Yamaha YFZ 2018 Owner's Manual page 42

2
4
1. Air filter case
2. Bolt
6. Disconnect the coupler.
1. Coupler
7. Loosen the clamp screw at the throttle body
side, and then disconnect the air intake duct
from the throttle body.
2
1
1. Clamp screw
2. Air intake duct
1
8. Loosen the locknut.
9. Turn the spring preload adjusting nut in direc-
tion (a) to increase the spring preload and
thereby harden the suspension. Turn in direc-
tion (b) to decrease the spring preload and
thereby soften the suspension.
4-18
1 2