As the weather changes, it’s time to start thinking about winterizing your concrete cut-off saws. Proper winterization ensures your equipment remains in peak condition, ready to tackle the toughest cuts next construction season. Follow these three fuel-related strategies to protect your saw during the cold months.

Basic Saw Storage During Winter

If you plan to use your saw weekly, store it in a warm area and use non-oxygenated fuel to prevent phase separation. Even short-term storage can lead to temperature-related condensation, causing water buildup in the tank. Always fuel your saw with ethanol-free options, such as non-oxygenated fuel or STIHL MotoMix®, to minimize moisture-related issues.

Short-Term Saw Storage During Winter

If you anticipate using your saw only occasionally throughout the winter, it’s best to use STIHL MotoMix® as your primary fuel. This premixed, high-octane fuel offers an extended shelf life, outperforming ethanol-based alternatives.

Ethanol-based fuels attract up to 50% more water than pure fuel due to ethanol’s alcohol content, which increases the risk of phase separation.

This occurs when water and fuel separate into distinct layers, potentially corroding the tank’s interior. When the engine starts, it may draw in the water layer first, leading to internal damage. Below is an example of phase separation.

MotoMix® eliminates this risk by using high-quality motor fuel and premium oil. If your saw will be idle for more than two weeks, avoid using ethanol-blended fuels altogether.

Long-Term Saw Storage During Winter

For extended storage, it’s crucial to completely run the fuel out of your saw to prevent carburetor issues and ensure a smoother startup in the spring. STIHL recommends running MotoMix® through the saw after draining the previous fuel. Let the MotoMix® run until the tank is empty to clear out any residual fuel.To learn more about the benefits of Stihl MotoMix® click here

Gas-Powered Cut-Off Saw Winterization Checklist

Use this Gas Cut-Off Saw Winterization Checklist before storing your saw to ensure it’s ready for a trouble-free start in the spring:

___ Clean your saw thoroughly. Remove all dust and debris, then wipe it clean.

___ Inspect the blade guard. Look for cracks or wear and replace if necessary.

___Check the recoil rope. Replace if frayed or torn.

___ Ensure the rewind mechanism functions properly. Clean and lubricate with a lightweight spray such as ZEP 45.

___ Remove and inspect the drive belt. Replace if cracked or frayed.

___ Examine the fuel filter inside the gas tank. Replace if dirty or discolored.

___ Inspect the spark arrester. Clean or replace if necessary.

___ Tighten all nuts and bolts. Ensure they are secure and torqued to the proper specifications. Refer to your owner's manual if needed.

___ Check the decompression valve. Ensure it moves freely; replace if worn or non-functional.

___ Remove the spark plug. If blackened or coated with buildup, check the gap and replace it if necessary.

___ Inspect all plastic components. Replace broken or missing pieces, as cosmetic issues can impact performance.

___ Check the primer bulb. Replace if cracked or malfunctioning.

___ Drain any remaining fuel. Dispose of it properly in an approved container.

___ Run the saw outdoors. This clears any remaining fuel from the carburetor and fuel lines.

___ Let the saw run until it shuts off. Once it dies, it’s ready for storage.

___ Properly dispose of leftover fuel. Clean out gas cans in preparation for the next season.

___ Start spring with fresh, high-quality fuel. Use non-oxygenated gas (89 octane or higher) with no ethanol if possible. Mix it properly with synthetic oil for optimal performance.

Rely on Expert Service

For professional maintenance, utilize your local service centers! Our Gold-Certified Expert Mechanics are ready to ensure your saw is properly serviced and prepared for a productive construction season.

By following these fuel strategies and maintenance steps, you can extend the life of your equipment and ensure optimal performance when the next construction season begins.

Prepare your saw for peak performance—schedule a professional service with our Gold-Certified Expert Mechanics today and ensure your equipment is ready for the next construction season!