KTM 450 EXC USA Motorcycle User Manual


 
MAINTENANCE WORK ON CHASSIS AND ENGINE 56
9.50Adjusting chain guide x
400252-10
Remove screws and . Take off the chain guide.
Condition
Number of teeth: 44 teeth
Insert nut in hole . Position the chain guide.
Mount and tighten screws and .
Guideline
Remaining screws, chassis M6 10 Nm
(7.4 lbf ft)
Condition
Number of teeth: 45 teeth
Insert nut in hole . Position the chain guide.
Mount and tighten screws and .
Guideline
Remaining screws, chassis M6 10 Nm
(7.4 lbf ft)
9.51Checking brake discs
Warning
Danger of accidentsReduced braking efficiency due to worn brake disc(s).
Change the worn brake disc(s) without delay. (Your authorized KTM workshop will be glad to help.)
A
A
400257-10
Check the thickness of the front and rear brake discs at several places on the disk
to see if it conforms to measurement .
Info
Wear reduces the thickness of the brake disc around the area used by the
brake linings.
Brake discs - wear limit
Front 2.5 mm (0.098 in)
Rear 3.5 mm (0.138 in)
» If the brake disc thickness is less than the specified value:
Change the brake disc.
Check the front and rear brake discs for damage, cracking and deformation.
» If the brake disc shows signs of damage, cracking or deformation:
Change the brake disc.
9.52Checking free travel of hand brake lever
Warning
Danger of accidentsBrake system failure.
If there is no free travel on the hand brake lever, pressure builds up in the front brake circuit. The front brake can fail due
to overheating. Adjust free travel on hand brake lever according to specifications.