2009 YAMAHA WR 250F maintenance

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Page 33 of 224

YAMAHA WR 250F 2009  Owners Manual 2-8
MAINTENANCE SPECIFICATIONS
Shifter:Shifter type Cam drum and guide bar----
Guide bar bending limit ----0.05 mm (0.002 
in)
Kickstarter: Type Kick and ratchet type----
Carburetor: USA, CDN, ZA, 
AU

Page 34 of 224

YAMAHA WR 250F 2009  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 leng

Page 35 of 224

YAMAHA WR 250F 2009  Owners Manual 2-10
MAINTENANCE SPECIFICATIONS
ELECTRICALDrive chain:
Type/manufacturer DID520VM/DAIDO----
Number of links 113 links + joint----
Chain slack 48–58 mm (1.9–2.3 in)----
Chain length (15 links) ----

Page 36 of 224

YAMAHA WR 250F 2009  Owners Manual 2-11
MAINTENANCE SPECIFICATIONS
Charging system:System type AC magneto----
Model (stator)/manufacturer 5UM 30/YAMAHA ----
Normal output 14 V/120 W at 5,000 r/min----
Charging coil resistance (color) 0

Page 54 of 224

YAMAHA WR 250F 2009  Owners Manual 3-1
PERIODIC MAINTENANCE CHART FOR THE EMISSIONCONTROL SYSTEM (For Canada)
REGULAR INSPECTION AND ADJUSTMENTS
PERIODIC MAINTENANCE CHART FOR THE EMISSION CONTROL SYSTEM (For Canada)
• From 4,200 mi

Page 55 of 224

YAMAHA WR 250F 2009  Owners Manual 3-2
GENERAL MAINTENANCE AND LUBRICATION CHART (ForCanada)
GENERAL MAINTENANCE AND LUBRICATION CHART (For Canada)
No.ITEM CHECKS AND MAINTENANCE JOBS INITIAL
ODOMETER 
READINGS600 mi (1,000 
km) or 1

Page 56 of 224

YAMAHA WR 250F 2009  Owners Manual 3-3
MAINTENANCE INTERVALS FOR COMPETITION USE
• The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
• Hydraulic brake service• After disassembling the b

Page 57 of 224

YAMAHA WR 250F 2009  Owners Manual 3-4
MAINTENANCE INTERVALS FOR COMPETITION USE
VALVE LIFTERSInspect ●Check for scratches and wear.
Replace ●
CAMSHAFTS Inspect the camshaft surface.
Inspect ●Inspect the decompression system.
Rep
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