2008 YAMAHA WR 250F oil pressure

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Page 27 of 224

YAMAHA WR 250F 2008  Owners Manual 1-17
CLEANING AND STORAGE
CLEANING AND STORAGE
CLEANING
Frequent cleaning of your machine 
will enhance its appearance, maintain 
good overall performance, and ex-
tend the life of many components.
1.

Page 29 of 224

YAMAHA WR 250F 2008  Owners Manual 2-2
GENERAL SPECIFICATIONS
Oil capacity:Engine oilPeriodic oil change 1.1 L (0.97 Imp qt, 1.16 US qt)
With oil filter replacement 1.2 L (1.06 Imp qt, 1.27 US qt)
Total amount 1.4 L (1.23 Imp qt, 1.48

Page 35 of 224

YAMAHA WR 250F 2008  Owners Manual 2-8
MAINTENANCE SPECIFICATIONS
Carburetor:USA, CDN, ZA, 
AUS, NZ EUROPE
Type/manufacturer FCR-MX37/KEIHIN← ----
I. D. mark 5UME E05UML L0----
Main jet (M.J) #170#160----
Main air jet (M.A.J) #115←

Page 36 of 224

YAMAHA WR 250F 2008  Owners Manual 2-9
MAINTENANCE SPECIFICATIONS
CHASSISItem Standard Limit
Steering system: Steering bearing type Taper roller bearing ----
Front suspension: Front fork travel 300 mm (11.8 in) ----
Fork spring free le

Page 39 of 224

YAMAHA WR 250F 2008  Owners Manual 2-12
TIGHTENING TORQUES
Cylinder head (stud bolt)M8 × 1.25 1 15 1.5 11
Cylinder head (bolt) M9 × 1.25 4 38 3.8 27
Cylinder head (nut) M6 × 1.0 2 10 1.0 7.2
Cylinder head cover M6 × 1.0 2 10 1.0 7.

Page 59 of 224

YAMAHA WR 250F 2008  Owners Manual 3-4
MAINTENANCE INTERVALS
TIRE, WHEELSInspect air pressure, wheel run-
out, tire wear and spoke loose-
ness ●●
Retighten sprocket bolt ●●
Inspect bearings ●
Replace bearings ●
Lubricate

Page 60 of 224

YAMAHA WR 250F 2008  Owners Manual 3-5
PRE-OPERATION INSPECTION AND MAINTENANCE
PRE-OPERATION INSPECTION AND MAINTENANCE
Before riding for break-in operation or practice, make sure the machine is in good operating condition.
Before usi

Page 64 of 224

YAMAHA WR 250F 2008  Owners Manual 3-9
ENGINE
CHECKING THE SILENCER AND 
EXHAUST PIPE
1. Inspect:• Gasket "1"
Damage →Replace.
INSTALLING THE SILENCER AND 
EXHAUST PIPE
1. Install: • Gasket 
• Exhaust pipe "1"
• Nut (exhaust
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