Yamaha TZ250M1 Owner's Service Manual page 86

REAR SHOCK ABSORBER SPRING PRELOAD
ADJUSTMENT
Seat height adjustment steps:
• Remove the cap 1.
• Loosen the lock bolt 2 and locknut 3.
• Turn the adjuster 4 in or out.
≠
Adjuster set length a a :
Standard length
27 mm (1.06 in)
NOTE:
If the adjuster set length a is changed, the
seat height will be increased or decreased
by twice the change.
CAUTION:
C C
Never attempt to turn the adjuster
beyond the maximum or minimum
length.
• Tighten the lock bolt and locknut.
¶
Lock bolt:
40 Nm (4.0 m•kg, 29 ft•lb)
Locknut:
38 Nm (3.8 m•kg, 27 ft•lb)
• Install the cap.
3. Install:
• Fuel tank
EC36M051
REAR SHOCK ABSORBER SPRING PRE-
LOAD ADJUSTMENT
1. Hold the machine on upright position by
placing the suitable stand.
2. Loosen:
• Locknut 1
NOTE:
When loosening the locknut, use the special
tool 2 which is included in the owner's tool kit.
3. Adjust:
• Spring preload
By turning the adjuster 3.
Stiffer ≥ ≥ Increase the spring preload.
(Turn the adjuster 3 3 in.)
Softer ≥ ≥ Decrease the spring preload.
(Turn the adjuster 3 3 out.)
3-33
INSP
ADJ
Extent of adjustment
21~33 mm
(0.83~1.30 in)