SRAM Rock Shox Yari 2019 Service Manual page 18

Clean the inside and outside of the lower leg.
4
Clean the wiper seals.
Install the foam rings under the wiper seals.
5
Confirm the foam rings are installed evenly in the space under the
wiper seals and do not protrude over the bushings.
50 Hour Service Continue the 50 Hour Service with Lower Leg Installation.
18
Lower Leg Service