Yamaha YZ125X 2023, Owner'S Manual

Page: 47 / 146

MAINTENANCE INTERVALS
3-3
23 * Front fork
• Check operation and for oil leak-
age.
• Adjust if necessary.
• Clean dust seal and lubricate with
lithium-soap-based grease.
 
• Replace fork oil.  
• Replace oil seals. 
• Replace protector seal. 
24 * Shock absorber
assembly
• Check operation and adjust.
• Tighten if necessary.
 
• Lubricate with lithium-soap-based
grease.


(After
washing
the motor-
cycle or
riding in
the rain)
25 * Drive chain roller and
support guide
•
Check for wear or damage.
•
Replace if necessary.

26 * Rear suspension
•
Check operation and tighten if
necessary.
 
•
Lubricate with molybdenum disul-
fide grease.
 
27
* Swingarm pivot bear-
ings
•
Check bearing assemblies for
looseness.
• Lubricate with molybdenum disul-
fide grease.
 
28 Sidestand
• Lubricate with lithium-soap-based
grease.

29 * Steering head
• Check operation, free play, and
tighten if necessary.
 
• Clean and lubricate with lithium-
soap-based grease.

• Replace bearings. 
30
* Tires and wheels
• Check tire air pressure, wheel
runout, spokes for looseness, and
tires for wear.
 
• Tighten sprocket bolts if neces-
sary.
 
• Check wheel bearings for loose-
ness.

• Lubricate wheel bearings with lith-
ium-soap-based grease.

• Replace wheel bearings. 
31
* Moving parts and
cables
• Lubricate.
 
32 * Throttle grip
• Check operation.
• Check throttle grip free play, and
adjust if necessary.
•
Lubricate cable and grip housing.
 
No. Item Routine
After
break-in
Every
race
(about 2.5
hours)
Every
third race
(about 7.5
hours)
Every
fifth race
(about 12.5
hours)
As
required