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KTM 125 SX 2023 User Manual

KTM 125 SX 2023
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SERVICE WORK ON THE ENGINE 18
119
(125 XC US)
Remove the engine guard. ( p. 61)
W00086-10
Main work
Remove gear oil drain plug
1
with magnet.
Remove filler plug
2
with the O-ring.
Let the gear oil drain fully.
Thoroughly clean the gear oil drain plug with magnet.
Clean the sealing surface on the engine.
Mount and tighten gear oil drain plug
1
with the magnet and
a new seal ring.
Guideline
Gear oil drain plug
with magnet
M12x1.5 20 Nm (14.8 lbf ft)
Fill up with gear oil.
Gear oil 0.80 l
(0.85 qt.)
Engine oil
(15W/50)
( p. 138)
Mount and tighten filler plug
2
together with the O-ring.
Danger
Danger of poisoningExhaust gases are toxic and inhal-
ing them may result in unconsciousness and death.
Always make sure there is sufficient ventilation
when running the engine.
Use effective exhaust extraction when starting or
running the engine in an enclosed space.
Start the engine and check it for leaks.
Finishing work
Check the gear oil level. ( p. 118)
(125 XC US)
Install the engine guard. ( p. 62)
18.4 Adding the gear oil
Info
Too little gear oil or poor-quality gear oil results in premature wear to the transmission.
Gear oil must only be topped up when the engine is cold.
Preparatory work
Park the motorcycle on a level surface.

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KTM 125 SX 2023 Specifications

General IconGeneral
BrandKTM
Model125 SX 2023
CategoryMotorcycle
LanguageEnglish

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