Maintenance work on chassis and engine – KTM 450 EXC-R EU User Manual

Page 38

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MAINTENANCE WORK ON CHASSIS AND ENGINE

36



Adjusting riding sag

b

x

Remove shock absorber. (

P. 36)

After removing the shock absorber, clean it thoroughly.

Choose and fit a suitable spring.

Specification

Spring rate

Weight of rider: 65… 75

bkg (143… 165blb.)

69

bN/mm (394blb/in)

Weight of rider: 75… 85

bkg (165… 187blb.)

72

bN/mm (411blb/in)

Weight of rider: 85… 95

bkg (187… 209blb.)

76

bN/mm (434blb/in)

Info

The spring rate is shown on the outside of the spring.
Smaller weight differences can be compensated by changing the spring preload.

Installing shock absorber. (

P. 36)

Check the static sag of the shock absorber. (

P. 34)

Check the riding sag of the shock absorber. (

P. 35)

Adjust the rebound damping of the shock absorber. (

P. 33)



Removing the shock absorber

b

x

Jack up the motorcycle. (

P. 32)

500075-10

Remove screw

b



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

b



, push splash protector

b



to the side, and remove the shock ab-

sorber.



Installing shock absorber

b

x

500075-11

Check parts for damage and wear. Replace damaged or worn parts.

Push splash protector

b



to the side and position the shock absorber. Mount and

tighten screw

b



.

Specification

Screw, top shock absorber

M12

80

bNm

(59

blbfbft)

Loctite

®

243™

Mount and tighten screw

b



.

Specification

Screw, bottom shock ab-
sorber

M12

80

bNm

(59

blbfbft)

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. 32)

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