Suspension Setting (Front Fork) - Yamaha YZ250FX 2023 Owner's Manual

EAM30179

SUSPENSION SETTING (FRONT FORK)

TIP
• If any of the following symptoms is experienced with the standard position as the base, make resetting
by reference to the adjustment procedure given in the same chart.
• Before any change, set the rear shock absorber sunken length to the standard figure 90–100 mm
(3.5–3.9 in).
Symptom
Jump
Stiff over entire
range
Unsmooth move-
ment over entire
range
Poor initial move-
ment
Soft over entire
range, bottoming
out
Stiff toward
stroke end
Soft toward
stroke end, bot-
toming out
Stiff initial move-
ment
Section
Large Medium
gap gap
  
  
 


  
Check
Small
gap
Compression
damping force
Oil amount
Spring
Outer tube
Inner tube
Slide metal

Piston metal
Lower bracket
tightening torque
Rebound damp-
ing force

Oil seals
Compression
damping force
Oil amount
Spring
Oil amount
Oil amount
Compression

damping force
9-6
CHASSIS
Adjust
Turn adjuster counterclockwise
(about 2 clicks) to decrease
damping.
Decrease oil amount by about 5–
10 cm³ (0.2–0.3 US oz, 0.2–0.4
Imp.oz).
Replace with soft spring.
Check for any bends, dents, other
noticeable scars, etc. If any,
replace affected parts.
Replace with a new one for
extended use.
Replace with a new one for
extended use.
Retighten to specified torque.
Turn adjuster counterclockwise
(about 2 clicks) to decrease
damping.
Apply grease in oil seal wall.
Turn adjuster clockwise (about 2
clicks) to increase damping.
Increase oil amount by about 5–
10 cm³ (0.2–0.3 US oz, 0.2–0.4
Imp.oz).
Replace with stiff spring.
Decrease oil amount by about 5
cm³ (0.2 US oz, 0.2 Imp.oz).
Increase oil amount by about 5
cm³ (0.2 US oz, 0.2 Imp.oz).
Turn adjuster counterclockwise
(about 2 clicks) to decrease
damping.