KTM 450 XC, Owner'S Manual

Page: 66 / 208

SERVICE SCHEDULE
64
Competition use Hobby use J1A J2A
S15A S30A S45A S30A S60A S90A
Check wear of valve guides. • •
Check valves. • •
Check valve springs. • •
Check the radial clearance of the rocker arm rollers. • •
Measure length of timing chain. • •
Check the timing-chain tensioner function. • •
Check crankshaft and crankshaft journal for run-out. • •
Change conrod bearing. • •
Change the crankshaft main bearing. • •
Change the balancer bearing. • •
Check wear of all transmission components including shafts
and bearings.
• •
Check long bypass valve spring. • •
Change glass fiber yarn filling of main silencer. • •
Replace foot brake cylinder seals. • •
Check carburetor components. • •
S15A: Every 15 service hours - corresponds to about 105 liters of fuel / after every race
S30A: Every 30 service hours - corresponds to about 210 liters of fuel
S45A:
Every 45 service hours - corresponds to about 315 liters of fuel
S60A: Every 60 service hours - corresponds to about 420 liters of fuel
S90A: Every 90 service hours - corresponds to about 630 liters of fuel
J1A: annually
J2A: every 2 years