up to starting speed without having to work against the pumping action of the pistons.

How do you use a Stihl decompression valve?

When the saw is either cold or warm it doesn't matter you push this in and that cuts back on the compression of the engine until it starts to make it easier for you to pull the rope.

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 is a compression start?

Compression ignition is also commonly referred to as diesel engine, largely because it is a staple of a diesel ignition. Gasoline requires the spark ignition in order to start, but diesel can be started through this alternative means of ignition.

What is automatic compression release?

Automatic Compression Release (ACR) valves reduce the strain of starting your high performance motor by reducing cylinder compression – automatically! The engine is easier to turn over resulting in less wear on your starter and battery. After start, the ACR valves close to restore full compression.

Do cars release compression?

Some engines, especially small engines, have compression release valves so that it’s easier to turn the engine when you first start it because there is less compression in the cylinder. Examples would include the Ducati 1199, or more in my field, the Kohler CV460S. How do they work?

What is engine decompression?

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. There are two different type decompression valves used in manufaturing and design. 1.

What is the purpose of the flywheel?

flywheel, heavy wheel attached to a rotating shaft so as to smooth out delivery of power from a motor to a machine. The inertia of the flywheel opposes and moderates fluctuations in the speed of the engine and stores the excess energy for intermittent use.