Yamaha YFZ 2018 Owner's Manual page 40

rebound damping force adjusting screw or the
oil reservoir with your bare hand or skin until
the suspension components have cooled.
Notes on adjusting the suspension
 A special wrench can be obtained at a Yamaha
dealer to make the spring preload adjustment.
 When adjusting the damping force settings, turn
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the adjuster in direction (a) until it stops, and
then count the turns or clicks in direction (b).
 Although a damping force adjuster may turn or
click beyond the stated minimum settings, such
adjustments are ineffective and may damage
the suspension.
ECB00091
NOTICE
Never turn an adjusting mechanism beyond
the minimum and maximum settings.
Spring preload
1. Remove the cowling. (See page 8-10.)
2. Remove the clip from the hose holder, re-
move the bolt, and then move the blow-by
gas chamber away from the vehicle.
3
1 2
1. Hose holder
2. Clip
3. Bolt
4. Blow-by gas chamber
3. Loosen the clamp screw at the air filter case
side.
4-16
4