2006 YAMAHA YZ250LC transmission

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Page 349 of 596

YAMAHA YZ250LC 2006  Notices Demploi (in French) 4-66
CARTER ET VILEBREQUIN
KURBELGEHÄUSE UND KURBELWELLE
CARTER E ALBERO A GOMITIENG
AUSBAUPUNKTE
Segment
1. Ausbauen:
9Schraube (Segment) 1
9Segment 2
HINWEIS:
Das Segment bis zum Anschlag ent-
gege

Page 356 of 596

YAMAHA YZ250LC 2006  Notices Demploi (in French) 4-70
CRANKCASE AND CRANKSHAFTENG
3. Install:
9O-ring 1
To crankcase (right) 2.
5. Install:
9Dowel pin 1
9Crankcase (right) 2
To crankcase (left) 3.
NOTE:
9Fit the crankcase (right) onto the crankcase

Page 358 of 596

YAMAHA YZ250LC 2006  Notices Demploi (in French) 6. Install:
9Holder (except for USA and CDN) 1
9Bolt [holder (except for USA and CDN)] 2
9Bolt (crankcase)
NOTE:
Tighten the crankcase tightening bolts in stage,
using a crisscross pattern.
4-71
CRANK

Page 360 of 596

YAMAHA YZ250LC 2006  Notices Demploi (in French) 4-72
TRANSMISSION, SHIFT CAM AND SHIFT FORKENG
Extent of removal Order Part name Q’ty Remarks
TRANSMISSION, SHIFT CAM AND
SHIFT FORK REMOVAL
Preparation for  EngineRefer to “ENGINE REMOVAL” sect

Page 362 of 596

YAMAHA YZ250LC 2006  Notices Demploi (in French) 4-73
TRANSMISSION, SHIFT CAM AND SHIFT FORKENG
EC4H4600
Bearing
1. Inspect:
9Bearing 1
Rotate inner race with a finger.
Rough spot/Seizure 
Replace. 2. Inspect:
9O-ring 1
Damage 
Replace.
3. Check:

Page 363 of 596

YAMAHA YZ250LC 2006  Notices Demploi (in French) 4-73
BOITE A VITESSES, BARILLET DE SELECTEUR ET FOURCHETTE
GETRIEBE, SCHALTNOCKE UND SCHALTGABEL
TRASMISSIONE, CAMMA DEL CAMBIO E FORCELLA DEL CAMBIOENG
AUSBAUPUNKTE
Getriebe
1. Ausbauen:
9Hauptwelle

Page 364 of 596

YAMAHA YZ250LC 2006  Notices Demploi (in French) 4-74
TRANSMISSION, SHIFT CAM AND SHIFT FORKENG
EC4H5000
ASSEMBLY AND INSTALLATION
EC4H5242
Transmission
1. Install:
95th pinion gear (21T) 1
93rd pinion gear (18T) 2
9Collar 3
94th pinion gear (22T) 4

Page 366 of 596

YAMAHA YZ250LC 2006  Notices Demploi (in French) 4-75
TRANSMISSION, SHIFT CAM AND SHIFT FORKENG
4. Install:
9Spacer 1
NOTE:
9Apply the lithium soap base grease on the oil
seal lip.
9When installing the spacer into the crankcase,
pay careful attentio