YAMAHA YZ250LC 2004 Owners Manual

YAMAHA YZ250LC 2004 Owners Manual YZ250LC 2004 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/53966/w960_53966-0.png YAMAHA YZ250LC 2004 Owners Manual
Trending: wheel, fuel tank capacity, checking oil, engine oil, steering wheel, brake pads, warning

Page 251 of 588

YAMAHA YZ250LC 2004  Owners Manual 4-19
CULASSE, CYLINDRE ET PISTON
ZYLINDERKOPF, ZYLINDER UND KOLBEN
TESTA CILINDRO, CILINDRO E PISTONEENG
Etendue de dépose Ordre Nom de pièce Q’té Remarques
DEPOSE DU PISTON ET CLAPET DE
PUISSANC

Page 252 of 588

YAMAHA YZ250LC 2004  Owners Manual 4-20
ENGCYLINDER HEAD, CYLINDER AND PISTON
EC473000
REMOVAL POINTS
EC473220
Push rod
1. Remove:
9Bolt (push rod) 1
9Push rod 2
NOTE:
Insert the set pin 3included in owner’s tool kit
to remove the bo

Page 253 of 588

YAMAHA YZ250LC 2004  Owners Manual 4-20
CULASSE, CYLINDRE ET PISTON
ZYLINDERKOPF, ZYLINDER UND KOLBEN
TESTA CILINDRO, CILINDRO E PISTONEENG
POINTS DE DEPOSE
Champignon de débrayage
1. Déposer:
9Boulon (champignon de débra-
yage) 1
9

Page 254 of 588

YAMAHA YZ250LC 2004  Owners Manual 4-21
ENGCYLINDER HEAD, CYLINDER AND PISTON
EC474000
INSPECTION
EC474102
Cylinder head
1. Eliminate:
9Carbon deposits
Use a rounded scraper 1.
NOTE:
Take care to avoid damaging the spark plug
threads.

Page 255 of 588

YAMAHA YZ250LC 2004  Owners Manual 4-21
CULASSE, CYLINDRE ET PISTON
ZYLINDERKOPF, ZYLINDER UND KOLBEN
TESTA CILINDRO, CILINDRO E PISTONEENG
VERIFICATION
Culasse
1. Éliminer:
9Depôts de carbone
Utiliser le grattoir arrondi 1.
N.B.:
Pr

Page 256 of 588

YAMAHA YZ250LC 2004  Owners Manual 4-22
ENGCYLINDER HEAD, CYLINDER AND PISTON
EC474201
Cylinder
1. Eliminate:
9Carbon deposits
Use a rounded scraper 1.
NOTE:
Do not use a sharp instrument. Avoid scratching
the aluminum.
2. Inspect:
9Cy

Page 257 of 588

YAMAHA YZ250LC 2004  Owners Manual 4-22
CULASSE, CYLINDRE ET PISTON
ZYLINDERKOPF, ZYLINDER UND KOLBEN
TESTA CILINDRO, CILINDRO E PISTONEENG
Cylindre
1. Éliminer:
9Dépôts du carbone
Utiliser le grattoir arrondi 1.
N.B.:
Eviter d’ut

Page 258 of 588

YAMAHA YZ250LC 2004  Owners Manual 4-23
ENGCYLINDER HEAD, CYLINDER AND PISTON
3. Measure:
9Piston skirt diameter
Use micrometer 1.
Measure the specific distance bfrom the
stepped surface aon inside of the piston.
Out of specification 

Page 259 of 588

YAMAHA YZ250LC 2004  Owners Manual 4-23
CULASSE, CYLINDRE ET PISTON
ZYLINDERKOPF, ZYLINDER UND KOLBEN
TESTA CILINDRO, CILINDRO E PISTONEENG
Axe de piston et coussinet de pied de
bielle
1. Examiner:
9Axe de piston
9Coussinet de pied de

Page 260 of 588

YAMAHA YZ250LC 2004  Owners Manual 4-24
ENGCYLINDER HEAD, CYLINDER AND PISTON
EC474502
Piston ring
1. Install:
9Piston ring
Into the cylinder.
Push the ring with the piston crown.
2. Measure:
9End gap
Use a thickness gauge 1.
Out of li
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