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Yamaha YP125R Service Manual

Yamaha YP125R
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ENGINE (YP125R)
3-12
EAS37P1134
CHECKING THE ENGINE OIL LEVEL
1. Stand the vehicle on a level surface.
T
IP
Place the vehicle on the centerstand.
Make sure the vehicle is upright.
2. Start the engine, warm it up for several min-
utes, and then turn it off.
3. Remove:
Dipstick 1
4. Check:
Engine oil level
The engine oil level should be between the
minimum level mark a and maximum level
mark b.
Below the minimum level mark Add the
recommended engine oil to the proper level.
T
IP
Before checking the engine oil level, wait a few
minutes until the oil has settled.
Do not screw the dipstick in when inspecting
the oil level.
NOTICE
ECA37P1044
Do not allow foreign materials to enter the
crankcase.
5. Start the engine, warm it up for several min-
utes, and then turn it off.
6. Check the engine oil level again.
T
IP
Before checking the engine oil level, wait a few
minutes until the oil has settled.
7. Install:
Dipstick
EAS37P1094
CHANGING THE ENGINE OIL
1. Start the engine, warm it up for several min-
utes, and then turn it off.
2. Place a container under the engine oil drain
bolt.
3. Remove:
Engine oil filler cap 1
Engine oil drain bolt 2
(along with the gasket)
4. Drain:
Engine oil
(completely from the crankcase)
Type
SAE 10W-30, SAE 10W-40, SAE
15W-40, SAE 20W-40 or SAE
20W-50
Recommended engine oil grade
API service SG type or higher,
JASO standard MA
20 10 0
10
20 30 40 50 ˚C
SAE 10W-30
SAE 15W-40
SAE 20W-40
SAE 20W-50
SAE 10W-40
SAE 10W-50
10 30 50 70 90 1100 130 ˚F
1
b
a
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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