Yamaha YZ426F(M)/LC Owner's Service Manual page 534

REAR SHOCK ABSORBER
2. Install:
Stopper ring 1
NOTE:
After installing the stopper ring, push back the
bearing until it contacts the stopper ring.
EC585111
Spring (rear shock absorber)
1. Install:
Spring 1
Spring guide (upper) 2
Spring guide (lower) 3
2. Tighten:
Adjuster 1
3. Adjust:
Spring length (installed) a
Standard
253 mm (9.96 in)
*260 mm (10.24 in)
* For EUROPE
NOTE:
The length of the spring (installed) changes
1.5 mm (0.06 in) per turn of the adjuster.
CAUTION:
ACHTUNG:
Never attempt to turn the adjuster beyond
the maximum or minimum setting.
4. Tighten:
Locknut 1
5 - 61
CHAS
New
Spring length (installed) a
length
247 ~ 265 mm
(9.72 ~ 10.43 in)
*257 ~ 275 mm
(10.12 ~ 10.83 in)
Extent of
adjustment