Installing The Rear Shock Absorber Assembly - Yamaha YZ450FX 2019 Owner's Service Manual

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1
a
a
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EAM30070
INSTALLING THE REAR SHOCK
ABSORBER ASSEMBLY
1. Lubricate:
• Bearing (lower side)
• Dust seal
• Collar
• Bushing
Recommended lubricant
Molybdenum disulfide grease
ECA24580
NOTICE
Do not apply the grease to the bearing outer
race because it will wear the rear shock ab-
sorber surface on which the bearing is press
fitted.
2. Lubricate:
• O-ring
Recommended lubricant
Molybdenum disulfide grease
3. Install:
• Bearing
• Stopper ring
New
(to rear shock absorber assembly (upper
side))
TIP
• Install the bearing parallel until the stopper ring
groove appears by pressing its outer race.
• After installing the stopper ring, push back the
bearing unit it contacts the stopper ring.
4. Install:
• Bearing "1"
• Bushing "2"
• Collar "3"
• Dust seal "4"
(to rear shock absorber assembly (lower
side))
TIP
Install the dust seals with their lips facing inward.
REAR SHOCK ABSORBER ASSEMBLY
3
4-59
Installed depth "a"
4.25 mm (0.17 in)
5. Lubricate:
• Connecting arm and frame bolt
• Relay arm and connecting arm bolt
• Relay arm and swingarm bolt
(circumference and threaded portion)
• Rear shock absorber assembly upper bolt
• Rear shock absorber assembly lower bolt
Recommended lubricant
Molybdenum disulfide grease
6. Install:
• Rear shock absorber assembly
TIP
• When installing the rear shock absorber as-
sembly, lift up the swingarm.
• Install the rear shock absorber assembly upper
bolt, and connecting arm bolt (frame side) from
the right.
• Install the rear shock absorber assembly lower
bolts, connecting arm bolt (relay arm side), and
relay arm bolt (swingarm side) from the left.
7. Tighten:
• Rear shock absorber assembly upper bolt
Rear shock absorber assembly
upper bolt
56 N·m (5.6 kgf·m, 41 lb·ft)
• Connecting arm bolt (frame side)
Connecting arm bolt (frame side)
80 N·m (8.0 kgf·m, 59 lb·ft)
• Connecting arm bolt (relay arm side)
Connecting arm bolt (relay arm
side)
80 N·m (8.0 kgf·m, 59 lb·ft)
• Relay arm bolt (swingarm side)