Question: How Do You Fix A Chainsaw That Won’T Stay Running?

How do you clean a carburetor?

How to Clean a CarburetorDilute cleaner.

In a large container, mix 1 part Simple Green Pro HD Heavy-Duty Cleaner to 3 parts water.Clear air filter.

Remove the carburetor.

Remove carburetor float.

Remove other removable components.

Soak and scrub components.

Rinse and dry.

Reassemble and replace..

What happens when you run straight gas in a chainsaw?

If you’ve put straight gas in the fuel tank, don’t start the engine. If straight gas is used, it can damage and ruin the piston and crankcase within a minute, as the gas doesn’t take long to burn out these sensitive parts. Drain the tank immediately into a separate fuel container.

How do you adjust the carburetor on a Jonsered chainsaw?

How to Adjust a Jonsered Chainsaw 2-Cycle Engine CarburetorLocate the three adjustment screws on the carburetor. … Start the engine and allow it to run.Turn the “L” screw counterclockwise to allow more fuel into the carburetor until the low setting runs smooth without sputtering.More items…

Why does my chainsaw blade get dull so fast?

You may be putting to steep of an angle on the cutters, which will dull quickly. You’re rakers may be too far down, which will contribute to a quick dulling chain. You may be cutting dirty wood. You may be slightly touching the ground with the tip of the bar.

Why does my chainsaw only runs on choke?

If your chainsaw only runs with the choke on, it is likely an issue with your carburetor. However, if the engine is plugged, the choke will pull more fuel through the carburetor’s idle circuit and allow it to run. … When the choke is turned off, the engine will die.

Why does my chainsaw dies when I give it gas?

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 is stalling when you pull the throttle trigger or it doesn’t reach its full power, adjust the high-speed (H) screw.

Is it bad to run an engine with the choke on?

Leaving the choke on while operating will result in excessive fuel consumption, irregular engine power performance and eventually may even damage the engine. … Both the manual choke system and the manual primer system engines may experience this similar symptom of running only when the fuel mixture is enriched.

What should you not do with a chainsaw?

Don’t ever run while carrying a chainsaw. Do try to avoid cutting with the blade tip, this will also help avoid kickback. Do try cut below shoulder height wherever possible. This will keep a chainsaw away from your face in the event of kickback.

How do you fix a chainsaw that won’t stay running?

Vent in the Fuel Cap is plugged – If the vents in the fuel caps are clogged the fuel becomes vacuum locked. Check the cap and clean it or replace. High-Low adjustments screws may need calibrating – If you have these screws in your chainsaw, adjust them by turning both screws clockwise until you reach the end – gently.

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.

Can you run a chainsaw without a fuel filter?

Well as long as the lack of that fuel filter doesn’t cause leaking at the inlet connection, then yes it will run fine …. but only for as long as whatever the filter might have caught and preventing it from clogging jets and passages.

What causes a chainsaw to run hot?

Chainsaw engines run at high temperatures, usually in the summer, so they can quickly overheat. … If dust, wood chips or other material blocks these systems, the engine will start to overheat. The engine also needs to expel hot air, so the muffler must also be kept clean to keep the engine from overheating.

Why does my chainsaw bog down when I give it gas?

Any internal or external factor leading to less supply of combustible air results in bogging down. This is partly attributed to clogged filters because of long working hours, and less air supply to the carburetor. These can be accompanied by smoking as a result of rich fuel and oil mixture.

Is the choke supposed to be open or closed?

The choke is a plate in the carburetor that opens and closes to allow more or less air into the engine. … When doing a cold start, the choke should be closed to limit the amount of air going in. This increases the amount of fuel in the cylinder and helps to keep the engine running, while it is trying to warm up.

Can you clean a chainsaw fuel filter?

Take out the fuel filter and immerse it in a strong solvent. You may also need to clean out the inside of the gas tank – this will also require a strong solvent like sodium hydroxide. … If you use your chainsaw regularly and you always have fresh fuel in the tank, you can skip this step.