Yamaha Wr250r 2008 Manual

 
LUBRICATION SYSTEM CHART AND DIAGRAMS 
2-26 
1. Camshaft
2.  Timing chain tensioner
3. Piston cooler
4. Oil filter
5. Main axle
6. Delivery pipe
7. Drive axle
8. Oil pump
9. Relief valve
10. Oil strainer
11. Oil pan 

 
LUBRICATION SYSTEM CHART AND DIAGRAMS 
2-27 

 
LUBRICATION SYSTEM CHART AND DIAGRAMS 
2-28 
1.  Oil pump assembly
2. Relief valve
3. Main axle
4. Delivery pipe
5. Drive axle
6. Crankshaft
7. Oil filter
8. Oil strainer 

 
COOLING SYSTEM DIAGRAMS 
2-29 
EAS20420 
COOLING SYSTEM DIAGRAMS
8
5 1
2
3
4
6
7
9 

 
COOLING SYSTEM DIAGRAMS 
2-30 
1. Radiator cap
2. Radiator
3.  Radiator inlet hose
4.  Radiator outlet hose
5.  Recovery tank hose
6. Cap
7.  Side cover stay
8.  Water pump housing cover
9. Impeller shaft 

 
CABLE ROUTING 
2-31 
EAS20430 
CABLE ROUTING 

 
CABLE ROUTING 
2-32 
1.  Starter motor lead
2.  Coolant temperature sensor lead
3.  Speed sensor lead
4.  Negative battery lead
5. Starter relay
6.  Starter relay probe
7.  Starter relay lead
8.  Intake solenoid lead
9. ECU lead
10. Headlight relay
11.  Turn signal relay
12.  Radiator fan motor relay
13. Relay unit
14.  Positive battery lead
15.  EXUP servo motor lead
16.  Sidestand switch lead
17.  AC magneto lead
18.  Neutral switch lead
19.  Recovery tank hose
20. Rectifier/regulator
21. Fuse box
22....

 
CABLE ROUTING 
2-33 

 
CABLE ROUTING 
2-34 
1. Clamp
2.  Throttle position sensor lead
3.  Fan motor lead
A.  Fasten the breather hose using a clamp.
B.  Fasten the throttle position sensor connector 
cover and the rear brake switch lead using a 
cable tie.
C.  Insert the fan motor lead into the concave sec-
tion of guide air, and pass them backward 
through the hole.
D.  After connecting the main switch lead, front 
brake switch lead, and handlebar right lead, 
and place their connectors in the cover.
E.  Fasten the main...

 
CABLE ROUTING 
2-35