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Yamaha YP125R Service Manual

Yamaha YP125R
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FRONT FORK
4-53
EAS23010
CHECKING THE FRONT FORK LEGS
The following procedure applies to both of the
front fork legs.
1. Check:
Inner tube
Outer tube
Bends/damage/scratches Replace.
WARNING
EWA13650
Do not attempt to straighten a bent inner
tube as this may dangerously weaken it.
2. Measure:
Spring free length a
Out of specification Replace.
3. Check:
Damper rod
Damage/wear Replace.
Obstruction Blow out all of the oil passag-
es with compressed air.
Oil flow stopper
Damage Replace.
NOTICE
ECA37P1032
When disassembling and assembling the
front fork leg, do not allow any foreign mate-
rial to enter the front fork.
EAS23030
ASSEMBLING THE FRONT FORK LEGS
The following procedure applies to both of the
front fork legs.
WARNING
EWA13660
Make sure the oil levels in both front fork
legs are equal.
Uneven oil levels can result in poor han-
dling and a loss of stability.
T
IP
When assembling the front fork leg, be sure to
replace the following parts:
Oil seal
Dust seal
Clip
Before assembling the front fork leg, make
sure all of the components are clean.
1. Install:
Damper rod 1
NOTICE
ECA37P1033
Allow the damper rod to slide slowly down
the inner tube 2 until it protrudes from the
bottom of the inner tube. Be careful not to
damage the inner tube.
2. Lubricate:
Inner tubes outer surface
3. Tighten:
Damper rod bolt 1
Fork spring free length
340.0 mm (13.39 in)
Limit
333.0 mm (13.11 in)
3
2
1
Recommended oil
Fork oil 10W or equivalent
T
R
.
.
Damper rod bolt
30 Nm (3.0 m·kgf, 22 ft·lbf)
LOCTITE®
1 2

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Yamaha YP125R Specifications

General IconGeneral
Engine TypeLiquid-cooled, 4-stroke, SOHC, 4-valve
Bore x Stroke52.4 mm x 57.9 mm
Fuel SystemFuel Injection
Ignition SystemTCI
TransmissionV-Belt Automatic
Front SuspensionTelescopic fork
Rear SuspensionUnit Swing
Front BrakeHydraulic single disc, Ø267 mm
Starter SystemElectric
Rear Tyre140/70-14M/C 62P (Tubeless)

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