KTM 125 SX 2019 User Manual

13 WHEELS, TIRES
92
H03001-10
Main work
– Check the wheel bearing for damage and wear.
» If the wheel bearing is damaged or worn:
– Change the rear wheel bearing.
–
Clean and grease shaft seal rings
1
and contact surface
A
of the spacers.
Long-life grease ( p. 131)
– Insert the spacers.
– Clean and grease the wheel spindle.
Long-life grease ( p. 131)
H00006-10
–
Position the rear wheel and insert wheel spindle
2
.
The brake linings are correctly positioned.
– Mount the chain.
H00007-10
–
Position chain adjuster
3
. Mount nut
4
, but do not tighten
it yet.
–
Make sure that chain adjusters
3
are fitted correctly on
adjusting screws
5
.
– Check the chain tension. ( p. 67)
–
Tighten nut
4
.
Guideline
Nut, rear wheel spin-
dle
M25x1.5 80 Nm (59 lbf ft)
Info
The wide adjustment range of the chain adjusters
(32 mm (1.26 in)) enables different secondary ratios
with the same chain length.
Chain adjusters
3
can be turned by 180°.
– Operate the foot brake lever repeatedly until the brake lin-
ings are in contact with the brake disc and there is a pressure
point.
Finishing work
– Remove the motorcycle from the lift stand. ( p. 46)

KTM 125 SX 2019 Specifications

General

Displacement	124.8 cm³
Starter	Kickstarter
Transmission	6-speed
Fuel System	Mikuni TMX 38
Front Brake	Disc brake
Rear Brake	Disc brake
Ground Clearance	375 mm
Seat Height	950 mm
EMS	Kokusan
Engine Type	1-cylinder, 2-stroke
Bore x Stroke	54 mm x 54.5 mm
Rear Suspension	WP shock absorber with linkage
Fuel Tank Capacity	7.5 l
Clutch	Wet, multi-disc clutch, Brembo hydraulics
Frame Design	Central tube frame made of chrome molybdenum steel