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Ski-Doo's Post-Season Maintenance Checklist

Apr. 15 2026 Snowmobiles By Official Ski-Doo

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What should you do to prepare your snowmobile for storage?

Here’s what you’ll need for the process:

  • Storage oil (fogging oil)
  • High-quality fuel stabilizer
  • Chaincase oil and appropriate lubricants
  • Battery maintainer
  • Breathable snowmobile cover
  • Cleaning supplies (e.g., mild detergent, microfiber cloths)

    Learn more about essential tools and view your Ski-Doo owner's manual.


Step 1: Thorough Cleaning and Inspection

  • WASHING YOUR SNOWMOBILE

Start by washing your sled thoroughly. Pay attention to hard-to-reach areas like the undercarriage where grime accumulates. Removing dirt, mud, or salt will prevent corrosion over time. For best results, use a mild detergent and a soft brush. When finished, ensure the snowmobile is completely dry to prevent moisture-related damage.

  • INSPECTING FOR WEAR OR DAMAGE

Conduct a detailed inspection of your snowmobile. Look for cracking, leaks, or loose parts, especially in critical areas like the suspension or engine mountings. Repair or replace damaged components now to avoid surprises next winter.


Pro Tip: Take note of parts that may require early service during pre-season checks.


Step 2: Fuel System Preparation

Fuel can degrade and clog your system during long periods of inactivity. You have two main options for managing fuel during storage:

  • OPTION 1: ADD A FUEL STABILIZER

If leaving fuel in the tank, add a fuel stabilizer to prevent sediment buildup and preserve fuel quality. Run the engine for a few minutes after adding the stabilizer to ensure it circulates through the fuel lines.

  • OPTION 2: DRAIN THE FUEL

For storage longer than a few months, draining the fuel system is a more reliable solution. Make sure to remove all residue from the tank and fuel system components. On carbureted models, drain the carburetor bowls; on fuel-injected models, refer to the owner’s manual for detailed instructions.


Which is better? Use stabilizers for convenience during shorter storage periods, and drain the fuel for prolonged off-seasons.


Step 3: Engine and Lubrication Maintenance

  • CHANGE ENGINE OIL & FILTER

For 4-stroke engines, replace the oil and oil filter before storage. This protects the engine from harmful contaminants that could cause damage over time.
If you’re performing the oil change yourself, you might want to check out our Video Tutorial.

  • USE FOGGING OIL

One critical part of understanding how to summerize a snowmobile is applying fogging oil. Remove the spark plugs and spray fogging oil into each cylinder for a few seconds. Rotate the engine by hand to distribute the oil evenly across internal components, preventing rust and corrosion.

  • GREASE COMPONENTS & REPLACE CHAINCASE OIL

Lubricate:

  • Suspension Fittings (e.g., A-arms, shocks)
  • Steering Linkages
  • Axle Bearings

Drain and replace the chaincase oil as outlined in your Ski-Doo’s maintenance schedule. Always use recommended lubricants for best results. Additionally, spray any exposed metal components with a corrosion inhibitor for added protection.


Step 4: Battery Maintenance

  • DISCONNECT & CLEAN THE BATTERY

Disconnect the negative terminal first, then the positive. Wipe the terminals clean with a wire brush to prevent corrosion. Store the battery in a cool, dry place away from moisture or extreme heat.

  • USE A BATTERY MAINTAINER

Connect the battery to a trickle charger or maintainer to keep it optimally charged throughout the summer. Neglected batteries lose capacity and develop sulfation, reducing their lifespan.

Pro Tip: Label the storage date to keep track of battery health over time.


Step 5: Track and Suspension Care

  • LOOSEN TRACK TENSION

Reduce the tension on the track to prevent unnecessary stress on suspension components and to avoid stretching.

  • ELEVATE THE SLED

Lift the snowmobile’s rear and place it on a stand so the track is off the ground. This alleviates pressure on both the suspension and the track, keeping them in better condition.

  • LUBRICATE SUSPENSION PARTS

Grease all pivot points and shocks to ensure they remain rust-free and function smoothly next season.


Step 6: Choose the Right Storage Location

Indoor Snowmobile Storage Benefits

Position your snowmobile in a dry, well-ventilated indoor space like a garage or shed. A snowmobile storage shed is particularly beneficial for offering optimal protection against corrosion, UV damage, and humidity.


How to Store a Snowmobile Outside?

If you must store your sled outdoors, here’s how to store a snowmobile outside properly:

  • Elevate the Machine: Place the snowmobile on blocks or wooden platforms to keep it off the ground, preventing moisture accumulation underneath and reducing wear on the sled’s suspension.
  • Use Pest Protection: Rodents can damage wiring and upholstery. Use peppermint oil, mothballs, or rodent deterrent pouches near the sled to keep pests away. Seal openings like the exhaust and intake to avoid unwanted visitors.
  • Invest in a Quality Cover: A breathable, high-quality snowmobile cover is essential for outdoor storage. It protects against the elements without trapping harmful moisture.
  • Choose the Best Location: Store your snowmobile in a shaded, well-drained area to minimize exposure to UV rays and moisture.

    Taking these precautions ensures your sled remains in great condition, even if indoor storage isn’t an option.


Quick Snowmobile Storage Checklist

Here’s a summary of the steps:

  • Wash and inspect your snowmobile.
  • Stabilize or drain fuel to safeguard the fuel system.
  • Change the oil and apply fogging oil.
  • Lubricate components including suspension and steering.
  • Remove and store the battery with a maintainer.
  • Loosen track tension and elevate the rear of the sled.
  • Choose a dry storage location and use a breathable cover.

    Following these steps ensures your snowmobile remains in peak condition during its summer hibernation. For a more detailed, printable guide, download our comprehensive Snowmobile Summer Storage Checklist which breaks down each task into manageable steps, ensuring you don't miss a thing. 


Common Mistakes to Avoid

  • Skipping Cleaning: Dirt accelerates rust and wear.
  • Neglecting the Battery: This can lead to complete battery failure.
  • Leaving Fuel Untreated: Old fuel can clog and damage engines.
  • Ignoring Rodent Prevention: Rodents can gnaw wires and upholstery.
  • Failing to Lubricate Components: Dry suspension parts may seize or corrode.

Avoid these errors for smooth rides next season.


Optimize Your Winter Adventures

Once you’ve stored your Ski-Doo, don’t forget to plan for the upcoming season.
• Test the battery
• Check fluid levels
• Lubricate parts
• Inspect the entire machine before heading to the trails.
Proper care now ensures that your snowmobile will be ready for peak performance when you hit the snow.