Suzuki GSX-R 1000 Service Manual: Front fork disassembly and assembly
Refer to “front fork removal and installation” (page 2b-
2).
Note
the right and left front forks are installed
symmetrically and therefore the disassembly
procedure for one side is the same as that for
the other side. |
Disassembly
- Turn the spring pre-load adjuster (1) to the softest
position.
- Loosen the front fork cap using the special tool and
vise.
Caution
do not clamp the outer tube too tight. |
Special tool
(a): 09941–53670 (front fork cap socket
wrench (45 mm))
- Loosen the rod guide case installed in the inner tube
using the special tool.
Special tool
(b): 09940–84710 (rod guide case
wrench)
Hold the
front fork cap when removing the
rod guide case, or it will jump out due to the
spring pressure. |
- Remove the piston rod assembly (2).
- Remove the spring collar b (3) and spring (4).
- Drain fork oil and remove the spring collar a (5).
- Remove the dust seal (6).
- Remove the oil seal stopper ring (7).
Caution
- scratches on the inner tube could cause
oil leaks.
- Avoid scratching when removing.
|
- Pull out the inner tube from the outer tube.
- Remove the slide bushing (8) from the inner tube.
- Remove the following parts from the inner tube.
- guide bushing (9)
- oil seal spacer (10)
- oil seal (11)
- oil seal stopper ring (7)
- dust seal (6)
- Hold the piston rod assembly with the special tool
and vise.
Special tool
(a): 09941–53670 (front fork cap
socket
wrench (45 mm))
- Loosen the piston rod nut (12) and disassemble the
piston rod as shown.
Assembly
Caution
- clean all fork parts before reassembling.
- Replace the o-rings, seals and bushings
with new ones.
- Apply specified front fork oil when
installing the o-rings, slide bushing and
guide bushing.
|
- Cover the inner tube with a plastic film.
- Install the following parts to the inner tube.
- new dust seal (1)
- stopper ring (2)
- new oil seal (3)
Caution
- scratches on the oil seal lip may cause oil
leakage. When installing the seals, place a
plastic film over the slide bushing groove
and edges of the inner tube to avoid
damaging the seals’ lip.
- Misdirecting of the parts may cause
inferior operation and oil leakage.
- Face the stamp mark side “a” of the oil
seal to the dust seal side.
|
- Remove the plastic film and install the oil seal spacer
(4), guide bushing (5) and slide bushing (6) keep
them free from dust.
Caution
- face the grooved side “b” of the oil seal
spacer to the outer tube side.
- Position the slit “c” of slide bushing 90°
against the traveling direction.
|
- Insert the inner tube into the outer tube.
- Press fit the guide bushing (5) using the special
tools.
- Press fit the new oil seal (3) using the special tools
until the stopper ring groove on the outer tube can be
seen.
Special tool
(a): 09940–52861 (front fork oil
seal
installer set)
- Install the stopper ring (2).
Caution
make sure that the stopper ring is fitted
securely into the groove. |
- Press fit the dust seal (1).
- Insert the spring collar a (7) and spring (8) into the
inner tube.
- Insert the spring collar b (9) into the inner tube.
Caution
face the flange “d” of the collar to the spring
side. |
- Pour specified fork oil until its surface passes the
side holes of inner tube.
: Fork oil 99000–99001–ss5
(suzuki
fork oil ss-05 or equivalent)
- Slowly stroke the outer tube more than ten times to
pump out air.
Note
take extreme attention to pump out air
completely. |
- Assemble the piston rod and rod guide case (10).
- Tighten the piston rod nut (11) with the special tool
and vise.
Tightening torque
piston rod nut (a): 28 n·m (2.8 Kgf-m, 20.0 Lbf-ft)
- Insert the piston rod assembly into the inner tube
and temporarily tighten the rod guide case by hand.
Caution
insert the piston rod assembly into the inner
tube with the outer tube lifted up. Be sure not
to damage the piston ring (12) of the rod
guide case. |
Special tool
(b): 09940–84710 (rod guide case
wrench)
- Tighten the rod guide case to the specified torque.
Refer to “rod guide case tightening torque” .
Special tool
(b): 09940–84710 (rod guide case
wrench)
Tightening torque
rod guide case: 90 n·m (9.0 Kgf-m, 65.0 Lbf-ft)
- Pour specified fork oil up to the top of the rod guide
case.
: Fork oil
99000–99001–ss5 (suzuki
fork oil ss-05 or equivalent)
- Push the front fork cap, then stroke the outer tube
several times to pump out air.
Note
take extreme attention to pump out the air
completely. |
- Hold the front fork vertically and adjust the oil level
using the special tool.
Special tool
(c): 09943–74111 (front fork oil
level
gauge)
Fork oil level “a”
75.0 Mm (2.95 In)
- Apply fork oil to the o-ring (13).
Caution
use new o-ring to prevent oil leakage. |
- Tighten the front fork cap to the specified torque.
Caution
do not clamp the outer tube too tight. |
Tightening torque
front fork cap: 35 n·m (3.5 Kgf-m, 25.5 Lbf-ft)
Special tool
(a): 09941–53670 (front fork cap
socket
wrench (45 mm))
After installing the front fork, adjust the spring pre-load
and two kinds of damping force as follows:
Adjust the
left and right front forks to the
same setting.
Spring pre-load ...
Refer to “front fork disassembly and assembly” .
Inner and outer tubes
Inspect the inner tube and outer tube for scratches
Slide bushing / guide bushing
Inspect the slide bushing and guide bus ...
Other materials:
Rear brake light switch inspection and adjustment
Check the rear brake light switch so that the brake light
will come on just before pressure is felt when the brake
pedal is depressed. If the brake light switch adjustment
is necessary, turn the adjuster nut (1) in or out while
holding the brake pedal.
Brake fluid level check
Refer to “bra ...
Conclusion
Traffic, road and weather conditions
vary. Other motorists'
actions are unpredictable. Your
motorcycle's condition can
change. These factors can best
be dealt with by giving every ride
your full attention.
Circumstances beyond your control
could lead to an accident. You
need to prepare fo ...
Light bulb replacement
The wattage rating of each bulb is
shown in the following chart.
When replacing a burned-out
bulb, always use the same wattage
rating according to the following
chart.
Caution
Using a light bulb with the
wrong wattage rating can
cause electrical system damage
or shorte ...