SERVICE SCHEDULE 35
10.1Important maintenance work to be carried out by an authorized KTM workshop
S10N S20A S40A
Engine Check the gear oil level. ( p. 88) • •
Change the gear oil. x ( p. 88)
• •
Check spark plug and replace if required. x
• • •
Clean the spark plug connectors and check for tightness. x
• •
Check that the screws in the shift lever and the kickstarter are tight. • • •
Check the engine mounting screws for tightness. • • •
Clean the bearing bush in the starter drive, check that it is seated firmly and grease
it. x (250 EXC AUS/XC‑W/XC, all 300 models)
•
Check the starter drive for play. x (250 EXC AUS/XC‑W/XC, all 300 models)
•
Carburetor Check intake flange and carburetor connection boot for cracks and leakage. • •
Check the idle. • •
Check the vent hoses for damage and routing without sharp bends. • •
Attachments Check the cooling system for leakage. • •
Check the antifreeze and coolant level. ( p. 77) • •
Check the exhaust system for leakage and looseness. • •
Check the throttle cables for damage, smooth operation and routing without sharp
bends.
• • •
Check the fluid level of the hydraulic clutch. ( p. 83) • • •
Clean the air filter. x ( p. 82)
• • •
Check the cables for damage and routing without sharp bends. • •
Check that the electrical equipment is functioning properly. • • •
Check the headlight setting. (EXC, EXC SIX DAYS) ( p. 74) • • •
Brakes Check the front brake linings. ( p. 60) • •
Check the rear brake linings. ( p. 64) • •
Check the brake discs. ( p. 58) • •
Check the front brake fluid level. ( p. 59) • • •
Check the rear brake fluid level. ( p. 63) • • •
Check the brake lines for damage and leakage. • •
Check the free travel of the hand brake lever. ( p. 58) • • •
Check the free travel of the foot brake lever. ( p. 62) • • •
Check that the brake system is functioning properly. • • •
Check the screws and guide bolts of the brake system for tightness. • • •
Chassis
Check the shock absorber and fork for leakage and functioning. x
• • •
Clean the dust boots of the fork legs. ( p. 47) • • •
Bleed the fork legs. ( p. 47) • • •
Check the frame and swingarm for damage. • •
Check the swingarm bearing. • •
Check the play of the steering head bearing. ( p. 48) • •
Check all screws to see if they are tight. • •
Wheels Check the spoke tension. ( p. 70) • • •
Check the wheel hubs for damage. • • •
Check the rim run-out. • • •
Check the tire condition. ( p. 69) • • •
Check the tire air pressure. ( p. 70) • • •
Check chain wear. ( p. 55) • • •
Check the chain tension. ( p. 55) • • •
Clean the chain. ( p. 54) • • •
Check the wheel bearing for play. • •
Clean and grease the adjusting screws of the chain adjuster. • • •
S10N: once after 10 operating hours