2007 YAMAHA WR 250F check engine

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Page 244 of 912

YAMAHA WR 250F 2007  Owners Manual 3 - 33
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ADJ
COOLANT LEVEL INSPECTION
WARNING
Do not remove the radiator cap 1,
drain bolt and hoses when the
engine and radiator are hot. Scald-
ing hot fluid and steam may be
blown out under pres

Page 248 of 912

YAMAHA WR 250F 2007  Owners Manual 3 - 37
INSP
ADJ
8. Fill:
Radiator
Engine
To specified level.
CAUTION:
Do not mix more than one type
of ethylene glycol antifreeze
containing corrosion inhibitors
for aluminum engine.
Do not use wa

Page 252 of 912

YAMAHA WR 250F 2007  Owners Manual 3 - 41
INSP
ADJ
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  Owners Manual 3 - 43
INSP
ADJ
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  Owners Manual 3 - 45
INSP
ADJ
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  Owners Manual 3 - 51
INSP
ADJ
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  Owners Manual 3 - 55
INSP
ADJ
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  Owners Manual 3 - 57
INSP
ADJ
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