Handling The Rear Shock Absorber; Disposing Of A Rear Shock Absorber; Removing The Rear Shock Absorber Assembly; Removing The Bearing - Yamaha YZ 2017 Series Owner's Service Manual

HANDLING THE REAR SHOCK ABSORBER

EASB29B181
EWA
WARNING
This rear shock absorber contains highly
compressed nitrogen gas. Before handling
the rear shock absorber, read and make
sure that you understand the following in-
formation. The manufacturer cannot be held
responsible for property damage or person-
al injury that may result from improper han-
dling of the rear shock absorber.
• Do not tamper or attempt to open the rear
shock absorber.
• Do not subject the rear shock absorber to
an open flame or any other source of high
heat. High heat can cause an explosion
due to excessive gas pressure.
• Do not deform or damage the rear shock
absorber in any way. Rear shock absorber
damage will result in poor damping perfor-
mance.
TIP
A break-in is required up to about 50 km of run-
ning.
DISPOSING OF A REAR SHOCK ABSORB- EASB29B182
ER
Before disposing the rear shock absorber, be
sure to extract the nitrogen gas from valve "1".
EWA
WARNING
• Wear protective glasses to prevent your
eyes from damage due to possible gas or
metal chips scattered.
• To dispose of a damaged or a worn-out
rear shock absorber, take the unit to your
Yamaha dealer for this disposal proce-
dure.
REAR SHOCK ABSORBER ASSEMBLY
REMOVING THE REAR SHOCK ABSORBER
EASB29B183
ASSEMBLY
1. Use a suitable stand to raise the rear wheel
off the ground.
EWA
WARNING
Securely support the vehicle so that there is
no danger of it falling over.
2. Remove:
• Rear shock absorber assembly lower bolt
"1"
TIP
While removing the rear shock absorber as-
sembly lower bolt, hold the swingarm so that it
does not drop down.
3. Remove:
• Rear shock absorber assembly upper bolt
• Rear shock absorber assembly

REMOVING THE BEARING

EASB29B184
1. Remove:
• Stopper ring (upper bearing) "1"
TIP
1
Press in the bearing while pressing its outer
race and remove the stopper ring.
4-59
1