Yamaha YZ 2019 Series, Owner'S Service Manual, Page: 91 / 398

MAINTENANCE INTERVALS
3-3
Front fork leg(s)
Clean
 
Dust seal
Inspect and adjust
 
Replace oil
 
Replace oil seal

Clean and grease oil
seals and dust seals
  
Lithium-soap-based grease
Protector guide Replace

Rear shock
absorber
Inspect and adjust
 
Lubricate
 
*
Grease pillow balls and bear-
ings.
*After rain ride
Retighten
 
Check for tightening torques.
Brake(s)
Adjust lever position
and pedal height
 
Lubricate pivot point
 
Check brake disc sur-
face
 
Check fluid level and
leakage
 
Retighten brake disc
bolts, caliper bolts,
master cylinder bolts
and union bolts
 
Check for tightening torques.
Replace pads

Replace brake fluid

Every one year
Swingarm
Inspect, lube and
retighten
 
Molybdenum disulfide grease
Relay arm, con-
necting rod
Inspect, lube and
retighten
 
Molybdenum disulfide grease
Sidestand Lubricate

Lithium-soap-based grease
Steering head
Inspect free play and
retighten
 
Check for tightening torques.
Clean and lube

After rain ride
Replace bearings

Tire, wheels
Inspect air pressure,
wheel run-out, tire
wear and spoke
looseness
 
Retighten sprocket
bolt
 
Check the bearing

Replace bearings

Lubricate

Lithium-soap-based grease
Drive chain
Clean, lubricate,
slack, alignment
 
Use chain oil.
Replace

Use chain oil.
Drive chain guide Inspect

Inspect wear.
Item
Check or
maintenance job
After
break-in
Every
race
(about
2.5
hours)
Every
third
(about
7.5
hours)
Every
fifth
(about
12.5
hours)
As
required
Remarks