Adding The Gear Oil - KTM 125 SX 2023 Owner's Manual

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.
(125 XC US)
–
Remove the engine guard. (
Main work
–
Remove gear oil drain plug
–
Remove filler plug
–
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
a new seal ring.
Guideline
Gear oil drain plug
with magnet
–
Fill up with gear oil.
Gear oil
–
Mount and tighten filler plug
W00086-10
Danger
Danger of poisoning Exhaust 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. (
(125 XC US)
–
Install the engine guard. (
Preparatory work
–
Park the motorcycle on a level surface.
SERVICE WORK ON THE ENGINE 18
p. 61)
1
with magnet.
2
with the O-ring.
1
with the magnet and
M12x1.5 20 Nm (14.8 lbf ft)
0.80 l Engine oil
(0.85 qt.) (15W/50)
(
2
together with the O-ring.
p. 118)
p. 62)
p. 138)
119