Ducati ST4 2003 Maintenance Schedule
The 2003 Ducati ST4 maintenance schedule below covers the manufacturer's recommended service intervals for drive chain maintenance, general maintenance, coolant, battery, oil, valve clearance, spark plugs, brake fluid, tires and air filter. Intervals are shown in kilometres by default and can be switched to miles.
916ccEngine size
38Maintenance items
Unverified · third-party data
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Sourced from maintenanceschedule.com (Owners Manual) (this document covers model years 1999–2003): maintenanceschedule.com
Full schedule
| Task | Interval | Difficulty | Notes |
|---|---|---|---|
| Chain tension, alignment and lubrication check (service) | Every 10,000 km · Every 12 months | Easy | Check drive chain tension, alignment and lubrication. |
| Bowden cable routing check | Every 10,000 km · Every 12 months | Easy | Check bowden (throttle/choke) cables for proper routing. |
| Coolant level check | Every 10,000 km · Every 12 months | Easy | Check coolant level. |
| Battery fluid level check | Every 10,000 km · Every 12 months | Easy | Check battery fluid level (early ST4 used a wet/serviceable battery). |
| Throttle lubrication check | Every 10,000 km · Every 12 months | Easy | Check and lubricate throttle. |
| Electric fan operation check | Every 10,000 km · Every 12 months | Easy | Check electric cooling fan operation with engine running. |
| Cooling circuit leak check | Every 10,000 km · Every 12 months | Easy | Check cooling circuit for leaks. |
| Steering bearing play check | Every 10,000 km · Every 12 months | Advanced | Check steering bearing play. |
| Wheel hub bearing check | Every 10,000 km · Every 12 months | Moderate | Check wheel hub bearings. |
| Rear wheel cush drive rubber check | Every 10,000 km · Every 12 months | Moderate | Check rear wheel cush drive rubber; replace if necessary. |
| Fuel tank interior cleaning | Every 10,000 km · Every 12 months | Moderate | Clean interior of fuel tank. |
| Nuts and bolts tightness check | Every 10,000 km · Every 12 months | Moderate | Check tightness of nuts and bolts; tighten as necessary. |
| Side stand movement and lubrication check | Every 10,000 km · Every 12 months | Easy | Check side stand for free movement and lubrication. |
| Front fork and rear shock absorber leak check | Every 10,000 km · Every 12 months | Easy | Check front fork and rear shock absorber for leaks and smooth operation. |
| Front sprocket holder plate check | Every 10,000 km · Every 12 months | Moderate | Check front sprocket holder plate. |
| Road test | Every 10,000 km · Every 12 months | Easy | Road test the motorcycle. |
| Indicator and lighting system check | Every 10,000 km · Every 12 months | Easy | Check turn indicators and lighting system. |
| Motorcycle cleaning | Every 10,000 km · Every 12 months | Easy | Clean the motorcycle. |
| Engine oil change | Every 10,000 km · Every 12 months | Easy | Change engine oil. |
| Engine oil filter change | Every 10,000 km · Every 12 months | Easy | Change engine oil filter. |
| Engine oil filter intake mesh cleaning | Every 20,000 km | Moderate | Clean the engine oil filter screen at the intake. |
| Engine oil pressure check | Every 20,000 km | Moderate | Check engine oil pressure. |
| Valve clearance check/adjustment | Every 10,000 km · Every 12 months | Advanced | Check and adjust desmodromic valve clearances (4-valve Desmoquattro engine). |
| Cylinder head tightness check | Every 10,000 km · Every 12 months | Moderate | Check tightness of engine cylinder heads; tighten as necessary. |
| Timing belt tension check | Every 20,000 km | Moderate | Check timing belt tension. |
| Timing belt replacement | Every 20,000 km · Every 24 months · Replace every 20,000 km · Replace every 24 months | Moderate | Replace engine timing belts. |
| Spark plug check/clean/gap | Every 10,000 km · Every 12 months | Easy | Check, clean, and gap spark plugs (Champion RA 59 GC, gap 0.6-0.7mm, torque 20Nm); replace if necessary. |
| Brake and clutch fluid level check | Every 10,000 km · Every 12 months | Easy | Check brake and clutch fluid reservoir levels. |
| Brake and clutch hydraulic control adjustment check | Every 10,000 km · Every 12 months | Easy | Check and adjust brake and clutch hydraulic controls. |
| Tyre pressure and wear check | Every 10,000 km · Every 12 months | Easy | Check tyre pressure and tread wear. |
| Brake pad wear check | Every 10,000 km · Every 12 months | Easy | Check brake pad wear; replace if necessary. |
| Air filter check/clean | Every 10,000 km · Every 12 months | Easy | Check and clean air filter; change as necessary. |
| Throttle body sync and idle speed check | Every 10,000 km · Every 12 months | Moderate | Check and adjust throttle body synchronisation and idle speed. |
| Brake and clutch fluid change | Every 20,000 km · Every 24 months | Moderate | Change brake and clutch fluid (Castrol DOT 4). |
| Coolant change | Every 20,000 km · Every 24 months | Moderate | Drain and replace engine coolant. |
| Front fork fluid change | Every 20,000 km · Every 24 months | Advanced | Change front fork oil/fluid. |
| Chain condition and lubrication check (rider) | Every 1,000 km | Easy | Rider-performed check of chain condition and lubrication. |
| Chain tension and alignment check/adjustment | Every 10,000 km | Easy | Check chain tension and alignment, adjusting if necessary. Slack spec: approx. 32mm. |
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Easy: basic tools, straightforward Easy–Moderate: varies by task — somewhere between the two Moderate: some mechanical know-how helps Advanced: specialized tools/skill, still DIY-doable Expert: significant experience required Professional: dealer or shop recommended
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