Yamaha YZ250F(N)/LC Owner's Service Manual page 576

REAR SHOCK ABSORBER
2. Tighten:
Adjuster 1
3. Adjust:
Spring length (installed) a
Standard
248 mm (9.76 in)
*262 mm (10.31 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
Rear shock absorber
1. Install:
Dust seal 1
O-ring 2
Collar 3
NOTE:
Apply the molybdenum disulfide grease on
the bearing.
Apply the lithium soap base grease on the
dust seals, O-rings and collars.
5 - 62
CHAS
Spring length (installed) a:
length
242 ~ 260 mm
(9.53 ~ 10.24 in)
*257 ~ 275 mm
(10.12 ~ 10.83 in)
Extent of
adjustment