Suzuki RM-Z450, Manual

Page: 34 / 121

3-17
Spring Pre-load Adjustment
1. Place a block under the chas-
sis tube.
2. Remove the muffler and seat
rail assembly.
(Refer to Service Manual)
3. Loosen the lock bolt
1
with
the special tool.
4. Turn the adjuster
2
clockwise
or counterclockwise to change
the spring pre-load.

09910-60611:
Adjustable hook wrench

Standard spring set length:
When compressed to 5.5
mm (0.22 in) from spring
free length
[Standard]:
234.5 mm (9.232 in)

Spring set length
adjustable range:
226 – 237 mm (8.90 – 9.33 in)
[at spring free length
240 mm (9.45 in)]
5. After adjusting the spring pre-
load, position the spring
adjuster lock
3
as shown in
the figure and tighten the
spring adjuster lock bolt
1
to
the specified torque.

Spring adjuster lock bolt:
5.0 N·m (0.51 kgf-m, 3.70 lbf-ft)
NOTICE
Turning the adjuster
2
without
loosening the lock bolt
1
can
damage the rear cushion unit.
Turn the adjuster after loosen-
ing the lock bolt.
Forward
54 – 60°