KTM 350 SX-F 2021 Maintenance Schedule
The 2021 KTM 350 SX-F maintenance schedule below covers the manufacturer's recommended service intervals for general maintenance, battery, brake fluid, valve clearance, oil, coolant, tires, drive chain maintenance and air filter. Intervals are shown in kilometres by default and can be switched to miles.
349ccEngine size
51Maintenance items
Official manufacturer manual
Sourced from KTM Owner's Manual (350 SX-F/350 XC-F, Art. 3213474en) (this document covers model years 2016–2022): azwecdnepstoragewebsiteuploads.azureedge.net
Full schedule
| Task | Interval | Difficulty | Notes |
|---|---|---|---|
| Read out the fault memory using the KTM diagnostics tool | Every 10 operating hours | Easy | Read out the fault memory using the KTM diagnostics tool |
| Check and charge the battery | Every 10 operating hours | Easy | Check and charge the battery |
| Check the front brake linings | Every 10 operating hours | Easy | Check the front brake linings |
| Check the rear brake linings | Every 10 operating hours | Easy | Check the rear brake linings |
| Check the brake discs | Every 10 operating hours | Easy | Check the brake discs |
| Check the brake lines for damage and leakage | Every 10 operating hours | Easy | Check the brake lines for damage and leakage |
| Check the rear brake fluid level | Every 10 operating hours | Moderate | Check the rear brake fluid level |
| Check the free travel of the foot brake lever | Every 10 operating hours | Easy | Check the free travel of the foot brake lever |
| Check/correct the fluid level of the hydraulic clutch | Every 10 operating hours | Easy | Check/correct the fluid level of the hydraulic clutch |
| Check the brake fluid level of the front brake | Every 10 operating hours | Moderate | Check the brake fluid level of the front brake |
| Check the free travel of the hand brake lever | Every 10 operating hours | Easy | Check the free travel of the hand brake lever |
| Check the steering head bearing play | Every 10 operating hours | Advanced | Check the steering head bearing play |
| Check the valve clearance | Every 30 operating hours | Advanced | Check the valve clearance |
| Check the clutch | Every 20 operating hours | Easy | Check the clutch |
| Change the cover seal and shaft seal rings of the water pump | Every 30 operating hours | Advanced | Change the cover seal and shaft seal rings of the water pump |
| Change the engine oil and oil filter, clean the oil screen | Every 10 operating hours | Easy | Change the engine oil and oil filter, clean the oil screen |
| Check all hoses (e.g. fuel, coolant, bleeder, drainage, etc.) and sleeves for cracking, leaks, and incorrect routing | Every 10 operating hours | Easy | Check all hoses (e.g. fuel, coolant, bleeder, drainage, etc.) and sleeves for cracking, leaks, and incorrect routing |
| Check the antifreeze and coolant level | Every 10 operating hours | Easy | Check the antifreeze and coolant level |
| Check the frame and swingarm | Every 10 operating hours | Easy | Check the frame and swingarm |
| Check the swingarm bearing for play | Every 20 operating hours | Moderate | Check the swingarm bearing for play |
| Check the heim joints at the top of the shock absorber | Every 10 operating hours | Advanced | Check the heim joints at the top of the shock absorber |
| Check the shock absorber linkage | Every 10 operating hours | Advanced | Check the shock absorber linkage |
| Check the tire condition | Every 10 operating hours | Easy | Check the tire condition |
| Check the wheel bearing for play | Every 10 operating hours | Advanced | Check the wheel bearing for play |
| Check the wheel hubs | Every 10 operating hours | Easy | Check the wheel hubs |
| Check the chain, rear sprocket, engine sprocket, and chain guide | Every 10 operating hours | Easy | Check the chain, rear sprocket, engine sprocket, and chain guide |
| Check the chain tension | Every 10 operating hours | Easy | Check the chain tension |
| Grease all moving parts (e.g., hand lever, chain, ...) and check for smooth operation | Every 10 operating hours | Easy | Grease all moving parts (e.g., hand lever, chain, ...) and check for smooth operation |
| Check the cables for damage and routing without sharp bends | Every 10 operating hours | Easy | Check the cables for damage and routing without sharp bends |
| Clean the air filter and air filter box | Every 10 operating hours | Easy | Clean the air filter and air filter box |
| Change the glass fiber yarn filling of the main silencer | Every 20 operating hours | Easy | Change the glass fiber yarn filling of the main silencer |
| Change the fuel screen | Every 10 operating hours | Easy | Change the fuel screen |
| Check the fuel pressure | Every 10 operating hours | Easy | Check the fuel pressure |
| Change the front brake fluid | Every 12 months | Moderate | Change the front brake fluid |
| Change the rear brake fluid | Every 12 months | Moderate | Change the rear brake fluid |
| Perform minor engine service including removing and installing engine (change spark plug and spark plug connector, piston, check/measure cylinder, check cylinder head, check camshaft and cam lever, check timing assembly, change intake flange) | Every 50 operating hours | Advanced | Perform minor engine service including removing and installing engine (change spark plug and spark plug connector, piston, check/measure cylinder, check cylinder head, check camshaft and cam lever, check timing assembly, change intake flange) |
| Check the tire air pressure | Every 10 operating hours | Easy | Check the tire air pressure |
| Check the rim run-out | Every 10 operating hours | Easy | Check the rim run-out |
| Check the spoke tension | Every 10 operating hours | Easy | Check the spoke tension |
| Check that the throttle cables are undamaged, routed without sharp bends, and set correctly | Every 10 operating hours | Easy | Check that the throttle cables are undamaged, routed without sharp bends, and set correctly |
| Check the screws and nuts for tightness | Every 10 operating hours | Easy | Check the screws and nuts for tightness |
| Check idle | Every 10 operating hours | Easy | Check idle |
| Final check: check the vehicle for safe operation and take a test ride | Every 10 operating hours | Easy | Final check: check the vehicle for safe operation and take a test ride |
| Read out the fault memory using the KTM diagnostics tool after a test ride | Every 10 operating hours | Easy | Read out the fault memory using the KTM diagnostics tool after a test ride |
| Make the service entry in the KTM Dealer.net and in the Service and Warranty Booklet | Every 10 operating hours | Easy | Make the service entry in the KTM Dealer.net and in the Service and Warranty Booklet |
| Service the fork | Every 40 operating hours | Advanced | Service the fork |
| Service the shock absorber | Every 40 operating hours | Advanced | Service the shock absorber |
| Change the hydraulic clutch fluid | Every 12 months | Moderate | Change the hydraulic clutch fluid |
| Grease the steering head bearing | Every 12 months | Easy | Grease the steering head bearing |
| Change the fuel filter | Every 100 operating hours | Easy | Change the fuel filter |
| Perform major engine service including removing and installing engine (change valves, valve springs, valve spring seats and valve spring retainers, connecting rod, conrod bearing, and crank pin; check transmission and shift mechanism; check oil pressure regulator valve; change suction pump; check force pump and lubrication system; change timing chain; change all engine bearings; change freewheel) | Every 100 operating hours | Expert | Perform major engine service including removing and installing engine (change valves, valve springs, valve spring seats and valve spring retainers, connecting rod, conrod bearing, and crank pin; check transmission and shift mechanism; check oil pressure regulator valve; change suction pump; check force pump and lubrication system; change timing chain; change all engine bearings; change freewheel) |
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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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