check engine YAMAHA WR 250F 2007 User Guide

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

Page 252 of 912

YAMAHA WR 250F 2007 User Guide 3 - 41
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COOLING SYSTEM INSPECTION
1. Inspect:
Coolant level
2. Attach:
Radiator cap tester 
1 and
adapter 
2 
3. Apply the specified pressure.
NOTE:Do not apply pressure more than
specified

Page 254 of 912

YAMAHA WR 250F 2007 User Guide 3 - 43
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2. Adjust:
Clutch lever free play
NOTE:Make minute adjustment on the
lever side using the adjuster 
2.
After adjustment, check proper
operation of clutch lever. Clutch lever free pl

Page 256 of 912

YAMAHA WR 250F 2007 User Guide 3 - 45
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THROTTLE LUBRICATION
1. Remove:
Cover (throttle cable cap) 
1 
Cover (grip cap) 
2 
Throttle grip cap 
3 
2. Apply:
Lithium soap base grease
On the throttle cable end 
a.
3. Instal

Page 262 of 912

YAMAHA WR 250F 2007 User Guide 3 - 51
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ENGINE OIL LEVEL INSPECTION
1. Start the engine, warm it up for
several minutes, and then turn
off the engine and wait for five
minutes.
2. Place the machine on a level
place and hold

Page 266 of 912

YAMAHA WR 250F 2007 User Guide 3 - 55
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4. Remove:
Engine guard 
1 
Bolt (oil tank) 
2 
Washer 
3 
Oil filler cap 
4 
Oil tank drain bolt 
5 
Crankcase oil drain bolt 
6 
Oil filter element drain bolt 
7 
Drain the cr

Page 268 of 912

YAMAHA WR 250F 2007 User Guide 3 - 57
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8. Install:
O-ring 
1 
Oil strainer 
2 
Oil hose
Bolt (oil hose)
Oil hose clamp
9. Install:
Copper washer
Oil filter element drain bolt
Crankcase oil drain bolt
Oil tank drain

Page 270 of 912

YAMAHA WR 250F 2007 User Guide 3 - 59
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OIL PRESSURE INSPECTION
1. Check:
Oil pressure
Checking steps:
Slightly loosen the oil pressure
check bolt 
1.
Start the engine and keep it
idling until oil starts to seep from
the

Page 272 of 912

YAMAHA WR 250F 2007 User Guide 3 - 61
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VALVE CLEARANCE INSPECTION 
AND ADJUSTMENT
NOTE:This section is intended for those
who have basic knowledge and skill
concerning the servicing of Yamaha
motorcycles (e.g., Yamaha deale

Page 274 of 912

YAMAHA WR 250F 2007 User Guide 3 - 63
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5. Check:
Valve clearance
Out of specification 
→ Adjust. 
Valve clearance (cold):
Intake valve:
0.10 ~ 0.15 mm 
(0.0039 ~ 0.0059 in)
Exhaust valve:
0.17 ~ 0.22 mm 
(0.0067 ~ 0.0087

Page 304 of 912

YAMAHA WR 250F 2007 User Guide 3 - 93
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6. Install:
Chain joint 
1 
O-ring 
2 
Drive chain 
3 
NOTE:When installing the drive chain, apply
the lithium soap base grease on the
chain joint and O-rings.
7. Install:
Link pla
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