2017-2019 KTM 450 EXC-F / 500 EXC-FMaintenance schedule

Enduro - 450/500cc four-stroke

Scheduled against engine operating hours (some columns also keyed to races or to calendar months).

Verified

Every interval on this page was read directly from the OEM chart.

Intervals

Once after 1 operating hour
Every 15 operating hours
Every 30 operating hours/after every race
Every 45 operating hours
Once after 10 operating hours
Once after 20 operating hours
Every 70 operating hours when used for motorsports
Every 135 operating hours
Annually

Full schedule (55 items)

2017-2019 KTM 450 EXC-F / 500 EXC-F scheduled maintenance items and intervals
Item	Action	Interval	Chart
Change the engine oil and oil filter and clean the oil screens	Replace, Clean	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Change the fuel screen	Replace	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Check all hoses (e.g. fuel, cooling, bleeder, drainage, etc.) and sleeves for cracking, leaks, and incorrect routing	Inspect	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Check and charge the battery	Inspect	Every 15 hrs	Required work
Check idle	Inspect	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Check that the electrical system is functioning properly	Inspect	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Check that the radiator fan is functioning properly	Inspect	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Check that the throttle cables are undamaged, routed without sharp bends, and set correctly	Inspect	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Check the antifreeze and coolant level	Inspect	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Check the brake discs	Inspect	Every 15 hrs	Required work
Check the brake fluid level of the front brake	Inspect	Every 15 hrs	Required work
Check the brake lines for damage and leakage	Inspect	Every 15 hrs	Required work
Check the cables for damage and routing without sharp bends	Inspect	Every 15 hrs	Required work
Check the chain tension	Inspect	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Check the chain, rear sprocket, motor sprocket, and chain guide	Inspect	Every 15 hrs	Required work
Check the frame	Inspect	Every 15 hrs	Required work
Check the free travel of the foot brake lever	Inspect	Every 15 hrs	Required work
Check the free travel of the hand brake lever	Inspect	Every 15 hrs	Required work
Check the front brake linings	Inspect	Every 15 hrs	Required work
Check the fuel pressure	Inspect	Every 15 hrs	Required work
Check the headlight setting	Inspect	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Check the heim joint for play	Inspect	Every 15 hrs	Required work
Check the play of the steering head bearing	Inspect	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Check the rear brake fluid level	Inspect	Every 15 hrs	Required work
Check the rear brake linings	Inspect	Every 15 hrs	Required work
Check the rim run-out	Inspect	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Check the screws and nuts for tightness	Inspect	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Check the spoke tension	Inspect	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Check the swingarm	Inspect	Every 15 hrs	Required work
Check the tire air pressure	Inspect	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Check the tire condition	Inspect	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Check the wheel bearing for play	Inspect	Every 15 hrs	Required work
Check the wheel hubs	Inspect	Every 15 hrs	Required work
Check/correct the fluid level of the hydraulic clutch	Inspect	Every 15 hrs	Required work
Clean the air filter and air filter box	Clean	Every 15 hrs	Required work
Final check: Check the vehicle is roadworthy and take a test ride	Inspect	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Grease all moving parts (e.g. side stand, hand lever, chain, ...) and check for smooth operation	Lubricate	Every 15 hrs	Required work
Make the service entry in the KTM Dealer.net and in the Service and Warranty Booklet	Inspect	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Read out the error memory after the test ride using the KTM diagnostics tool	Inspect	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Read out the fault memory using the KTM diagnostics tool	Inspect	Every 15 hrs Also marked: Once after 1 operating hour	Required work
Change glass fiber yarn filling in the main silencer	Replace	Every 30 hrs	Required work
Check the clutch	Inspect	Every 30 hrs	Required work
Check the swingarm bearing for play	Inspect	Every 30 hrs	Required work
Check the valve clearance	Inspect	Every 30 hrs Also marked: Once after 1 operating hour	Required work
Check the inlet membrane	Inspect	Every 45 hrs	Required work
Service the fork	Inspect	Every 45 hrs	Required work
Service the shock absorber	Inspect	Every 45 hrs	Required work
Perform engine service including removing and installing the engine. (Change the spark plug and spark plug connector. Change the piston. Check/measure the cylinder. Check the cylinder head. Change the valves, valve springs, and valve spring seats. Check the camshaft, rocker arm and rocker arm shafts. Change the connecting rod, conrod bearing, and crank pin. Change the shaft seal ring of the water pump. Check the transmission and shift mechanism. Check the oil pressure regulator valve. Change the suction pump. Check the force pump and lubrication system. Check the timing assembly. Change the timing chain. Change all engine bearings. Change the freewheel.)	Replace	Every 65 hrs	Recommended work
Change the fuel filter	Replace	Every 135 hrs	Recommended work
Change the front brake fluid	Replace	Every 12 mo	Recommended work
Change the hydraulic clutch fluid	Replace	Every 12 mo	Recommended work
Change the rear brake fluid	Replace	Every 12 mo	Recommended work
Lubricate the steering head bearing	Lubricate	Every 12 mo	Recommended work
Service the fork	Inspect	One time Also marked: Once after 10 operating hours	Recommended work
Service the shock absorber	Inspect	One time Also marked: Once after 20 operating hours	Recommended work

Every row above is factory schedule, straight from the chart. Intervals are shown in hrs.

Specs

From the 2018 manual's technical data section. Check yours before buying — these change between model years.

Displacement: 449.9 cm3 (450 models); 510.9 cm3 (500 models)
Compression ratio: 11.8:1
Idle speed: 1,800-1,900 rpm
Valve clearance (cold): intake: 0.10-0.15 mm (0.0039-0.0059 in) at 20 C
exhaust: 0.12-0.17 mm (0.0047-0.0067 in) at 20 C
Spark plug: NGK LMAR9AI-10
Plug gap: 1.0 mm (0.039 in)
Engine oil: capacity: 1.2 l (1.3 qt)
spec: SAE 10W/50
Coolant: capacity: 1.2 l (1.3 qt)
Fuel: tank: 8.5 l (2.25 US gal)
spec: Super unleaded RON 95
Tire pressure (cold): off-road front: 1.0 bar (15 psi)
off-road rear: 1.0 bar (15 psi)
road front: 1.5 bar (22 psi)
road rear: 1.5 bar (22 psi)
Drive chain: 5/8 x 1/4"

Legend

one-time — One-time interval - performed once when that hour figure is reached
periodic — Periodic interval - repeated every time that hour/month figure comes round

From the manual

Any further work resulting from the required or recommended work must be ordered and invoiced separately.
Different service intervals may apply in your country depending on local operating conditions.
Work in the service schedule must be carried out by an authorised KTM workshop and recorded, otherwise warranty claims are void.

Source: KTM Owner's Manual 2018 450 EXC-F / 500 EXC-F (Art. no. 3213650en), section 10 Service Schedule · Chart read from the 2018 manual. Intervals change between model years — confirm against yours.

Always confirm intervals, torque specs and part numbers against your own service manual. This site is a shopping aid, not a repair manual.

Open the hour meter tool