2004 YAMAHA YZ125LC checking oil

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Page 20 of 568

YAMAHA YZ125LC 2004  Notices Demploi (in French) EC0A0000
CONTENTS
CHAPTER 1
GENERAL INFORMATION
DESCRIPTION............................................1-1
MACHINE IDENTIFICATION......................1-2
IMPORTANT INFORMATION.....................1-3

Page 39 of 568

YAMAHA YZ125LC 2004  Notices Demploi (in French) 1-8
GEN
INFO
SPECIAL TOOLS
Part number Tool name / How to use IIIustration
YU-24460-01, 90890-01325Radiator cap testerYU-24460-01 90890-01325
YU-33984, 90890-01352 AdapterYU-33984 90890-01352
These to

Page 158 of 568

YAMAHA YZ125LC 2004  Notices Demploi (in French) 3-13
INSP
ADJ
TRANSMISSION OIL REPLACEMENT
3. Check:
9Transmission oil level
EC35K002
TRANSMISSION OIL REPLACEMENT
1. Start the engine and warm it up for several
minutes and wait for five minute.
2. P

Page 182 of 568

YAMAHA YZ125LC 2004  Notices Demploi (in French) 3-25
DRIVE CHAIN SLACK ADJUSTMENT
INSP
ADJ
EC36A061
DRIVE CHAIN SLACK ADJUSTMENT
1. Elevate the rear wheel by placing the suit-
able stand under the engine.
2. Check:
9Drive chain slack a
Above the se

Page 430 of 568

YAMAHA YZ125LC 2004  Notices Demploi (in French) 5-35
CHASFRONT FORK
19. Wait ten minutes until the air bubbles have
been removed from the front fork, and the
oil has dispense evenly in system before
setting recommended oil level.
NOTE:
Fill with th

Page 492 of 568

YAMAHA YZ125LC 2004  Notices Demploi (in French) 6-2
ELECIGNITION SYSTEM
EC620000
IGNITION SYSTEM
EC621003
INSPECTION STEPS
Use the following steps for checking the possibility of the malfunctioning engine being attributable to
ignition system failu

Page 534 of 568

YAMAHA YZ125LC 2004  Notices Demploi (in French) 7-12
TUNSETTING
EC71M010
Change of the heat range of spark plugs
Judging from the discoloration of spark plugs, if
they are found improper, it can be corrected by
the following two methods; changing c