Yamaha YZ 2018 Series, Owner'S Service Manual, Page: 389 / 402

CHASSIS
10-8
Heavy and
dragging
✓ ✓
Rebound
damping force Turn adjuster counterclock-
wise (about 2 clicks) to de-
crease damping.
Spring Replace with soft spring.
Poor road grip-
ping
✓
Rebound
damping force Turn adjuster counterclock-
wise (about 2 clicks) to de-
crease damping.
Low compres-
sion damping Turn adjuster clockwise (about
1 click) to increase damping.
High compres-
sion damping Turn adjuster clockwise (about
1/6 turn) to increase damping.
Spring set
length Set sunken length for 90–100
mm (3.5–3.9 in) when one
passenger is astride seat.
Spring Replace with soft spring.
Bottoming out
✓ ✓
High compres-
sion damping Turn adjuster clockwise (about
1/6 turn) to increase damping.
Spring set
length Set sunken length for 90–100
mm (3.5–3.9 in) when one
passenger is astride seat.
Spring Replace with stiff spring.
Bouncing
✓ ✓
Rebound
damping force Turn adjuster clockwise (about
2 clicks) to increase damping.
Spring Replace with soft spring.
Stiff travel
✓ ✓
High compres-
sion damping
Turn adjuster counterclock-
wise (about 1/6 turn) to de-
crease damping.
Spring set
length Set sunken length for 90–100
mm (3.5–3.9 in) when one
passenger is astride seat.
Spring Replace with soft spring.
Symptom
Section
Check Adjust
Jump
Large
gap
Medi-
um
gap
Small
gap