KTM 450 EXC USA Motorcycle User Manual


 
MAINTENANCE WORK ON CHASSIS AND ENGINE 44
Info
Turn clockwise to increase damping, turn counterclockwise to reduce sus-
pension damping.
9.18Adjusting spring preload of the fork
800015-10
Turn adjusting screws counterclockwise until they stop.
Info
Make sure the setting is identical on both fork legs.
Turn back clockwise by the number of turns corresponding to the fork type.
Guideline
Spring preload - Preload Adjuster
Comfort 0 turn
Standard 2 turns
Sport 4 turns
Info
Turn clockwise to increase spring preload, turn counterclockwise to reduce
spring preload.
Adjusting the spring preload has no influence on the absorption setting of
the rebound damping.
Basically, however, you should set the rebound damping higher with a
higher spring preload.
9.19Bleeding fork legs
Jack up the motorcycle. ( p. 38)
100021-10
Remove bleeder screws briefly.
Any excess pressure escapes from the interior of the fork.
Mount and tighten bleeder screws.
Remove the motorcycle from the work stand. ( p. 38)
9.20Cleaning the dust boots of the fork legs
Jack up the motorcycle. ( p. 38)
Loosen the fork protector. ( p. 45)
500088-10
Push dust boots of both fork legs downwards.
Info
The dust boots should remove dust and coarse dirt particles from the fork
tubes. Over time, there is an ingress of dirt inside the boots. If this dirt is
not removed, it may cause the oil seals to leak.
Warning
Danger of accidentsReduced braking efficiency due to oil or grease on the
brake discs.
Always keep the brake discs free of oil and grease, and clean them with
brake cleaner when necessary.
Clean and oil the dust boots and inner fork tube of both fork legs.
Universal oil spray ( p. 108)
Press the dust boots back into their normal position.