A reliable Stihl chainsaw is a valuable tool for any wood-burning stove owner, but when it won’t start, it can be frustrating. This article aims to provide clear and concise troubleshooting steps to help you understand and address the common reasons your Stihl chainsaw won’t start. Whether you’re a seasoned chainsaw user or a beginner, these steps will guide you towards a solution.
Safety First: Before attempting any troubleshooting, ensure your chainsaw is completely cool, and wear the necessary safety gear, including gloves and safety glasses.
Check the Fuel:
The first and most obvious reason your chainsaw may not start is an empty fuel tank. Make sure you have a sufficient amount of the correct fuel mix (usually gasoline and 2-stroke oil) in the tank.
Inspect the Spark Plug:
A fouled or damaged spark plug is a common issue. Remove the spark plug and inspect it. If it’s dirty, clean it, and if it’s damaged, replace it with the manufacturer’s recommended spark plug.
Air Filter Examination:
A clogged or dirty air filter can restrict air flow and prevent starting. Remove the air filter cover, take out the air filter, and clean or replace it if necessary.
Check for Flooded Engine:
If you’ve attempted multiple starts without success, the engine may be flooded. To fix this, remove the spark plug, turn the ignition off, and pull the starter cord several times to clear excess fuel. Reinstall the spark plug and try starting again.
Fuel Filter Inspection:
Examine the fuel filter for clogs or damage. A clogged filter can prevent fuel from reaching the engine. If needed, replace the fuel filter with one designed for your Stihl chainsaw.
Primer Bulb Check:
Ensure that the primer bulb is working correctly. It should fill with fuel when you prime it. If not, check for leaks or blockages in the fuel line.
Choke Position:
Make sure the choke is in the correct position for starting. Follow your chainsaw’s manual to determine the right choke setting for your specific model.
Ignition System Inspection:
If none of the above steps resolve the issue, the problem might be in the ignition system. Check the ignition switch, wires, and the on/off switch to ensure they are functioning correctly. If you find any issues, consult a professional for repairs.
Compression Test:
Low compression can prevent a chainsaw from starting. If you have the necessary tools and expertise, you can perform a compression test. If the compression is too low, it might require professional servicing.
Professional Assistance:
If you’ve followed all the steps and your chainsaw still won’t start, it may be time to seek professional help. A Stihl dealer or authorized repair center can diagnose and fix more complex issues.
Conclusion
A Stihl chainsaw not starting can be due to various reasons, most of which can be resolved with simple troubleshooting. By following the steps outlined in this guide, you can determine the issue and, in many cases, get your chainsaw running smoothly again. Remember to always prioritize safety and consult your Stihl chainsaw manual for model-specific instructions.