KTM 250 SX-F 2005 Repair Manual page 135

IMPORTANT CHECKS AND MAINTENANCE TO BE CARRIED OUT BY THE RIDER
Check oil level
Check brake fluid level
Check brake pads for wear
Check lights for function
Check horn for function
Lubricate and adjust cables and nipples
Bleed fork legs regularly
Remove and clean fork dust bellows regularly
Clean and lubricate chain, check tension and adjust if necessary
Clean air filter and filter box
Check tires for pressure and wear
Check cooling fluid level
Check fuel lines for leaks
Drain and clean float chamber
Check all control elements for smooth operation
Check brake performance
Treat blank metal parts (with the exception of brake and exhaust system)
with wax-based anti corrosion agent
Treat ignition and steering locks and light switches with contact spray
Check tightness of screws, nuts and hose clamps regularly
IMPORTANT INSPECTIONS OR MAINTENANCE WORK THAT MUST BE PERFORMED BY THE SPECIALIZED KTM WORKSHOP FOR COMPETITIVE
RACING / FOR HOBBY-USE (SEPARATE ORDER FOR SPECIALIZED KTM WORKSHOP)
A 100 liter fuel consumption
is equivalent to approx. 15 operating hours
Check the clutch disks for wear
Check the length of the clutch springs
Check the clutch drive for indentations
Check the outer clutch hub for indentations
Check the cylinder and piston for wear
Check the groove on the piston pin retainer for wear (visual check)
Check the camshaft for wear (visual check)
Check the spring cap for wear
Check the eccentricity of the valve disk
Check the valve guides for wear
Replace the valves
Replace the valve springs
Check the function of the timing chain tensioner
Check the eccentricity of the crankshaft journal
Replace the conrod bearings
Check piston pin bearing
Replace the crankshaft main bearings
Check the entire transmission including the roller and bearings for wear
Check the length of the bypass valve spring
Replace the glass-fiber yarn filling in the silencer
Replace the sealing cup for the foot brake cylinder
Replace the throttle slide, jet needle and main jet holder (every 200 hours)
NOTE: If the inspection establishes that permissible tolerances are exceeded, the respective components must be replaced.
PERIODIC MAINTENANCE SCHEDULE 2007
COMPETITIVE
RACING
HOBBY-USE
Before After
each every
start cleaning
every 10 hours every 20 hours
70 liter 140 liter
every 20 hours every 40 hours
140 liter 270 liter
11-7
For cross- at least
country once
use a year
every 40 hours every 80 hours
270 liter 540 liter
––– every 80 hours
540 liter