How to Store a Motorcycle for Winter: Step-by-Step

I need to put my motorcycle away for the winter. How do I store it so it starts right up in spring instead of fighting a dead battery, gummed carb, and flat-spotted tires?

Good winter storage prevents the three things that ruin a spring start: a dead/sulfated battery, stale-fuel varnish in the fuel system, and moisture/corrosion. Fill and stabilize the fuel, change the oil, keep the battery on a tender, protect against moisture and pests, and get weight off the tires. An hour of prep saves a frustrating (and expensive) spring.

ℹ️ Reference only: For general reference only: AI-assisted and not professional advice. This guide guarantees no result; every situation differs. Verify against the manufacturer, local codes, and a licensed professional before acting, especially for electrical, gas, fuel, plumbing, structural, or roof work. Use at your own risk.

💵 $40-$90 DIY (stabilizer, oil and filter, a battery tender you'll reuse, a cover). Shop winterization runs $100-$250. ⏱ 1-2 hours. ● Use caution

Safety: Run the engine only in a well-ventilated space (never a closed garage) to circulate stabilized fuel. Exhaust contains deadly carbon monoxide. Fuel is flammable; no sparks or flames while fueling/stabilizing. Let the engine cool before covering. Remember to remove any exhaust/intake plugs before starting in spring; running with them in can cause damage. Store the bike on a stable, level surface so it can't tip.

Common causes

Battery self-discharges and sulfates over months unattended, often dying permanently. (the risk you're preventing)
Quick check: Will the bike sit more than a few weeks without riding? Then the battery needs a tender or removal. Left alone it will likely be dead or damaged by spring.
Fuel goes stale and varnishes, gumming carbs/injectors; an empty or partly full steel tank can rust inside from condensation. (the risk you're preventing)
Quick check: Modern ethanol fuel degrades in 1-3 months. Storing without stabilizer (especially carbureted bikes) invites hard starting and carb cleaning in spring.
Moisture corrosion and pests. Damp storage rusts metal; mice nest in airboxes and exhausts and chew wiring. (common)
Quick check: Is the storage spot damp or rodent-prone? Bare metal, a cold concrete floor, and open intake/exhaust are all invitations.

How to fix it

Fuel: fill the tank nearly full and add fuel stabilizer, then ride or run the engine a few minutes so stabilized fuel reaches the carb/injectors. A full tank limits condensation/rust. (Some prefer to drain carbs via the float-bowl screw instead.)
Oil: change the oil and filter before storage so the engine sits on clean oil, not acidic used oil.
Battery: put it on a smart tender/maintainer, or remove it and store it somewhere cool and dry on a maintainer. Don't leave it installed and unattended.
Tires: inflate to the recommended pressure; ideally get weight off them with stands, or at least move the bike periodically to avoid flat spots.
Protect against moisture/pests: store in a dry spot, off a cold floor if possible; plug the exhaust and cover the airbox intake loosely to keep mice out (remember to remove these in spring); a breathable cover beats a plastic tarp that traps moisture.
Wash and dry the bike and apply a light corrosion protectant to bare metal; lube the chain.
Spring: remove exhaust/intake plugs, reinstall/recheck the battery, check tire pressure and fluids, and start it up.

DIY or call a pro?

Fully DIY: winter storage prep needs only basic supplies and an hour. A shop can do a 'winterization' service if you lack space/time or want fogging oil run through the cylinders for very long-term storage. The essentials (stabilized fuel, fresh oil, battery tender, moisture/pest protection) are easy to do yourself and the main thing standing between you and an easy spring start.

Tools & parts

Fuel stabilizer and fresh fuel
Oil, filter, and crush washer (pre-storage oil change)
Smart battery tender/maintainer
Front/rear stands (to unload tires) if available
Breathable bike cover, exhaust/intake plugs, corrosion spray, chain lube

Keep a record of every fix you make: what broke, what it cost, how you solved it.

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Based on: Motorcycle manufacturer owner's-manual long-term storage procedures; Fuel-stabilizer manufacturer (STA-BIL) ethanol-fuel storage guidance; General powersports guidance on battery tenders, tire care, and pest/moisture protection

General guidance only. Follow your model's storage procedure; run engines only in ventilated spaces and consult a mechanic for very long-term storage (e.g., cylinder fogging). Information here is general reference only and may be estimated or AI-assisted. It is not professional advice. Verify with a qualified professional before acting, and use it at your own risk. See our Terms & Disclaimer.