2004 YAMAHA WR 250F oil

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Page 522 of 864

YAMAHA WR 250F 2004  Owners Manual 4 - 197
ENGAC MAGNETO AND STARTER CLUTCH
3. Check:
Starter clutch operation
Install the starter clutch drive
gear 
1 onto the starter clutch
2 and hold the starter clutch.
When turning the starter

Page 524 of 864

YAMAHA WR 250F 2004  Owners Manual 4 - 199
ENGAC MAGNETO AND STARTER CLUTCH
2. Install:
Holder 
1 
Bolt 
2 
CAUTION:
Pass the pickup coil lead and
charging coil lead under the
holder while taking care not to
allow these leads to get

Page 528 of 864

YAMAHA WR 250F 2004  Owners Manual 4 - 203
ENGAC MAGNETO AND STARTER CLUTCH
9. Install:
Washer (rotor)
Nut (rotor) 
1 
Use the sheave holder 
2.
NOTE:Tighten the rotor nut to 65 Nm
(6.5 m·kg, 47 ft·lb), loosen and
retighten the rot

Page 532 of 864

YAMAHA WR 250F 2004  Owners Manual 4 - 207
ENGENGINE REMOVAL
EC4M0000
ENGINE REMOVAL
Extent of removal Order Part name Q’ty Remarks
ENGINE REMOVAL
Preparation for removal Hold the machine by placing the suitable 
stand under the fram

Page 536 of 864

YAMAHA WR 250F 2004  Owners Manual 4 - 211
ENGENGINE REMOVAL
Extent of removal:
1 Engine removal
Extent of removal Order Part name Q’ty Remarks
Ignition coil
Disconnect the AC magneto lead.
Starter motor lead Disconnect at the starte

Page 544 of 864

YAMAHA WR 250F 2004  Owners Manual 4 - 219
ENGENGINE REMOVAL
2. Install:
Lock washer 
1 
Nut (drive sprocket) 
2 
NOTE:Tighten the nut while applying the
rear brake.
T R..75 Nm (7.5 m · kg, 54 ft · lb)
New
3. Bend the lock washer t

Page 546 of 864

YAMAHA WR 250F 2004  Owners Manual 4 - 221
ENGCRANKCASE AND CRANKSHAFT
CRANKCASE AND CRANKSHAFT
Extent of removal:
1 Crankcase separation
2 Crankshaft removal
Extent of removal Order Part name Q’ty Remarks
CRANKCASE AND CRANKSHAFT 
R

Page 550 of 864

YAMAHA WR 250F 2004  Owners Manual 4 - 225
ENGCRANKCASE AND CRANKSHAFT
Extent of removal Order Part name Q’ty Remarks
4 Bolt [L = 45 mm (1.77 in)] 6
Refer to “REMOVAL POINTS”. 5 Bolt [L = 55 mm (2.17 in)] 1
6 Bolt [L = 70 mm (2.7