If you’re already excited about riding the snow next winter, it’s important to step back and learn how to store your snowmobile properly in the meantime. You’ve likely invested a lot into your snowmobile, and you don’t want to wind up paying extra for issues caused by improper storage, be they rust, corrosion or engine degradation. That’s why we’ve compiled a few tips to help you keep your snowmobile in top shape during the offseason.
1. Clean your snowmobile thoroughly
Before putting your snowmobile away, remove built-up dirt, mud and salt that can cause corrosion. You can use mild soap and warm water to clean the seat, hood and panels. Afterward, spray a degreaser under the hood and near the oil reservoir, then rinse thoroughly. Finally, dry all components completely to prevent rust formation. For added protection, consider applying a finishing wax or silicone-based product to maintain the sled’s exterior.
2. Change the oil
The issue with used oil is that it contains contaminants that can lead to internal corrosion. So, drain the old oil and replace it with high-quality synthetic oil. Also, install a new oil filter to ensure a fresh start for the next season. This step helps prevent engine wear and ensures smooth operation come winter.
3. Fog the engine
To protect internal engine components from moisture and corrosion, coat them with fogging oil. If your sled has an automatic fogging system, follow the manufacturer’s instructions. Otherwise, remove the spark plugs, spray fogging oil into each cylinder, and turn the engine over by hand to distribute the oil evenly. This protective barrier prevents rust and keeps engine parts lubricated during storage.
4. Treat and stabilize the fuel
Don’t drain the gas tank and leave it empty, as this can dry out the seals. But don’t leave the fuel untreated either, since it will evaporate and corrode the carburetor along with other parts of the engine. Instead, fill the tank halfway and add a fuel stabilizer, which will reduce the solvent’s evaporation. Make sure you use the right amount of stabilizer by consulting the manufacturer’s instructions. Then, run the engine for a few minutes to make sure the treated fuel circulates throughout the snowmobile, and drain any extra gas from the tank.
5. Check and change the chaincase oil
Check the owner’s manual to see the service interval and change the chaincase oil if it’s past due. You should also inspect the chaincase oil for metal particles or a milky appearance, which indicates water contamination. Change the oil using a formula specifically designed for snowmobiles so that your vehicle is properly lubricated and its drivetrain components keep their longevity.
6. Lubricate moving parts and chassis
Lubrication prevents rust and ensures smooth operation when your sled is back in action. So, grease all suspension and drivetrain components, including the fittings, to push out dirt and moisture. Additionally, apply a light coating of lubricant (such as WD-40) to exposed metal parts like the frame and suspension to prevent rust. Be careful not to spray belts or rubber components.
7. Maintain the battery
Leaving the battery in the snowmobile during the offseason can cause it to drain completely and thus shorten its lifespan. To keep it in good condition:
- Remove the battery and store it in a cool, dry place off the ground.
- Use a trickle charger or battery maintainer to keep it charged throughout the summer.
8. Elevate the snowmobile
Keep your snowmobile off the ground to prevent moisture from damaging the rubber track and other components. Use a jack stand or a snowmobile dolly to lift the track and skis. These options will relieve tension on the rear suspension and prevent flat spots from developing over long storage periods.
9. Inspect the brake system
Check the brake pads, hoses, and fluid levels for any signs of wear or leaks. If you notice cracks, thinning pads or low fluid levels, replace the components before winter arrives. Proper brake maintenance ensures safe and reliable operation when it’s time to ride again.
10. Protect plastics and vinyl
If you’re going to store your snowmobile outside, you can prolong the life of your sled’s plastics and vinyl components by applying a silicone spray to the hood, dash, seat and other plastic parts. That’s how you prevent drying, cracking and fading due to UV exposure.
11. Prevent rodent and pest damage
If you’re planning on storing your sled in a shed or a garage, you should know that rodents love nesting in stored snowmobiles, often chewing on wiring and insulation. To deter pests:
- Plug the exhaust and air intake openings with steel wool to keep mice and small critters out.
- Place mothballs or dryer sheets around the sled and inside storage compartments to discourage nesting.
- Store your sled in a rodent-free environment whenever possible.
12. Choose a proper storage location
To protect your snowmobile from the elements, you need to find the most appropriate storage space:
- Indoor Storage: Ideally, store your sled in a dry, climate-controlled garage or shed.
- Outdoor Storage: If indoor space is unavailable, use a high-quality, breathable cover. Elevate the sled on pallets or a stand to keep it off the ground. Consider adding a tarp over the cover for extra protection, but leave space for proper ventilation to prevent moisture or mildew buildup.
- Self Storage Option: If space is limited, renting a climate-controlled storage unit is an excellent alternative for year-round protection. In terms of size, a 10’x30’ storage unit will likely be enough, but you can use our storage unit size calculator to make sure!
13. Cover your snowmobile
A well-fitted, breathable cover protects against dust, debris and moisture. Even if stored indoors, a cover prevents dust buildup and deters pests. Avoid nonbreathable plastic covers that can trap moisture and lead to mold or mildew.
Failing to store your snowmobile correctly can result in unnecessary repairs and maintenance issues. Follow these steps, and you’ll extend the lifespan of your machine, prevent costly damages and ensure a hassle-free start to the next winter season. And while you’re at it, you can consult our outdoor gear storage guide, too!
