With winter 2025 just around the corner, now’s the perfect time to get your snow blower ready for action. Nothing’s worse than waking up to six inches of fresh powder only to discover your machine won’t start. I’ve been there, and trust me—that emergency repair bill hurts more than the cold.
Start with Fresh Fuel
One of the biggest killers of snow blowers is stale fuel. If you’re pulling your machine out of summer storage, that old gas has likely degraded and could be wreaking havoc on your carburetor.
First things first—drain any old fuel completely. Even if you added stabilizer last spring, fuel that’s been sitting for months can cause starting problems and potentially damage your machine. Pour in fresh, high-quality gas, and if you have a two-stroke engine, make sure you’re mixing the correct fuel-to-oil ratio. For precise measurements, I recommend using the fuel ratio calculator at 2Strokes.com to get the perfect mix every time.
Check and Change the Oil
For four-stroke engines, oil changes are non-negotiable. Old, dirty oil can’t properly lubricate your engine, leading to excessive wear and potential failure when you need your snow blower most.
To change the oil:
- Run the engine for a few minutes to warm up the oil
- Shut it off and let it cool slightly
- Place your snow blower on a level surface
- Remove the oil drain plug and drain the old oil into a container
- Replace the plug and refill with fresh oil recommended by your manufacturer
Remember to dispose of used oil properly—most repair shops offer free recycling programs.
Inspect the Spark Plug
A dirty or corroded spark plug is often the culprit behind starting issues. Remove the spark plug and check for:
- Rust or corrosion on the electrodes
- Carbon buildup or black sooty deposits
- Cracks in the porcelain insulator
If you spot any of these issues, replace the spark plug. Even if it looks okay, consider replacing it anyway if it’s been more than a season or two—they’re inexpensive insurance against starting problems.
Examine Belts and Cables
Snow blowers rely on belts and cables to transfer power from the engine to the auger and drive systems. Over time, these can stretch, crack, or wear out.
Remove the belt cover and inspect all belts for signs of wear, fraying, or cracking. If you spot any issues, replace them now—not when you’re knee-deep in snow. While you’re at it, check that all cables move freely and adjust them if necessary. A properly tensioned drive cable prevents that annoying lurching forward when you engage the drive.
Don’t Forget the Auger
The auger is your snow blower’s workhorse, churning through snow and directing it toward the impeller. Check the auger for:
- Bent or damaged blades
- Missing or damaged shear pins
- Proper lubrication at grease fittings
Shear pins are designed to break when the auger hits something solid, protecting your gearbox from damage. Keep spares on hand—they’re cheap insurance against a major repair.
Test Run Before the First Snow
After completing your maintenance, don’t just put the snow blower back in storage. Fire it up and let it run for a few minutes in a well-ventilated area. Test all controls to ensure everything works properly. This gives you time to address any issues before that first big snowfall.
Taking these steps now will save you time, money, and frustration when winter hits in full force. A well-maintained snow blower not only performs better but also lasts longer—meaning more seasons of reliable service clearing your driveway and pathways.
