4-36
Engine Servicing
(1) SPRING SEAT (2) STEM SEAL
(3) VALVE (4) INNER SPRING
(5) OUTER SPRING (6) RETAINER
Cylinder Head Assembly
Blow out all oil passages in the cylinder head with
compressed air.
Install the spring seats and new stem seals.
Lubricate the valve stem sliding surface with molyb-
denum solution.
Insert the intake valves into the guide while turning
it slowly to avoid damage to the stem seals.
Install the valve springs with the tightly wound coils
facing the combustion chamber.
Install the spring retainers.
(1) SPRING SEAT (2) STEM SEAL
(3) VALVE (4) VALVE SPRING
(5) RETAINER
Install the spring seats and new stem seals.
Lubricate the valve stem sliding surface with molyb-
denum solution.
Insert the exhaust valves into the guide while turn-
ing it slowly to avoid damage to the stem seals.
Install the valve spring with the tightly wound coils
facing the combustion chamber.
Install the spring retainers.
(4)
(5)
(1)
(2)
(6)
(3)
(1)
(4)
(3)
(5)
(2)
(1) VALVE SPRING COMPRESSOR
(2) ATTACHMENT
Compress the valve springs with the special tools
and install the cotters.
Grease the cotters to ease installation.
Tools:
Valve spring compressor
07757-0010000
Compressor attachment
07959-KM30101
To prevent loss of tension, do not compress the
valve springs more than necessary.
(1)
(2)
Содержание NSF250R 2012
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Страница 39: ...2 21 Service Data REAR BRAKE HOSE REAR BRAKE RESERVOIR HOSE ...
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Страница 66: ...3 26 Service and Maintenance 1 OIL LINE PLUG BOLT A 1 OIL LINE PLUG BOLT B 1 1 1 1 OIL FILTER COVER BOLTS ...
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