Like any other reliable brand, your Echo chainsaw may have various issues and stop working. Sometimes, echo chainsaw won’t start due to plenty of reasons like carbon buildup, faulty spark plug, clogged fuel filter, or defective ignition coil.
Whatever the reason, if your echo chainsaw falls under warranty, ask the dealer or manufacturer for repair.
Otherwise, read on to briefly understand why your echo chainsaw won’t start and how to fix it.

Echo Chainsaw Won’t Start: Possible Problems with Solutions
With lightweight, fancy features, power, and reliability, echo chainsaws are popular among professional woodworkers and DIY’ers. So if your new Echo CS 310 chainsaw won’t start, don’t delay troubleshooting.
The following are the most common reasons for preventing the echo chainsaw from starting, along with quick solutions:
Reasons | Possible Solution |
Carbon buildup | Replace the spark plug |
Defective spark plug | Clean the carburetor or replace it |
Bad Switch | Repair or replace the power switch |
Clog in the fuel filter | Replace the fuel filter |
Broken starters recoil spring | Replace starters recoil spring |
Recoil starter | Replace the recoil starter or pulley |
Defective Ignition Coil | Replace the ignition Coil |
Let’s dig deeper into the reasons!
- Carbon Buildup
Due to carbon buildup and an injured electrode, the spark plug gets damaged over time, preventing the chainsaw from starting. So if your echo chainsaw doesn’t start, check the spark plug for damage.
Solution: Use an ignition tester to verify if the spark plug is faulty. As a basic guideline, we recommend you replace the spark plug once a year to avoid this trouble.
- Defective Spark Plug
If you leave the residue of old fuel in the tank for a long time, it can build a limitation in the carburetor. Hence, you should always fill fresh fuel in the tank.
Solution: Using a fuel stabilizer can help you sustain the quality of the fuel. For better constancy, use a pre-mixed fuel and ethanol-free oil product.
Alternatively, you can clean the carburetor with a carburetor cleaner to remove the clog. If it doesn’t work, buy a carburetor repair kit to replace some parts or install a new one.
- Bad Switch
The ground wire or power switch may get damaged over time and prevent your echo chainsaw from getting the essential power to start.
Solution: Test the switch using a multimeter to verify the issue. Repair or replace the switch if it’s the source of the problem.
- Clog in The Fuel Filter
Another common reason that may prevent your Echo chainsaw from starting is the clog in the fuel filter. Old or bad fuel can also build a clog in the fuel filter and have consequences.
Solution: Replace the filter with a new one.
- Broken Starter Recoil Spring
The rope won’t recoil onto the pulley starter’s recoil spring is damaged. As a result, your echo chainsaw won’t start.
Solution: Replacement is a better solution here. Though you can only replace the recoil springs, replacing the whole recoil starter will be much easier.
- Recoil Starter
The recoil starter can be unable to connect with the saw engine’s crankshaft. Hence, your echo chainsaw may refuse to start.
Despite this, the recoil starter pulley pulls back the starter rope when it’s not in use. If the recoil pulley is wrecked or stuck, it won’t pull back the rope, resulting in the chainsaw engine won’t start.
Solution: Replace the broken pulley or the starter assembly to solve the problem.
- Ignition Coil
The ignition coil transfers voltage to the spark plug while running the engine. If this part is defective, your echo chainsaw won’t start. Make sure the spark plug is working well before replacing the ignition coil.
After finding the spark plug in working condition, check the coil using an ignition coil tester.
Solution: Replace the coil if you find it defective.
Echo chainsaw won’t start flooded

If your Echo chainsaw won’t start after flooding, you can follow these steps to troubleshoot the issue and get it running again:
- Check Fuel Mixture:
- Make sure you’re using the correct fuel mixture recommended by the manufacturer (usually a mix of gasoline and 2-stroke oil).
- Ensure the fuel isn’t too old, as stale fuel can lead to starting problems.
- Clear Flooded Engine:
- To clear a flooded engine, set the choke to the “OFF” position and pull the starter cord several times to clear excess fuel from the cylinder.
- Then, move the choke to the “ON” position and try starting again.
- Air Filter Inspection:
- A clogged air filter can hinder starting. Remove the air filter cover, clean or replace the air filter if necessary.
- Spark Plug Examination:
- Check the spark plug for signs of fouling or damage. If needed, clean or replace it.
- Ignition System Check:
- Ensure the ignition switch is in the “ON” position.
- Inspect the spark plug wire and connections for any issues.
- Examine Fuel Lines:
- Check for any clogs or kinks in the fuel lines. Clear any obstructions if found.
- Throttle and Choke Settings:
- Ensure the throttle trigger is properly engaged while starting.
- Manipulate the choke according to the manufacturer’s instructions for cold starts.
- Compression Test:
- If the chainsaw still doesn’t start, perform a compression test to ensure the engine’s internal components are functioning properly.
- Professional Inspection:
- If the problem persists, consider taking the chainsaw to a professional technician for a thorough inspection and repair.
Remember, following the manufacturer’s guidelines and using genuine Echo replacement parts can significantly contribute to the chainsaw’s performance and longevity. If you’re uncertain about any step, refer to the user manual or consult with a professional.
How to start flooded echo chainsaw

Starting a flooded chainsaw can be a bit challenging, but by following the correct steps, you can quickly get your Echo chainsaw up and running. Remember, safety should always be a priority, so ensure you’re in a well-ventilated area and away from any potential hazards before attempting to start the chainsaw.
- Choke Position:
- Move the choke lever to the “OFF” position. This allows more air into the engine and lessens the fuel mixture.
- Throttle Position:
- Hold the throttle trigger fully open. This helps clear out excess fuel from the combustion chamber.
- Spark Plug:
- Remove the spark plug from the engine. This prevents the engine from igniting while you’re working on it.
- Clear Cylinder:
- With the spark plug removed, pull the starter cord several times. This action clears the excess fuel from the cylinder.
- Clean or Replace Spark Plug:
- Examine the spark plug for any fouling or wetness. If it’s wet, dry it off or replace it with a new, properly gapped spark plug.
- Air Out:
- Leave the spark plug hole open for a few minutes to allow any remaining fuel vapor to evaporate.
- Choke and Start:
- After waiting, reinsert the cleaned or new spark plug.
- Move the choke lever to the “ON” position.
- Hold the throttle trigger and pull the starter cord briskly to start the engine.
- Fuel Mixture Check:
- Before attempting to start the chainsaw again, make sure you have the correct fuel mixture in the tank. Using the right blend of gasoline and 2-stroke oil is crucial for optimal engine performance.
- Warm-Up:
- Once the chains are ready, warm them up.
- Avoid Over-Priming:
- Over-priming the engine can lead to flooding. Only prime the engine according to the manufacturer’s recommendations, usually a few pumps of the primer bulb.
- Repeat the Starting Process:
- If the chainsaw still doesn’t start on the first attempt, repeat the starting process outlined above. Remember to maintain the proper choke, throttle, and spark plug positions.
- Patience and Persistence:
- Starting a flooded chainsaw may require a bit of patience. Be persistent and follow the steps diligently, giving the engine time to clear out excess fuel.
- Regular Maintenance:
- To prevent future flooding issues, make sure to perform regular maintenance on your Echo chainsaw. Keep the air filter clean, use fresh fuel, and follow proper starting procedures.
- Seek Professional Help:
- If you’ve followed all the steps and your Echo chainsaw still won’t start, it might be time to consult a professional technician. They can diagnose any underlying issues and provide the necessary repairs.
- Prevention is Key:
- To avoid flooding in the first place, be mindful of the starting process. Avoid excessive priming, and if you suspect flooding, take a break before attempting to start the engine again.
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Echo chainsaw won’t start when hot

If your Echo chainsaw is having trouble starting when it’s hot, there are several potential reasons for this issue. Understanding these causes and following the right steps can help you troubleshoot and resolve the problem effectively. Here’s what you can do:
- Cool Down Time:
- Allow the chainsaw to cool down for a few minutes before attempting to restart it. Hot engines can experience vapor lock or fuel evaporation issues that hinder starting.
- Check Choke Position:
- Ensure the choke lever is in the proper position. For a hot start, the choke should typically be in the “OFF” or fully open position to allow maximum air into the engine.
- Throttle Position:
- Hold the throttle trigger fully open while starting. This helps draw in more air and can aid in starting a hot engine.
- Fuel Mixture Quality:
- Use high-quality fuel with the correct mixture of gasoline and 2-stroke oil. Stale or incorrect fuel can cause starting problems, especially when the engine is hot.
- Prime Sparingly:
- If your chainsaw has a primer bulb, use it sparingly for hot starts. Over-priming can flood the engine and make starting more difficult.
- Air Filter Condition:
- A dirty or clogged air filter can restrict airflow and affect starting. Make sure the air filter is clean and free from debris.
- Examine Spark Plug:
- Check the spark plug for fouling or damage. Clean or replace it if needed, ensuring the spark plug gap is correct.
- Ignition System Check:
- Inspect the spark plug wire and connections for any loose or damaged parts that could affect the ignition.
- Vapor Lock Prevention:
- Vapor lock can occur when fuel evaporates too quickly, causing air bubbles in the fuel lines. Keep the chainsaw away from direct sunlight when not in use and store it in a shaded area.
- Consider Engine Temperature:
- Extremely high temperatures can make starting challenging. If the chainsaw consistently struggles to start when hot, it might be worth seeking assistance from a professional technician.
- Follow Manufacturer’s Recommendations:
- Always refer to the manufacturer’s user manual for specific hot starting instructions and any recommended procedures.
By addressing these potential issues and following the steps outlined above, you can increase the chances of successfully starting your Echo chainsaw even when it’s hot.
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New Echo chainsaw won’t start
Experiencing difficulty starting a new Echo chainsaw can be frustrating, but there are several common reasons for this issue. By systematically troubleshooting and following the right steps, you can often identify and resolve the problem. Here’s a step-by-step guide to help you get your new Echo chainsaw up and running:
- Check Fuel and Oil Levels:
- Make sure the chainsaw has enough fuel in the tank and that you’ve mixed the correct fuel-to-oil ratio as specified in the manufacturer’s manual.
- Ensure the oil reservoir is filled with bar and chain oil.
- Activate Safety Features:
- Confirm that the chain brake is engaged and the throttle trigger lockout is released. These safety features must be properly set for the chainsaw to start.
- Choke Position:
- If your chainsaw has been sitting unused for a while, use the choke to facilitate starting. Move the choke lever to the “ON” position before attempting to start.
- Throttle Position:
- Hold down the throttle trigger fully while attempting to start. This primes the engine with additional air and can aid in starting.
- Check for Spark:
- Remove the spark plug and inspect it for spark. If there’s no spark, the ignition system might be faulty and require professional attention.
- Inspect Air Filter:
- A clogged or dirty air filter can hinder starting. Remove the air filter cover, clean or replace the filter if necessary.
- Prime the Engine:
- If your chainsaw has a primer bulb, press it a few times to prime the engine. Be cautious not to over-prime, as this can flood the engine.
- Pull Cord Firmly:
- Pull the starter cord firmly and smoothly. Avoid yanking it forcefully, as this can lead to further starting issues.
- Warm-Up Period:
- Once the chainsaw starts, let it run at idle for a short while to warm up. This can help stabilize the engine.
- Professional Assistance:
- If the chainsaw still won’t start after following these steps, and especially if it’s a brand new unit, consider reaching out to the retailer or an authorized Echo service center for assistance.
- Review the User Manual:
- Always consult the user manual that came with your Echo chainsaw. It contains valuable information on starting procedures specific to your model.
Video on Why Echo Chainsaw Won’t Start?
Apart from the above reasons, watch the video for better troubleshooting:
FAQs
- Why won’t the new Echo Chainsaw start?
If your brand-new chainsaw won’t start, empty the stale gas from the tank and fill it with fresh mixed gas. Regular gas that is older than one month is known as stale. Apart from no start, stale gas also causes poor running, stalling, lack of power, or bogging down.
- Why do echo chainsaws get fuel but not start?
A clogged carburetor can be the source of this hassle. The carburetor of a chainsaw can clog if the user leaves fuel in the engine for a long time. However, cleaning out the carburetor will help restore its performance.
- Why does the Echo chainsaw start and then stop?
Your Echo chainsaw may also start and stop due to a clogged carburetor. After a long time, the ingredients in the fuel may leave a thicker and stickier core inside the carburetor and clog it up. Hence, the engine may try to start up and stop down.
Final Words
In short, lack of maintenance is the core reason why the Echo chainsaw won’t start. While regular maintenance can let your echo chainsaw perform optimally, repairing at the initial stage can also bring the penalty down.
Replacing the faulty parts is the last resort, and you must find a compatible replacement to fix your echo chainsaw successfully.