KTM 250 SX-F 2023 Owner's Manual page 37

Check the rim run-out.
Check the spoke tension. (
Check the chain, rear sprocket, engine sprocket, and chain guide. (
Check the chain tension. (
Grease all moving parts (e.g., hand lever, chain,...) and check for smooth operation.
Change the spark plug and spark plug connector.
Check the valve clearance.
Change the fuel filter.
Check the clutch.
Clean the air filter and air filter box.
Change the glass fiber yarn filling of the main silencer.
Service the fork.
Perform the shock absorber service.
Check all screws, nuts, and hose clips for a tight fit.
Change the fuel screen. (
Check the fuel pressure.
Check the antifreeze and coolant level. (
Check the coolant level. (
Change the coolant. ( p. 108)
Check the steering head bearing play. (
Lubricate the steering head bearing.
Perform minor engine service including removing and installing the engine. (Change the
piston, check/measure the cylinder. Check the cylinder head. Check the camshafts and
valve train system components. Check the timing assembly. Change the radial shaft seal
rings and water pump gasket. Change the intake flange.)
Perform major engine service, engine is removed. (Change valves, valve springs, valve
spring seats, and valve spring retainer. Change the connecting rod, conrod bearing and
crank pin. Check the transmission and the shift mechanism. Check the oil pressure con-
trol valve. Change the suction pump. Check the force pump and lubrication system.
Change the timing chain. Change all engine bearings and all gaskets. Change the free-
wheel.)
Final check: check vehicle for operating safety.
Take a test ride.
Read out the error memory after the test ride using the KTM diagnostics tool.
Make a service entry in KTM Dealer.net.
○
One-time interval
●
Periodic interval
p. 98)
p. 72)
( p. 65)
p. 115)
p. 105)
p. 106)
p. 55)
( p. 57)
Every 90 operating hours
Every 45 operating hours
Every 15 operating hours
After 1 operating hour
p. 74)
( p. 68)
SERVICE SCHEDULE 9
every 24 months
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