Clutch YAMAHA WR 250F 2007 Owner's Guide

YAMAHA WR 250F 2007 Owner's Guide WR 250F 2007 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/52333/w960_52333-0.png YAMAHA WR 250F 2007 Owner's Guide

Page 552 of 912

YAMAHA WR 250F 2007 Owners Guide 5 - 145
ENGBALANCER
BALANCER
Extent of removal:
1 Balancer shaft drive gear
2 Balancer shaft
Extent of removal Order Part name Q’ty Remarks
BALANCER REMOVAL
Preparation for removal Primary driven ge

Page 560 of 912

YAMAHA WR 250F 2007 Owners Guide 5 - 153
ENGOIL PUMP
OIL PUMP
Extent of removal:
1 Oil pump removal
2 Oil pump disassembly
Extent of removal Order Part name Q’ty Remarks
OIL PUMP REMOVAL AND 
DISASSEMBLY
Preparation for removal Pri

Page 588 of 912

YAMAHA WR 250F 2007 Owners Guide 5 - 181
ENGKICK SHAFT AND SHIFT SHAFT
Shift shaft
1. Install:
Roller 
1 
Collar 
2 
Torsion spring 
3 
Shift shaft 
4 
NOTE:Apply the engine oil on the roller and
shift shaft.
2. Install:
Shift p

Page 592 of 912

YAMAHA WR 250F 2007 Owners Guide 5 - 185
ENGAC MAGNETO AND STARTER CLUTCH
AC MAGNETO AND STARTER CLUTCH
Extent of removal:
1 Starter clutch/wheel gear removal
2 Rotor removal
3 Pickup coil/stator removal
Extent of removal Order Part

Page 596 of 912

YAMAHA WR 250F 2007 Owners Guide 5 - 189
ENGAC MAGNETO AND STARTER CLUTCH
NOTE:Tighten the rotor nut to 65 Nm (6.5 m  kg, 47 ft  lb), loosen and retighten the rotor nut to 65 Nm (6.5 m  kg, 47 ft  lb).
Extent of removal Order Par

Page 600 of 912

YAMAHA WR 250F 2007 Owners Guide 5 - 193
ENGAC MAGNETO AND STARTER CLUTCH
EC4L3000REMOVAL POINTS
Rotor
1. Remove:
Nut (rotor) 
1 
Washer
Use the sheave holder 
2.
Sheave holder:
YS-1880-A/
90890-01701
2
1
2. Remove:
Rotor 
1 
Use

Page 602 of 912

YAMAHA WR 250F 2007 Owners Guide 5 - 195
ENGAC MAGNETO AND STARTER CLUTCH
EC4L4000INSPECTION
AC magneto
1. Inspect:
Rotor inner surface 
a 
Stator outer surface 
b 
Damage 
→ Inspect the crank-
shaft runout and crankshaft
bearing

Page 604 of 912

YAMAHA WR 250F 2007 Owners Guide 5 - 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 606 of 912

YAMAHA WR 250F 2007 Owners Guide 5 - 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 608 of 912

YAMAHA WR 250F 2007 Owners Guide 5 - 201
ENGAC MAGNETO AND STARTER CLUTCH
6. Install:
Starter clutch 
1 
To rotor 
2.
NOTE:Install the starter clutch with its
plate side upward.
While installing the starter clutch,
push in the pro