Yamaha YZ 2018 Series, Owner'S Service Manual

Page: 119 / 402

CHASSIS
3-33
Compression damping (for slow compres-
sion damping)
ECA
NOTICE
Do not turn the adjuster forcibly beyond its
adjusting range.
1. Adjust:
• Compression damping (for slow compres-
sion damping)
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Turn the adjuster “1” in the direction of “a” or
“b” to make an adjustment.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
EASB29B107
CHECKING THE TIRES
1. Measure:
• Tire pressure
Out of specification

Regulate.
TIP
• Check the tire while it is cold.
• Loose bead stoppers allow the tire to slip off
its position on the rim when the tire pressure
is low.
• If the tire valve stem is found tilted, the tire is
considered to be slipping off its position. Cor-
rect the tire position.
EASB29B108
CHECKING AND TIGHTENING THE
SPOKES
1. Check:
• Spokes
Bend/damage

Replace.
Loose

Tighten.
TIP
A tight spoke will emit a clear, ringing tone; a
loose spoke will sound flat.
2. Tighten:
• Spokes
Use a spoke nipple wrench “1” for tighten-
ing.
Direction “a”
Compression damping is increased
(suspension is harder).
Direction “b”
Compression damping is decreased
(suspension is softer).
Slow compression damping
Minimum (soft)
20 click(s) in direction “b”*
Standard
13 click(s) in direction “b”*
Maximum (hard)
Adjusting screw fully turned in
direction “a”
* With the adjusting screw fully turned in
direction “a”
Tire air pressure (measured on cold
tires)
Front
100 kPa (1.00 kgf/cm
2
, 15 psi)
Rear
100 kPa (1.00 kgf/cm
2
, 15 psi)
1
b
a
1