KTM 50 SX JUNIOR - Manual (Page 24)

ENGLISH
23
MAINTENANCE WORK ON CHASSIS AND ENGINE
»
Changing the basic position of the foot brake lever (50 SX Junior)
The basic position of the foot brake lever can be changed by unscrewing screw
[1] and then turning the retainer [2].
Afterwards, check the setting of the rear wheel brake.
Adjusting the control cable on the rear wheel (50 SX Junior)
You should be able to press the foot brake lever 5 to 10 mm (0.2-0.4 in)
before the rear wheel begins to brake.
The brake control cable is adjusted with adjusting screw [3] on the brake anchor
cover. First loosen lock nut [4] and then tighten again.
After making adjustments, always make sure the wheel turns freely.
Drum brake maintenance (50 SX Junior)
Drum brake maintenance is limited to occasional blowing out of the brake
drum and brake shoes. Brake drum and brake linings can be slightly
roughened with an abrasive tape.
Changing the basic position of the foot brake lever (50 SX) *
The basic setting of the foot brake pedal can be changed by turning the end
stop roller [5]. Using the push rod [6], the free play on the foot brake pedal
must be set.
Measured on the outside, the foot brake pedal must have 3-5 mm of free play,
before the push rod can move the piston in the brake cylinder (to be recog-
nised from the resistance on the foot brake pedal)
Checking the rear brake linings for wear (50 SX Junior)
The brake linings must be replaced when the distance between the hub brake
lever and the cable support, measured with the brake lever squeezed, is less
than 50 mm (2 in) (see illustration).
If the brake linings are replaced too late, i.e. when the lining is partly or fully
worn away, the metal shoes will rub against the brake drum, thus reducing
the braking effect and destroying the brake drum.
Checking the rear brake fluid level (50 SX)
The reservoir for the rear disk brake is on the right side of the motorcycle on
the rear brake cylinder.
No air bubble should be visible in inspection glass [A] when the vehicle is
parked in a vertical position.
If the brake fluid level drops below the upper edge of the inspection glass,
this indicates that the brake system is either leaking or the brake shoes com-
pletely worn.
min 50 mm
3-5 mm
3
4
6
5
5-10 mm
2
1
2
A