Yamaha TTR250L Service Manual page 165

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ENGINE ASSEMBLY AND ADJUSTMENT
4.Install:
Valve cotters 1
NOTE:
Install the valve cotters while compressing
the valve spring with the valve spring com-
pressor 2.
Valve spring compressor:
P/N. YM-04019
5.Secure the valve cotters onto the valve
stem by tapping lightly with a piece of
wood.
NOTE:
Do not hit so much as to damage the valve.
6.Apply:
Molybdenum disulfide oil
(onto outer surface of valve lifters and
pads)
7.Install:
Valve lifters 1
Pads 2
NOTE:
When rotated with a finger, the valve lifter
should move smoothly.
Identify each lifter and pad position very
carefully so that they can be reinstalled in
their original place.
8.Apply:
Molybdenum disulfide oil
(onto camshaft journal)
4 - 60
ENG

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