bolt pattern YAMAHA YZ250F 2009 Owners Manual

YAMAHA YZ250F 2009 Owners Manual YZ250F 2009 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/53949/w960_53949-0.png YAMAHA YZ250F 2009 Owners Manual

Page 86 of 190

YAMAHA YZ250F 2009  Owners Manual 4-16
CAMSHAFTS
REMOVING THE CAMSHAFT
1. Remove:
• Timing mark accessing screw "1"
• Crankshaft end accessing screw 
"2"
2. Align:
• T.D.C. mark
With align mark.
Checking steps:
a. Turn the crank

Page 87 of 190

YAMAHA YZ250F 2009  Owners Manual 4-17
CAMSHAFTS
4. Measure:
• Camshaft-to-cap clearance
Out of specification→Measure 
camshaft outside diameter.
Measurement steps:
a. Install the camshaft onto the cylin-
der head.
b. Position a s

Page 90 of 190

YAMAHA YZ250F 2009  Owners Manual 4-20
CYLINDER HEAD
CHECKING THE CYLINDER HEAD
1. Eliminate:
• Carbon deposits (from the com-
bustion chambers)
Use a rounded scraper.
Do not use a sharp instrument to 
avoid damaging or scratching:

Page 102 of 190

YAMAHA YZ250F 2009  Owners Manual 4-32
CLUTCH
Apply the engine oil on the primary 
driven gear inner circumference.
2. Install:
• Lock washer "1" 
• Nut (clutch boss) "2"
Use the clutch holding tool "3" to hold 
the clutch boss.
A

Page 106 of 190

YAMAHA YZ250F 2009  Owners Manual 4-36
OIL FILTER ELEMENT AND WATER PUMP
INSTALLING THE RIGHT 
CRANKCASE COVER
1. Install:
• Dowel pin "1"
• O-ring "2" 
•Collar "3"
•Gasket "4" 
Apply the lithium soap base grease 
on the O-rin

Page 118 of 190

YAMAHA YZ250F 2009  Owners Manual 4-48
CDI MAGNETO
REMOVING THE ROTOR
1. Remove:
• Nut (rotor) "1"
• Washer "2"
Use the rotor holding tool "3".
2. Remove:
• Rotor "1"
Use the flywheel puller "2".
When installing the flywheel pul

Page 135 of 190

YAMAHA YZ250F 2009  Owners Manual 5-4
FRONT WHEEL AND REAR WHEEL
2. Install:
•Brake disc "1"
• Bolt (brake disc) "2" 
Tighten the bolts in stage, using a 
crisscross pattern.
3. Install:
•Collar "1"
• Apply the lithium soap ba