Look the chain saw over, and clean any debris or stuck pieces of wood from all areas surrounding the chain. Sometimes a stuck chip of wood will keep the chain locked in place. … Use a screwdriver to help scrape oiled sawdust out of the nooks and crannies of a chain saw.
What causes a chainsaw chain to lock up?
Look the chain saw over, and clean any debris or stuck pieces of wood from all areas surrounding the chain. Sometimes a stuck chip of wood will keep the chain locked in place. … Use a screwdriver to help scrape oiled sawdust out of the nooks and crannies of a chain saw.
How do you start a Stihl chainsaw without flooding?
Pull the starting rope five or six times to clear fuel out of the combustion chamber. Replace the air filter and spark plug, and connect the spark plug wire. Leave the choke open and pull the starting cord several times. The chain saw should start.
Why won't my Stihl chainsaw keep running?
An engine stalls when it’s getting too much or not enough fuel from the carburetor. Stihl chainsaw carburetors usually have three adjustment screws: one each for idle, low speed and high speed. If the saw stalls while it’s idling, adjusting the idle screw, which usually is marked LA, should help.Why does my chainsaw dies when I give it gas?
Because your chainsaw will idle, but dies when it is revved up to full power, it means that the filter is only partially clogged; it will allow enough fuel to the engine to run on idle, but not enough to sustain full throttle. … If the filter becomes clogged, not enough fuel will reach the engine for it to run properly.
Why does my Stihl chainsaw bog down when I give it gas?
The Job of the Carburetor Without the right amount of air and fuel in the piston cylinder, the 2-cycle engine in a Stihl chain saw runs inefficiently and the saw loses power. … When the saw bogs down during cutting, it’s usually the high-speed screw you need to adjust.
Why does my chainsaw run then stop?
A clogged carburetor is often caused by leaving fuel in the chainsaw for a long period of time. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and cause the chainsaw engine to stall.
Are Stihl chainsaws hard to start?
Regular maintenance will help to ensure that your Stihl chain saw will always start. In addition, some storage steps can help with starting when the chainsaw has been left for an extended period. Problems starting a Stihl chain saw can be related to gasoline storage, spark plugs, and incorrect starting procedures.Do you start a chainsaw with the brake on?
Check the Chain Brake The chain brake is activated when the front hand guard, located near the saw’s upper handle, moves rapidly toward the chainsaw operator. … When using a chainsaw, you should always start it with the chain brake engaged so the chain does not move.
What is a throttle trigger lockout?Throttle Trigger Lockout Lever: A lever on the top of the throttle handle which must be depressed before the throttle can be activated. When the operator releases the throttle trigger lockout lever, the throttle trigger will lock in the idle position.
Article first time published onWill a flooded chainsaw fix itself?
Flooded means there is excessive fuel pumped into the engine which has displaced the vital ingredient of oxygen for starting. … Let your chainsaw sit for 15-20 minutes to allow the fuel to evaporate from the engine and then repeat the starting instructions. This method will work best with a mildly flooded engine.
Why won't my Stihl saw start?
If you can’t start the engine, the fuel may be contaminated if the saw has been in storage, and you should change it. … If starting is still difficult, use a toothbrush to clean the spark arrestor – located behind the muffler – and change the spark plug and fuel filter, which is located in the gas tank.
How do I know if my Stihl clutch is bad?
Does the engine loose revs, or the engine keep revving and just the chain stops? If the engine is still running at normal revs, and the chain slows down, then it’s a problem with the clutch. Worn out, gummed up, jammed springs etc. If the engine looses revs under load then it’s more likely a fuel or carb problem.
What is a chainsaw sprocket?
What is the drive sprocket? The drive sprocket and the clutch drum are connected to the saw motor. The sprocket is designed to drive the proper-pitched chain around the guide bar.
How tight should a chainsaw chain be?
A properly-tensioned chainsaw chain should still be just a little loose on the chainsaw guide bar, but the chain needs to be tight enough that you can’t pull the drive links out of the bar nose.
What does a clutch do on a chainsaw?
The clutch allows the engine to turn freely at low rpm [rpm=revolutions (turns) per minute] without moving the chain. They are separate. Unlike a four wheeler or truck, the chainsaw operator doesn’t have to engage the clutch or put the chainsaw in gear.
Why won't my chainsaw chain tighten?
If you can’t tighten the chain, you may not be implementing the proper tightening procedure. To adjust the chain, loosen the nuts that hold the guide bar in place. … Attempting to turn the tension screw without loosening the nuts first may be the reason you can’t tighten the chain.
Why does my chainsaw bog down when I hit the throttle?
If your chainsaw is bogging down when you give it throttle, this is often a sign of improper gas-to-oil ratio. If there is too much gasoline in relation to the amount of oil used, this is known as a “rich mixture” and can cause the chainsaw to run poorly.
How do you clean a Stihl chainsaw fuel filter?
Brush the air filter gently with a soft brush or wash it in warm soapy water then dry it. Do not use compressed air to clean it – compressed air can blow holes in the filter, allowing dust and debris into your carburetor.
How do you adjust a carburetor on a Stihl chainsaw?
They are the high-speed, low-speed and idle adjustments respectively. Determine the carburetor type before adjusting the high- and low-speed screws. To do this, turn the “L” screw clockwise as far as it will go, using a flat-head screwdriver, then turn it counterclockwise as far as it will go.
Why does my chainsaw rev too high?
The throttle valve (butterfly) simply cuts off the supply of combustible air/fuel and the engine stops. If this adjustment is set too high, the high idle speed will cause the centrifugal clutch to engage and the chain will run. This is a dangerous condition and should never be allowed.
Where is the choke on a Stihl chainsaw?
The choke position is the fourth setting on the master control lever. This setting is used to start the saw when its motor is cold. Stihl chainsaws denote the choke position using a nearly horizontal squiggle between two vertical lines at the lowest position on the master control lever.
Can you rev chainsaw with brake on?
Don’t Put the Pedal to the Metal With the Brake On Chain saws have a safety kickback braking mechanism that stops the blade by locking the clutch drum/drive sprocket. … If you hit the throttle hard while the brake is on, you can burn up the centrifugal clutch in just seconds.
