WATER PUMP
6-7
EAM30494
DISASSEMBLING THE WATER PUMP
TIP
•
Remove the oil seal when the coolant level
changes frequently more than usual, coolant
has discolored, or engine oil has become
milky.
•
Do not use the removed oil seal.
1. Remove:
•
Oil seal “1”
EAM30259
CHECKING THE WATER PUMP
1. Check:
•
Water pump housing cover
•
Impeller shaft
Cracks/damage/wear
Replace.
2. Check:
•
Bearing
Rotate the inner race with your finger.
Rough spot/seizure
Replace.
EAM30262
ASSEMBLING THE WATER PUMP
1. Install:
•
Oil seal “1”
TIP
•
Apply the lithium-soap-based grease on the oil
seal lip.
•
Install the oil seal with its manufacture’s marks
or numbers facing the crankcase cover (right).
2. Install:
•
Bearing “1”
TIP
Install the bearing by pressing its outer race par-
allel.
3. Install:
•
Impeller shaft assembly “1”
•
Pin “2”
•
Collar “3”
•
Circlip “4”
TIP
•
Take care so that the oil seal lip is not dam-
aged or the spring does not slip off its position.
•
When installing the impeller shaft, apply the
engine oil to the oil seal lip, the bearing, and the
impeller shaft.
4. Install:
•
Dowel pin “1”
•
Gasket “2”
1
1
Ne
w
1
1
1
Ne
w
4
2
3
1
E
Ne
w
Summary of Contents for WR450FN 2022
Page 5: ...EAM20093 YAMAHA MOTOR CORPORATION U S A WR MOTORCYCLE LIMITED WARRANTY...
Page 8: ......
Page 10: ......
Page 41: ...MULTI FUNCTION DISPLAY 1 29...
Page 62: ...ELECTRICAL SPECIFICATIONS 2 9 Radiator fan motor fuse 5 0 A Spare fuse 15 0 A...
Page 71: ...TIGHTENING TORQUES 2 18...
Page 72: ...CABLE ROUTING DIAGRAM 2 19 EAM20152 CABLE ROUTING DIAGRAM Frame and engine left side view...
Page 74: ...CABLE ROUTING DIAGRAM 2 21 Frame and engine right side view...
Page 76: ...CABLE ROUTING DIAGRAM 2 23 Handlebar front view...
Page 78: ...CABLE ROUTING DIAGRAM 2 25 Frame and engine top view...
Page 80: ...CABLE ROUTING DIAGRAM 2 27 Frame and battery top view...
Page 82: ...CABLE ROUTING DIAGRAM 2 29 Rear brake right side view...
Page 84: ...CABLE ROUTING DIAGRAM 2 31 Front brake front view and right side view...
Page 86: ...CABLE ROUTING DIAGRAM 2 33 Taillight top view and right side view...
Page 88: ...CABLE ROUTING DIAGRAM 2 35...
Page 205: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 5 3 1 Connecting rod 2 Oil nozzle 3 Crankshaft...
Page 207: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 5 5 1 Oil filter element 2 Oil pump 3 Oil strainer...
Page 286: ...WATER PUMP 6 9...
Page 296: ...THROTTLE BODY 7 9...
Page 299: ......
Page 300: ...IGNITION SYSTEM 8 1 EAM20142 IGNITION SYSTEM EAM30277 CIRCUIT DIAGRAM...
Page 304: ...ELECTRIC STARTING SYSTEM 8 5 EAM20143 ELECTRIC STARTING SYSTEM EAM30279 CIRCUIT DIAGRAM...
Page 310: ...CHARGING SYSTEM 8 11 EAM20144 CHARGING SYSTEM EAM30282 CIRCUIT DIAGRAM...
Page 313: ...CHARGING SYSTEM 8 14...
Page 314: ...SIGNALING SYSTEM 8 15 EAM20154 SIGNALING SYSTEM EAM30348 CIRCUIT DIAGRAM...
Page 318: ...LIGHTING SYSTEM 8 19 EAM20153 LIGHTING SYSTEM EAM30346 CIRCUIT DIAGRAM...
Page 321: ...LIGHTING SYSTEM 8 22...
Page 322: ...COOLING SYSTEM 8 23 EAM20155 COOLING SYSTEM EAM30350 CIRCUIT DIAGRAM...
Page 325: ...COOLING SYSTEM 8 26...
Page 326: ...FUEL INJECTION SYSTEM 8 27 EAM20145 FUEL INJECTION SYSTEM EAM30284 CIRCUIT DIAGRAM...
Page 351: ...FUEL INJECTION SYSTEM 8 52...
Page 352: ...FUEL PUMP SYSTEM 8 53 EAM20146 FUEL PUMP SYSTEM EAM30287 CIRCUIT DIAGRAM...
Page 386: ...SELF DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE 9 15...
Page 396: ...CHASSIS 10 9...
Page 398: ......
Page 400: ......