coolant YAMAHA WR 250F 2006 User Guide

YAMAHA WR 250F 2006 User Guide WR 250F 2006 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/52334/w960_52334-0.png YAMAHA WR 250F 2006 User Guide

Page 209 of 900

YAMAHA WR 250F 2006 User Guide 3 - 2
INSP
ADJ
MAINTENANCE INTERVALS
ROTOR NUT
Retighten
EXHAUST PIPE, SILENCER, 
PROTECTOR
Inspect and retighten
Clean
Replace* Whichever comes first
*SPARK ARRESTER
Clean
(Every 
six 
months)
CRANK

Page 223 of 900

YAMAHA WR 250F 2006 User Guide 3 - 16
INSP
ADJ
PRE-OPERATION INSPECTION AND MAINTENANCE
EC320000
PRE-OPERATION INSPECTION AND MAINTENANCE
Before riding for break-in operation, practice or a race, make sure the machine is in good op

Page 228 of 900

YAMAHA WR 250F 2006 User Guide 3 - 21
INSP
ADJ
EC350000
ENGINE
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
blow

Page 230 of 900

YAMAHA WR 250F 2006 User Guide 3 - 23
INSP
ADJ
COOLANT REPLACEMENT
WARNING
Do not remove the radiator cap
when the engine is hot.
CAUTION:
Take care so that coolant does not
splash on painted surfaces. If it
splashes, wash it away

Page 232 of 900

YAMAHA WR 250F 2006 User Guide 3 - 25
INSP
ADJ
9. 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 234 of 900

YAMAHA WR 250F 2006 User Guide 3 - 27
INSP
ADJ
12. Install:
Coolant reservoir cap
13. Start the engine and let it warm
up for several minutes.
14. Turn off the engine and inspect
the coolant level.
Refer to “COOLANT LEVEL
INSPEC

Page 236 of 900

YAMAHA WR 250F 2006 User Guide 3 - 29
INSP
ADJ
3. Inspect:
Pressure
Impossible to maintain the
specified pressure for 10 sec-
onds 
→ Replace.
COOLING SYSTEM INSPECTION
1. Inspect:
Coolant level
2. Attach:
Radiator cap tester

Page 256 of 900

YAMAHA WR 250F 2006 User Guide 3 - 49
INSP
ADJ
VALVE CLEARANCE INSPECTION 
AND ADJUSTMENT
NOTE:The valve clearance should be
adjusted when the engine is cool to
the touch.
The piston must be at Top Dead
Center (T.D.C.) on compres

Page 354 of 900

YAMAHA WR 250F 2006 User Guide 4 - 13
ENGRADIATOR
EC450001
RADIATOR
Extent of removal:
1 Radiator removal
Extent of removal Order Part name Q’ty Remarks
RADIATOR REMOVAL
Preparation for removal Drain the coolant. Refer to “COOL

Page 360 of 900

YAMAHA WR 250F 2006 User Guide 4 - 19
ENGRADIATOR
3. Install:
Right radiator 
1 
Bolt (right radiator) 
2 
Radiator hose 3 
3 
Refer to “CABLE ROUTING
DIAGRAM” section in the
CHAPTER 2.
T R..10 Nm (1.0 m · kg, 7.2 ft · lb)
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