KTM 450 SX-F 2017 User Manual

9 SERVICE SCHEDULE 28
○ One-time interval
● Periodic interval
9.3 Recommended work
Annually
Every 100 operating hours
Every 50 operating hours
Every 40 operating hours
Once after 20 operating hours
Once after 10 operating hours
Change the front brake fluid. ●
Change the rear brake fluid. ●
Change the hydraulic clutch fluid. ( p. 65) ●
Grease the steering head bearing. ( p. 46) ●
Service the fork. ○ ●
Service the shock absorber. ○ ●
Change the fuel filter. ●
Perform minor engine service, engine has been installed. (Change spark plug and spark plug con-
nector. Change piston, check and measure cylinder; check cylinder head. Check the camshaft,
rocker arm and rocker arm shafts. Check timing assembly.)
● ●
Perform major engine service including removing and installing engine. (Change valves, valve
springs, valve spring seats and valve spring retainers. Change the connecting rod, conrod bearing,
and crank pin. Check the transmission and shift mechanism. Check the oil pressure regulator valve.
Change the suction pump. Check the force pump and lubrication system. Change timing chain.
Change all engine bearings. Change the shaft seal rings and bearing seals of the main bearing.)
●
○ One-time interval
● Periodic interval

KTM 450 SX-F 2017 Specifications

General

Displacement	449.9 cc
Bore x Stroke	95 mm x 63.4 mm
Starter	Electric starter
Transmission	5-speed
Ground Clearance	370 mm
Seat Height	960 mm
Compression Ratio	12.75:1
Fuel System	Keihin EFI, throttle body 44 mm
Ignition	Keihin EMS
Engine Type	Single cylinder, 4-stroke
Frame	Central double-cradle type 25CrMo4 steel
Front Brake	Disc brake, Ø 260 mm
Rear Brake	Disc brake, Ø 220 mm
Fuel Capacity	7 liters
Wheelbase	1, 485 mm
Front Suspension	WP USD, Ø 48 mm