CYLINDER HEAD/VALVES
9-19
After cutting the seat, apply lapping compound to
the valve face, and lap the valve using light pres-
sure.
• Excessive lapping pressure may deform or dam-
age the seat.
• Change the angle of the lapping tool frequently
to prevent uneven seat wear.
• Lapping compound can cause damage if it enters
between the valve stem and guide.
After lapping, wash any residual compound off the
cylinder head and valve and recheck the seat con-
tact.
CYLINDER HEAD ASSEMBLY
Blow through the oil passage in the cylinder head
with compressed air.
Apply oil to the inner surface of new valve stem
seals.
Install the spring seats and new valve stem seals.
Lubricate the valve stem sliding surface with molyb-
denum oil solution.
Insert the valves into the valve guide while turning it
slowly to avoid damage to the valve stem seal.
HAND-LAPPING TOOL
STEM SEAL
VALVE COTTER
RETAINER
VALVE SPRING
SPRING SEAT
VALVE GUIDE
INTAKE VALVE
EXHAUST VALVE
COTTERS
SPRING RETAINER
VALVE SPRING
STEM SEAL
VALVE
VALVE SPRING SEAT
maxiscooter-club.ru
Содержание NSS250A Reflex 2001-2007
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Страница 368: ...FINAL REDUCTION 12 2 FINAL REDUCTION COMPONENT LOCATION NSS250A shown 24 N m 2 4 kgf m 18 lbf ft maxiscooter club ru...
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