Do these four things even if you do nothing else
- Change the oil and filter before storage, not after. Used oil holds combustion acids and moisture that sit against bearing surfaces all winter.
- Fill the tank to the top and add fuel stabiliser. A full tank leaves no air space for condensation; stabiliser slows the gum that blocks pilot jets and injector screens.
- Put the battery on a smart maintainer, not a plain trickle charger. Lead-acid and lithium batteries both sulphate or drift when left to self-discharge for months.
- Inflate tyres to the placard pressure and get the weight off them — paddock stands, or move the bike a few feet every couple of weeks.
The full autumn sequence
Order matters: wash and dry first so nothing corrodes under road salt, then service fluids, then protect and cover. Doing it in the reverse order traps moisture under the cover.
| Step | Why | Time |
|---|---|---|
| Wash, dry fully, then ride 10 minutes | Removes salt and evaporates trapped water | 45 min |
| Oil and filter change | Removes acidic, moisture-laden oil | 30–45 min |
| Fill tank, add stabiliser | Blocks condensation and fuel gum | 10 min |
| Clean and lube the chain | Stops surface rust seizing links | 20 min |
| Battery on a maintainer | Prevents sulphation and deep discharge | 10 min |
| Tyres to pressure, bike on stands | Prevents flat spots and sidewall stress | 15 min |
| Breathable cover, dry space | Plastic sheeting sweats and pits paint | 5 min |
Fuel: carburettor bikes need one extra step
Injected bikes are happy with a full tank and stabiliser. Carburettor bikes have float bowls that hold a small amount of fuel which will varnish over several months, and that varnish is what blocks pilot circuits and causes the classic 'ran fine in October, won't idle in April' complaint.
Either drain the float bowls using their drain screws after adding stabilised fuel and running the engine briefly, or accept that a bowl clean may be part of your spring service.
Battery types behave differently
- Lead-acid and AGM: sulphate permanently when left below roughly 12.4 V. A maintainer is close to mandatory.
- Lithium (LiFePO4): must not be charged by a lead-acid desulphation cycle. Use a maintainer with a lithium mode, or disconnect and store it at partial charge in a warm room.
- Any battery: disconnect the negative lead if the bike has alarms, trackers or a keyless system draining it in storage.
Spring wake-up, in fifteen minutes
- Check tyre pressures cold and inspect for cracking and date codes before the first ride.
- Squeeze both brake levers — pads and discs surface-rust in storage and the first stops will be poor.
- Check chain tension and re-lube; oil migrates off the chain over months.
- Check coolant and oil levels, then start and let it reach temperature before riding.
- Ride gently for the first few miles: cold tyres, rusty discs and stiff suspension all need a warm-up.
Frequently asked questions
- Should I start the bike occasionally during winter?
- No. A short start never reaches temperature, so it adds fuel and moisture to the oil without evaporating anything. Either ride it properly for 20+ minutes or leave it alone on a maintainer.
- Full tank or empty tank for storage?
- Full, with stabiliser. Air space in a part-filled tank collects condensation, and a steel tank will rust from the inside.
- How long can a motorcycle sit before it needs work?
- Four to six weeks is fine with a charged battery. Beyond about three months, expect fuel degradation, tyre flat spots and brake surface rust unless it was prepared for storage.
- Do I need to change the oil again in spring?
- Not if you changed it before storage — that fresh oil is clean. If you stored it on old oil, change it before the first proper ride.
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