Foreword
Before you put your motorcycle away for winter, take time to check its condition—and keep a record of what you find.
A few photos, maintenance notes and saved diagnostic results can make spring preparation easier. If a warning light appears or the bike becomes difficult to start after storage, you will have something concrete to compare against.
Your motorcycle winter storage checklist should cover the battery, fuel, tires, fluids, brakes and drivetrain. Record the storage date, mileage, maintenance completed, outstanding problems and any diagnostic trouble codes.
For motorcycles that support electronic diagnostics, a pre-storage scan can add useful information to that record.
This guide covers seasonal storage for gasoline-powered motorcycles. Follow your motorcycle’s owner’s manual for model-specific procedures, fluid specifications and storage requirements.
1. Record Your Motorcycle’s Condition Before Storage
After several months, it can be difficult to remember when you last changed the oil—or whether that warning light had already appeared before winter.
Start a maintenance record with:
- Motorcycle make, model and model year.
- Current odometer reading.
- Storage date, location and expected return-to-road date.
- Date and mileage of the most recent service.
- Recent starting difficulties, unusual noises, warning lights or rough running.
- Repairs or replacement parts still needed.
Include the units you use, such as miles or kilometers, so the record remains clear.
Take photos of the instrument panel, both sides of the bike, the tires and any existing damage. For intermittent problems, describe when they happen.
“Rough idle after a cold start, improving as the engine warms up” is more useful than “engine problem.”
2. Check the Battery and Note the Test Conditions
Inspect the battery case for damage and the terminals for corrosion or loose connections. Then choose a storage and charging plan appropriate for your battery type.
If you measure voltage, record the conditions alongside the reading:
- Engine off after the battery has rested.
- Ignition switched on.
- Engine running.
Readings taken under different conditions are not directly comparable. A single voltage reading also does not provide a complete assessment of battery health.
If maintenance charging is required, use a charger suitable for the battery’s chemistry. Follow the motorcycle and battery manufacturers’ instructions on charging, disconnection and removal. Yamaha’s winter storage guidance also emphasizes avoiding complete battery discharge. See Yamaha’s winter storage advice.
Record: Battery type, installation date if known, voltage and test conditions, charging date and planned checks during storage.
3. Prepare the Fuel System and Record What You Use
Check your owner’s manual before deciding how much fuel to leave in the tank or whether to use a fuel stabilizer.
Some manufacturers recommend filling the tank and adding stabilizer for extended storage to help limit fuel deterioration and tank corrosion. Follow the instructions for your motorcycle and avoid overfilling. See Yamaha’s model-specific storage instructions.
If you use a stabilizer, follow its dosage and circulation instructions. For carbureted motorcycles, check whether the manual calls for draining the carburetor float bowls.
Record: Refueling date, fuel grade, approximate fuel level, stabilizer product and quantity, and the preparation steps completed.
If starting problems appear in spring, this information will help you or your technician assess the fuel’s storage history.
4. Inspect Tires, Fluids, Brakes and the Drivetrain
Electronic diagnostics are useful, but winter preparation also requires a physical inspection. Harley-Davidson’s storage guidance includes tire care, fluids and cleaning among the key preparation steps. See Harley-Davidson’s winter storage guide.
Tires
Check cold tire pressures against your motorcycle’s specifications. Inspect the tread and sidewalls for damage, cracking, embedded objects and uneven wear.
Record front and rear pressures, the units used—such as psi or bar—and the measurement date.
Engine Oil
Check the oil level using the procedure in your owner’s manual. Look for leaks and review the manufacturer’s storage guidance and service schedule to determine whether an oil and filter change is needed.
Record the oil specification, service date and mileage.
Coolant
For liquid-cooled motorcycles, inspect the coolant level and look for leaks. If the storage area may experience freezing temperatures, confirm that the coolant provides suitable freeze protection.
A correct fluid level alone does not establish adequate freeze protection. See Yamaha’s winter storage advice.
Record the coolant specification, replacement date and inspection results.
Brakes
Check brake fluid levels, visible lines and connections, brake pad condition and lever or pedal feel. Record any leaks, unusual behavior or work that needs to be completed before riding again.
Drivetrain
For chain-driven motorcycles, inspect chain condition and adjustment, then clean and lubricate it as directed. Belt- and shaft-driven motorcycles require their own model-specific checks.
Keep lubricants and corrosion-protection products away from brake friction surfaces and tire tread.
5. Read and Save Fault Codes Before Clearing Them
On a compatible motorcycle, a pre-storage diagnostic scan can help establish a record of the electronic systems’ condition.
Its purpose is straightforward: if a fault code appears in spring, you can check whether it was already present before storage.
Save:
- Scan date and odometer reading.
- Systems successfully accessed.
- Exact fault codes and descriptions.
- Code status, where displayed.
- Relevant live data and the conditions under which it was collected.
- Inspection, repair and follow-up scan results.
Do not clear codes simply to produce a “no faults” result. A fault code is a diagnostic clue. Clearing it does not repair the underlying cause.
Save the information first, investigate it using the appropriate service information, and clear or recheck codes when the repair procedure calls for it.
The FXTUL M7 motorcycle diagnostic tool lists fault-code reading and clearing, live data viewing, data-stream recording and playback, and screenshots of fault codes and data waveforms among its features. These functions can help you retain useful pre-storage information.
Before buying, confirm support for your exact motorcycle, model year, required systems and connection cable. Available functions vary by vehicle and software version; support for a brand does not mean every function is available on every model.
A scan showing no fault codes does not confirm that the tires, brakes, battery or other mechanical components are in good condition.
6. Clean, Dry and Document the Storage Setup
Clean the motorcycle and allow it to dry thoroughly. Wait until the engine and exhaust have cooled before fitting a cover.
Choose a dry, ventilated location where possible. Avoid trapping moisture beneath an unsuitable cover. See Yamaha’s motorcycle storage instructions.
Record where the bike and keys are stored, how the battery will be maintained, and anything that must be restored before the next start.
If you use intake or exhaust protection as directed by the owner’s manual, attach a conspicuous reminder and list it for removal before starting the engine.
Copy-and-Save Motorcycle Winter Storage Checklist
Save this list in your phone or maintenance folder:
- Motorcycle: Make ___ / Model ___ / Model year ___
- Storage: Date ___ / Odometer reading and units ___ / Location ___
- Existing symptoms: Warning lights ___ / Problems and when they occur ___
- Battery: Type ___ / Voltage ___ / Test conditions ___
- Battery care: Charging method ___ / Planned checks ___
- Fuel: Refueling date ___ / Fuel level ___ / Stabilizer and dosage ___
- Tires: Front cold pressure ___ / Rear cold pressure ___ / Units ___
- Fluids: Engine oil ___ / Coolant ___ / Brake fluid ___
- Drivetrain: Inspection results ___ / Cleaning or lubrication date ___
- Diagnostics: Systems scanned ___ / Fault codes ___ / Saved file location ___
- Outstanding work: Repairs needed ___ / Planned action ___
- Before restarting: Covers, plugs or other storage measures to remove or restore ___
Frequently Asked Questions
Do I need a diagnostic scanner to winterize my motorcycle?
A scanner is not required for every motorcycle, and some motorcycles do not support electronic diagnostics. On compatible bikes, particularly those with warning lights or intermittent problems, a scan can provide useful information alongside the physical inspection.
Should I scan the bike if no warning lights are on?
You can include a scan in your maintenance record if the motorcycle supports it. Dashboard warning lights and information stored in control modules do not always tell the same story. Interpret the results using model-specific service information.
Can I use a car OBD2 scanner on my motorcycle?
Do not assume compatibility based on connector shape alone. Confirm the communication protocol, required adapter, vehicle coverage and available system functions before purchasing.
Should I clear motorcycle fault codes before winter storage?
Save the codes and relevant data first. Investigate the cause and complete any necessary repairs, then follow the prescribed clearing and verification procedure. Removing a code from the display does not resolve the fault.
How should I use the record in spring?
Follow your owner’s manual’s return-to-service instructions, then compare the bike’s condition with your saved record. Recheck the battery, tires, fluids and outstanding repairs. Where relevant, repeat the diagnostic scan under comparable conditions.
Choose a Diagnostic Tool That Fits Your Motorcycle
A clear pre-storage record makes it easier to understand what has changed when riding season returns.
If you want to include fault codes and live data in your maintenance routine, explore the FXTUL M7’s diagnostic and recording features.
Before ordering, send FXTUL your motorcycle make, model, model year and the systems you want to check. Confirm the supported functions and required connection cables so you can choose a tool that matches your bike and your maintenance needs.
