Maintenance Intervals; Regular Inspection And Adjustments - Yamaha YZ125(N)/LC Owner's Service Manual

EC300000

REGULAR INSPECTION AND ADJUSTMENTS

EC310051

MAINTENANCE INTERVALS

The following schedule is intended as a general guide to maintenance and lubrication. Bear in mind
that such factors as weather, terrain, geographical location, and individual usage will alter the required
maintenance and lubrication intervals. If you are a doubt as to what intervals to follow in maintaining
and lubricating your machine, consult your Yamaha dealer.
PISTON
Inspect and clean
Replace
PISTON RING
Inspect
Replace
PISTON PIN, SMALL END BEARING
Inspect
Replace
3
CYLINDER HEAD
Inspect and clean
Retighten
CYLINDER
Inspect and clean
Replace
YPVS
Inspect and clean
CLUTCH
Inspect and adjust
Replace
TRANSMISSION
Replace oil
Inspect
Replace bearing
SHIFT FORK, SHIFT CAM, GUIDE BAR
Inspect
ROTOR NUT
Retighten
MUFFLER
Inspect
Clean
CRANK
Inspect and clean
CARBURETOR
Inspect, adjust and clean
SPARK PLUG
Inspect and clean
Replace
DRIVE CHAIN
Lubricate, slack, alignment
Replace
MAINTENANCE INTERVALS
After
Item
break-
Every Every Every
race third fifth
in
3-1
INSP
ADJ
As re-
Remarks
quired
Inspect crack
Remove carbon
Check ring end gap
Remove carbon
Check gasket
Inspect score marks
Inspect wear
Inspect housing, friction
plate, clutch plate and
spring
Yamalube 4 (10W-30) or
SAE 10W-30 SE motor oil
Inspect wear
Use chain lube
Chain slack: 40~50 mm
(1.6~2.0 in)