KTM 450 EXC USA Motorcycle User Manual


 
MAINTENANCE WORK ON CHASSIS AND ENGINE 42
9.12Adjusting riding sag x
Remove shock absorber. x ( p. 42)
After removing the shock absorber, clean it thoroughly.
Choose and fit a suitable spring.
Guideline
Spring rate
Weight of rider: 65… 75 kg (143… 165 lb.) 69 N/mm (394 lb/in)
Weight of rider: 75… 85 kg (165… 187 lb.) 72 N/mm (411 lb/in)
Weight of rider: 85… 95 kg (187… 209 lb.) 76 N/mm (434 lb/in)
Info
The spring rate is shown on the outside of the spring.
Smaller weight differences can be compensated by changing the spring preload.
Install the shock absorber. x ( p. 42)
Check the static sag of the shock absorber. ( p. 40)
Check the riding sag of the shock absorber. ( p. 41)
Adjust the rebound damping of the shock absorber. ( p. 39)
9.13Removing the shock absorber x
Jack up the motorcycle. ( p. 38)
800023-10
Remove screw and lower the rear wheel with the swing arm as far as possible
without blocking the rear wheel. Fix the rear wheel in this position.
Remove screw , push splash protector to the side, and remove the shock
absorber.
9.14Installing the shock absorber x
800023-11
Push splash protector to the side and position the shock absorber. Mount and
tighten screw .
Guideline
Screw, top shock absorber M12 80 Nm
(59 lbf ft)
Loctite
®
243™
Mount and tighten screw .
Guideline
Screw, bottom shock
absorber
M12 80 Nm
(59 lbf ft)
Loctite
®
243™
Info
The heim joint for the shock absorber at the swing arm is Teflon coated. It
must not be greased with grease or with other lubricants. Lubricants dis-
solve the Teflon coating, thereby drastically reducing the service life.
Remove the motorcycle from the work stand. ( p. 38)