2002 YAMAHA WR 426F %27

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Page 338 of 776

YAMAHA WR 426F 2002  Manuale de Empleo (in Spanish) 3 - 49
INSP
ADJ
IGNITION TIMING CHECK
IGNITION TIMING CHECK
1. Remove:
Timing plug 1 
2. Attach:
Timing light 
Inductive tachometer 
To the spark plug lead. 
3. Check:
Ignition timing
Timing light

Page 339 of 776

YAMAHA WR 426F 2002  Manuale de Empleo (in Spanish) INSP
ADJ
CONTROLE DE L’AVANCE A 
L’ALLUMAGE
1. Déposer:
Bouchon de distribution 1 
2. Attacher:
Lampe stroboscopique 
Compte-tours inductif 
Au fil de la bougie. 
3. Contrôler:
Avance à l

Page 396 of 776

YAMAHA WR 426F 2002  Manuale de Empleo (in Spanish) 4 - 27
ENGCAMSHAFTS
Timing chain tensioner
1. Check:
While pressing the tensioner rod lightly
with fingers, use a thin screwdriver 1
and wind the tensioner rod up fully
clockwise.
When releasing the

Page 397 of 776

YAMAHA WR 426F 2002  Manuale de Empleo (in Spanish) ENG
4 - 27
ARBRES A CAMES
NOCKENWELLE
ÁRBOLES DE LEVAS
Steuerkettenspanner
1. Kontrollieren:
Den Steuerkettenspanner-
kopf leicht mit dem Finger
eindrücken und den Span-
ner mit einem dünnen
Schra

Page 512 of 776

YAMAHA WR 426F 2002  Manuale de Empleo (in Spanish) 4 - 85
ENGCDI MAGNETO
EC4L3000
REMOVAL POINTS
Rotor
1. Remove:
Nut (rotor) 1 
Plain washer
Use the rotor holding tool 2.
2. Remove:
Rotor 1 
Use the flywheel puller 2.
NOTE:
Install three bolts 3 o

Page 513 of 776

YAMAHA WR 426F 2002  Manuale de Empleo (in Spanish) ENG
4 - 85
MAGNETO CDI
CDI-SCHWUNGRADMAGNETZÜNDER
MAGNETO CDI
AUSBAU
Rotor
1. Demontieren:
Mutter (Rotor) 1 
Beilagscheibe
Den Rotorhalter 2 verwen-
den.
Rotorhalter
YU-1235/90890-01235
2. Demontie

Page 540 of 776

YAMAHA WR 426F 2002  Manuale de Empleo (in Spanish) 4 - 99
ENG
EC4N5000
ASSEMBLY AND INSTALLATION
Crankshaft bearing
1. Install:
Bearing 
Bearing stopper
Bolt (bearing stopper)
Screw (bearing stopper)
Screw [bearing stopper (crankshaft)] 1 
To cra

Page 541 of 776

YAMAHA WR 426F 2002  Manuale de Empleo (in Spanish) ENG
4 - 99
CARTER ET VILEBREQUIN
KURBELGEHÄUSE UND KURBELWELLE
CÁRTER Y CIGÜEÑAL
ZUSAMMENBAU UND MONTAGE
Kurbelwellenlager
1. Einbauen:
Lager
Lageranschlag
Schraube (Lageranschlag)
Schraube (L