2001 YAMAHA YZ125LC Betriebsanleitungen (in German)

Page 249 of 558

YAMAHA YZ125LC 2001  Betriebsanleitungen (in German) 4-20
ENG
CULASSE, CYLINDRE ET PISTON
ZYLINDERKOPF, ZYLINDER UND KOLBEN
TESTA CILINDRO, CILINDRO E PISTONE
INSPEKTION
Zylinderkopf
1. Ausbauen:
9Ölkohleablagerungen
Einen abgerundeten Schaber
1verwend

Page 250 of 558

YAMAHA YZ125LC 2001  Betriebsanleitungen (in German) 4-21
ENGCYLINDER HEAD, CYLINDER AND PISTON
EC474301
Piston
1. Remove:
9Carbon deposits
From the piston crown aand ring groove
b.
2. Inspect:
9Piston wall
Score marks ÕRepair or replace.
3. Measure:
9

Page 251 of 558

YAMAHA YZ125LC 2001  Betriebsanleitungen (in German) 4-21
ENG
CULASSE, CYLINDRE ET PISTON
ZYLINDERKOPF, ZYLINDER UND KOLBEN
TESTA CILINDRO, CILINDRO E PISTONE
Kolben
1. Ausbauen:
9Ölkohleablagerungen
9Vom Kolbenboden aund aus
den Kolbenringnuten b.
2.

Page 252 of 558

YAMAHA YZ125LC 2001  Betriebsanleitungen (in German) 4-22
ENGCYLINDER HEAD, CYLINDER AND PISTON
EC474402
Piston pin and small end bearing
1. Inspect:
9Piston pin
9Small end bearing
Signs of heat discoloration ÕReplace.
2. Measure:
9Piston pin outside d

Page 253 of 558

YAMAHA YZ125LC 2001  Betriebsanleitungen (in German) 4-22
ENG
CULASSE, CYLINDRE ET PISTON
ZYLINDERKOPF, ZYLINDER UND KOLBEN
TESTA CILINDRO, CILINDRO E PISTONE
2. Misurare:
9Diametro esterno dello spinotto
Usare un micrometro 1
Fuori limiteÕSostituirlo.

Page 254 of 558

YAMAHA YZ125LC 2001  Betriebsanleitungen (in German) 4-23
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

Page 255 of 558

YAMAHA YZ125LC 2001  Betriebsanleitungen (in German) 4-23
ENG
CULASSE, CYLINDRE ET PISTON
ZYLINDERKOPF, ZYLINDER UND KOLBEN
TESTA CILINDRO, CILINDRO E PISTONE
3. Misurare:
9Gioco laterale
Usare uno spessimetro 1
Fuori limiteÕSostituire il pisto-
ne e/o

Page 256 of 558

YAMAHA YZ125LC 2001  Betriebsanleitungen (in German) 4-24
ENGCYLINDER HEAD, CYLINDER AND PISTON
EC474700
Combination of piston and cylinder
1. Check:
9Cylinder mark a
2. Check:
9Piston mark a
3. Combination:
Combine the piston and cylinder by the fol-
l