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YAMAHA YZ250F(Y) Owner's Service Manual: Adjustments

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Pad Availabili-
Pad range
ty: 25 incre-
ments
No.
1.20
Pads are avail-
120–
mm–
able in 0.05 mm
No.
2.40
increments
240
mm
The thickness "a" of each pad is indi-
cated in hundredths of millimeters on
the pad upper surface.
d. Round off the last digit of the in-
stalled pad number to the nearest
increment.
Last digit of pad
Rounded valve
number
0, 1 or 2
4, 5 or 6
8 or 9
EXAMPLE:
Installed pad number = 148
Rounded off value = 150
Pads can only be selected in 0.05
mm increments.
e. Locate the rounded-off value and
the measured valve clearance in
the chart "PAD SELECTION TA-
BLE". The field where these two
coordinates intersect shows the
new pad number to use.
Use the new pad number only as a
guide when verifying the valve clear-
ance adjustment.
f. Install the new pads "3" and the
valve lifters "4".
• Apply the engine oil on the valve lift-
ers.
• Apply the molybdenum disulfide oil
on the valve stem ends.
• Valve lifter must turn smoothly
when rotated with a finger.
• Be careful to reinstall valve lifters
and pads in their original place.
g. Install the camshafts (exhaust
and intake).
Refer to "CAMSHAFTS" section
in the CHAPTER 4.
0
5
10
3-12
ENGINE

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This manual also for:

Yz250f 2009, Yz250fy 2009

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  • Dave May 30, 2016 02:21:
    Really good really good really goodj