Yamaha YZ125(P)/LC, Owner'S Service Manual

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7-23
TUN
SETTING
EC72H010
Suspension setting
9
Front fork
NOTE:
9
If any of the following symptoms is experienced with the standard position as the base, make reset-
ting by reference to the adjustment procedure given in the same chart.
9
Before any change, set the rear shock absorber sunken length to the standard figure 90~100 mm
(3.5~3.9 in).
Section
Symptom
Jump
Large Medium Small Check Adjust
gap gap gap
Compression damping Turn adjuster counterclockwise (about 2 clicks)
Stiff over entire
to decrease damping.
range
1 1 1
Oil level (oil amount) Decrease oil level by about 5~10 mm (0.2~0.4
in).
Spring Replace with soft spring.
Unsmooth
Outer tube Check for any bends, dents, and other notice-
movement over
1 1 1 1
Inner tube able scars, etc. If any, replace affected parts.
entire range
Under bracket tightening Retighten to specified torque.
torque
Poor initial
Rebound damping Turn adjuster counterclockwise (about 2 clicks)
movement
1
to decrease damping.
Oil seal Apply grease in oil seal wall.
Compression damping Turn adjuster clockwise (about 2 clicks) to in-
Soft over entire crease damping.
range, bottoming
1 1
Oil level (oil amount) Increase oil level by about 5~10 mm (0.2~0.4
out in).
Spring Replace with stiff spring.
Stiff toward stroke
1
Oil level (oil amount) Decrease oil level by about 5 mm (0.2 in).
end
Soft toward stroke
1
Oil level (oil amount) Increase oil level by about 5 mm (0.2 in).
end, bottoming out
Stiff initial
1 1 1 1
Compression damping
Turn adjuster counterclockwise (about 2 clicks)
movement to decrease damping.
Compression damping Turn adjuster clockwise (about 2 clicks) to in-
crease damping.
Low front, tending
Rebound damping Turn adjuster counterclockwise (about 2 clicks)
to lower front
1 1
to decrease damping.
posture
Balance with rear end Set sunken length for 95~100 mm (3.7~3.9 in)
when one passenger is astride seat (lower rear
posture).
Oil level (oil amount) Increase oil level by about 5 mm (0.2 in).
Compression damping Turn adjuster counterclockwise (about 2 clicks)
to decrease damping.
“Obtrusive” front,
Balance with rear end Set sunken length for 90~95 mm (3.5~3.7 in)
tending to upper
1 1
when one passenger is astride seat (upper rear
front posture
posture).
Spring Replace with soft spring.
Oil lever (oil amount) Decrease oil level by about 5~10 mm (0.2~0.4
in).
5NY-9-30-7B 5/23/01 9:22 PM Page 22