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Yamaha YP125R Service Manual

Yamaha YP125R
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ENGINE (YP250R)
3-29
5. Remove:
Final transmission oil drain bolt 1
Completely drain the final transmission oil.
6. Install:
Final transmission oil drain bolt
(along with the gasket )
7. Fill:
Final transmission oil
(specified amount of the recommended final
transmission oil)
8. Install:
O-ring
Oil filler cap
9. Start the engine, warm it up for several min-
utes, turn it off, and then check for oil leak-
age.
EAS20960
REPLACING THE AIR FILTER ELEMENT
T
IP
Check hoses are located on the bottom of the air
filter case. If dust or water or both collects in a
hose, remove the clamp from the hose, and then
remove the plug to drain the hose.
1. Remove:
Air filter case cover 1
Air filter element
2. Check:
Air filter element
Damage Replace.
T
IP
Replace the air filter element every 20000 km
of operation.
The air filter needs more frequent service if you
are riding in unusually wet or dusty areas.
3. Install:
Air filter element
Air filter case cover
NOTICE
ECA37P1017
Never operate the engine without the air filter
element installed. Unfiltered air will cause
rapid wear of engine parts and may damage
the engine. Operating the engine without the
air filter element will also affect the throttle
body tuning, leading to poor engine perfor-
mance and possible overheating.
T
IP
When installing the air filter element into the air
filter case cover, make sure that the sealing sur-
faces are aligned to prevent any air leaks.
T
R
.
.
Final transmission oil drain bolt
22 Nm (2.2 m·kgf, 16 ft·lbf)
Final transmission oil
Type
SAE 10W-30 type SE motor oil
Quantity
0.25 L (0.26 US qt, 0.22 Imp.qt)
1
2
1
New
1

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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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