bolt pattern YAMAHA WR 426F 2001 Owners Manual

YAMAHA WR 426F 2001 Owners Manual WR 426F 2001 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/52439/w960_52439-0.png YAMAHA WR 426F 2001 Owners Manual

Page 274 of 762

YAMAHA WR 426F 2001  Owners Manual 3 - 21
INSP
ADJ
VALVE CLEARANCE ADJUSTMENT
5. Adjust:
lValve clearance
Adjustment steps:
lLoosen the timing chain tensioner cap
bolt.
lRemove the timing chain tensioner and
camshaft caps.
NOTE:
Remove

Page 380 of 762

YAMAHA WR 426F 2001  Owners Manual 4 - 23
ENGCAMSHAFTS
REMOVAL POINTS
Camshaft
1. Remove:
lTiming plug 1 
lStraight plug 2 
2. Align:
l“I” mark
With stationary pointer.
Checking steps:
lTurn the crankshaft counterclockwise with
a w

Page 384 of 762

YAMAHA WR 426F 2001  Owners Manual 4 - 25
ENGCAMSHAFTS
4. Measure:
lCamshaft-to-cap clearance 
Out of specification ® Measure bearing
diameter (camshaft) 
Camshaft-to-cap clearance:
0.020 ~ 0.054 mm 
(0.0008 ~ 0.0021 in)
<Limit>: 0.08

Page 388 of 762

YAMAHA WR 426F 2001  Owners Manual 4 - 27
ENGCAMSHAFTS
2. Install:
lTiming chain tensioner
3. Turn:
lCrankshaft
Counterclockwise several turns
4. Check:
lRotor “I” mark
Align with the crankcase stationary
pointer.
lCamshaft match m

Page 442 of 762

YAMAHA WR 426F 2001  Owners Manual 4 - 54
ENGCLUTCH (WR426F)
7. Install:
lPush rod 2 1 
lBall 2 
lPush rod 1 3 
NOTE:
Apply the engine oil on the push rod 1, 2 and
ball.
8. Install:
lPressure plate 1 
9. Install:
lClutch spring
lBolt (

Page 456 of 762

YAMAHA WR 426F 2001  Owners Manual 4 - 61
ENGCLUTCH (WR400F)
8. Install:
lClutch spring
lBolt (clutch spring)
NOTE:
Tighten the bolts in stage, using a crisscross
pattern.
T R..8 Nm (0.8 m · kg, 5.8 ft · lb)
9. Install:
lGasket (clut

Page 466 of 762

YAMAHA WR 426F 2001  Owners Manual 4 - 66
ENG
OIL FILTER, WATER PUMP AND CRANKCASE COVER
(RIGHT)
EC4G5220
Impeller shaft
1. Install:
lImpeller shaft 1 
lPlain washer 2 
lImpeller 3 
NOTE:
lTake care so that the oil seal lip is not dam-

Page 506 of 762

YAMAHA WR 426F 2001  Owners Manual 4 - 86
ENGCDI MAGNETO
4. Connect:
lCDI magneto lead
Refer to “CABLE ROUTING DIA-
GRAM” section in the CHAPTER 2.
5. Install:
lGasket [crankcase cover (left)] 
lCrankcase cover (left) 1 
lHose hold

Page 534 of 762

YAMAHA WR 426F 2001  Owners Manual 4 - 100
ENGCRANKCASE AND CRANKSHAFT
6. Tighten:
lHose guide 1 
lClutch cable holder 2 
lBolt (crankcase)
NOTE:
Tighten the crankcase tightening bolts in
stage, using a crisscross pattern.
T R..12 Nm (

Page 554 of 762

YAMAHA WR 426F 2001  Owners Manual  
5 - 5
CHAS
 
FRONT WHEEL AND REAR WHEEL 
EC595000 
ASSEMBLY AND INSTALLATION
Front wheel 
1. Install: 
l 
Bearing (left)  
1 
  
l 
Spacer  
2 
  
l 
Bearing (right)  
3 
  
l 
Oil seal  
4 
 
NOTE:
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