Honda CRF450R Owner's Manual page 90

6. SUSPENSION ADJUSTMENT
Set the lower end (axle holder) of the slider in a vise
with a piece of wood or soft jaws to avoid to damage.
CAUTION:
• Do not overtighten the axle holder.
Temporarily install the fork damper to the fork.
Push out the fork damper piston rod from the axle
holder of the slider by pushing the fork damper.
Apply pressure to the fork damper and insert the spe-
cial tool or mechanic's stopper tool between the axle
holder and lock nut.
Measure the thread length again.
STANDARD: 0.43 – 0.51 in (11 – 13 mm)
Install the push rod into the piston rod until it stops.
NOTE :
• Check the push rod installation by turning the push
rod right and left.
Install a new O-ring to the center bolt.
Install the fork center bolt to the fork damper piston
rod aligning the center bolt adjusting rod to the push
rod. Tighten the center bolt fully by hand.
(1) CENTER BOLT (4) STOPPER TOOL
(2) PUSH ROD (5) ADJUSTING ROD
(3) LOCK NUT (6) O-RING
88
Measure the length of the lock nut and center bolt clear-
ance.
STANDARD: 0.06 – 0.08 in (1.5 – 2.0 mm)
If the clearance is out of specification, check the lock
nut and center bolt installation.
(1) LOCK NUT
(2) CENTER BOLT
Tighten the lock nut to the center bolt closely by hand.
Tighten the lock nut to the specified torque.
TORQUE: 16 Ibf ft (22 N m, 2.2 kgf m)
(1) CENTER BOLT
(2) LOCK NUT
Apply fork oil to the center bolt O-ring.
Remove the special tool or mechanic's stopper tool
while applying pressure to the fork damper.
Install the center bolt to the axle holder and tighten it to
the specified torque.
TORQUE: 51 Ibf ft (69 N m, 7.0 kgf m)
(1) CENTER BOLT
Measure the length between the axle holder and outer
tube.
STANDARD: 317 2 mm
Compare the length at assembly and at disassembly.
They should be the same length.
If the length at assembly is longer than at disassembly,
check the center bolt and lock nut installation.
(1) STANDARD LENGTH