A storm just rolled through, and a massive, stubborn oak branch is now blocking your driveway. You’ve got your Stihl chainsaw in hand, ready to tackle the mess like a pro. But as you stare down at the confusing array of levers, switches, and that heavy starter rope, a cold realization hits: you have no idea how to start this beast. Don’t panic. To get your chainsaw roaring to life immediately, the secret lies in your model’s technology: if you have a smart M-Tronic model, you simply engage the chain brake, set the Master Control Lever straight to the single start position (▲), and pull the cord; if you have a classic manual-choke model, you must set the lever to full choke (\choke), pull until the engine briefly “burps,” quickly click the lever up to the half-throttle position, and pull again to start. Let’s find out exactly which machine you own and walk through these steps in detail so you can clear that path in seconds.
What Is Stihl M-Tronic?
Stihl M-Tronic is a fully electric engine management system that automatically regulates the ignition timing and fuel metering, taking into consideration of external factors, including temperature, altitude and fuel quality. Whether you’re just starting the working day or picking up your STIHL chainsaw after a break, the feature allows you to concentrate fully on your work and enjoy your power tool to the very best of its ability, no matter whether it’s warm or cold. If you’re finding your Stihl difficult to start, we provide a vast selection of Stihl chainsaw replacement parts for you.
Which One Do You Have?
But how do you identify whether you have the power feature? Here is a golden rule to help you determine:
- Check for your Stihl model: If your model number has the letter “M” at the end, such as MS 261 C-M, then yours is a chainsaw with the M-Tronic feature.
- See the Master Control Lever: Non-M-Tronic models feature a dedicated choke symbol (usually represented by the classic choke icon ‘\ choke\choke ’) or a cold-start position ‘’), whereas M-Tronic models only have a single start position (▲) and no manual choke markings.
How to Start Your Stihl Chainsaw with M-Tronic?
The startup procedure for M-Tronic Stihl chainsaws is a little different from that for those without this feature. Stihl recommends following these steps to start an M-Tronic chainsaw:
- Set the chainsaw on the ground with the handle up and remove the chain guard
- Engage the chain brake by pushing the chain brake handle forward
- Press the decompression valve if your chainsaw has one
- Prime the manual fuel pump bulb on chainsaws that have one
- Move the master control lever into the start position
- With the chainsaw on the ground, stabilize it with your left hand on the front-top handle
- Take the starter cord in your right hand and place your right foot on the rear handle
- Pull the starter cord straight up to start the chainsaw
- Tap the throttle trigger to move the Master Control Lever into the operating position
By following these simple steps, your Stihl chainsaw should now be running. Just pick the chainsaw up, hold the chain brake and pull it toward you until the chain is released with a clicking sound. Before starting cutting, check the oil level at half speed and begin if you notice oil there. We recommend wearing heavy-duty work gloves and protective eyewear during each cut.
How to Start Your Stihl Chainsaw without M-Tronic?
The starting procedure for Stihl chainsaws without an M-Tronic design is quite similar, yet with several key differences. Below are the steps:
- Set your chainsaw on the ground and remove the cover
- Engage the chain brake
- Press the decompression valve and prime the fuel pump if your chainsaw has them
- Position the master control lever to start.
- Steady the chainsaw with your hands and feet in the same position as above
- Pull the chainsaw’s starter cord in a straight-up fashion. The engine will briefly engage, then turn back off
- Open the choke by moving the master control lever to the half-throttle position
- Pull the starter cord again to start the chainsaw engine
- Tap the throttle trigger so the Master Control Lever goes into the normal idle position
- Pick up the chainsaw and release the chain brake
Now, your Stihl chainsaw should be running and ready for action. Always check the oil levels before starting. If there’s no oil on the dark surface, turn the chainsaw off and top up the oil. Then, try to start your chainsaw again until it runs normally.
Troubleshooting: What to Do If Your Stihl Won’t Start?
Pulled the cord over ten times and your Stihl chainsaw still won’t start? That can be improper choking, which commonly happens on traditional Stihl chainsaws without the M-Tronic feature. Many Stihl users pull the cord indefinitely on full choke, expecting the engine to just start and run. This is a guaranteed way to flood your engine.
Instead, you must follow the “Two-Stage Pull”: Set the Master Control Lever to full choke (\choke) and pull the cord. Do not expect it to keep running. You are listening for a brief ‘burp’, ‘cough’, or ‘fart’ from the engine. Once you hear that sudden sputtering sound, immediately move the lever up to the half-throttle position before pulling again. If you keep pulling on full choke, you will flood the engine.
How to Clear the Flooded Engine?
If you smell strong raw gasoline and the engine refuses to pop, your engine is likely flooded with fuel. This means there is too much liquid gasoline in the combustion chamber, preventing a spark from igniting. Fortunately, you can clear this without any tools using the “Throttle-and-Pull” method:
- Turn off the choke: Move the Master Control Lever up to the normal Run (I) position
- Engage the chain brake: Always keep safety first
- Pin the throttle wide open: Squeeze and hold the throttle trigger completely down (Wide Open Throttle / WOT). You can use your right hand to squeeze the throttle while stabilizing the rear handle with your foot.
- Pull hard and fast: Pull the starter rope briskly. It may take 15 to 30 pulls, but this forces fresh air into the chamber, clears out the excess fuel, and will eventually cause the engine to sputter back to life.
- Expect smoke: Once it fires up, it will produce a brief puff of heavy exhaust smoke as it burns off the excess fuel. This is completely normal.
Pro Tip for Severe Flooding (Hydrolock): If the starter rope feels completely stiff and locked, do not force it! Use a spark plug wrench (T-wrench) to remove the spark plug. Turn the chainsaw upside down and pull the starter cord 5-10 times to literally dump the excess fuel out of the spark plug hole. Dry the wet spark plug with a clean rag, screw it back in, and try starting again.
Conclusion
Whether you use a smart M-Tronic chainsaw or a traditional one, your Stihl chainsaw can start on one pull if you follow the correct steps. Once your Stihl gets worn over time, you can source a vast selection of quality replacement chainsaw parts at FridayParts to keep your tool performing at its optimal performance. Explore now and enjoy your happy sawing outside.
