KTM 300 EXC, Repair Manual

Page: 62 / 289

9 SHOCK ABSORBER, SWINGARM
60
9.6 Checking the riding sag of the shock absorber
400990-10
–
Measure distance
A
of the unloaded rear wheel. ( p. 59)
–
With another person holding the motorcycle, the rider, wearing full protective cloth-
ing, sits on the seat in a normal sitting position (feet on footrests) and bounces up
and down a few times.
The rear wheel suspension levels out.
–
Another person now measures the distance between the rear axle and the fixed
point.
–
Note down the value as dimension
C
.
Info
The riding sag is the difference between measurements
A
and
C
.
–
Check the riding sag.
Guideline
Riding sag 105… 115 mm (4.13… 4.53 in)
» If the riding sag differs from the specified measurement:
–
Adjust the riding sag. ( p. 61)
9.7 Adjusting the spring preload of the shock absorber
Caution
Danger of accidents
Disassembly of pressurized parts can lead to injury.
–
The shock absorber is filled with high density nitrogen. Adhere to the description provided.
Info
Before changing the spring preload, make a note of the present setting, e.g., by measuring the length of the spring.
Preparatory work
–
Raise the motorcycle with the lift stand. ( p. 10)
–
Remove the shock absorber. ( p. 61)
–
After removing the shock absorber, clean it thoroughly.
401026-10
Main work
–
Loosen screw
1
.
–
Turn adjusting ring
2
until the spring is no longer under tension.
Hook wrench (T106S) ( p. 276)
–
Measure the overall spring length when not under tension.
–
Tighten the spring by turning adjusting ring
2
to measurement
A
.
Guideline
Spring preload
Comfort 7 mm (0.28 in)
Standard 7 mm (0.28 in)
Sport 7 mm (0.28 in)
Info
Depending on the static sag and/or the riding sag, it may be necessary to
increase or decrease the spring preload.
–
Tighten screw
1
.
Guideline
Screw, shock absorber adjusting ring M5 5 Nm (3.7 lbf ft)
Finishing work
–
Install the shock absorber. ( p. 61)
–
Remove the motorcycle from the lift stand. ( p. 10)