Honda 2000 XR50R Service Manual page 84

CYLINDER HEAD/VALVES
After cutting the seat, apply lapping compound to
the vlIlve face, and lap the valve using light pres-
sure.
DonolBllow
After lapping, wash 811 residual compound off the
lapping compound
cylinder head and valve.
to entef the guides.
ASSEMBLY
CYLINDER HEAD
®~
RIGHT SIDE COVEA
GASKET
~Jf~~
-\--~---qJ) ~
7-12
ROCKER ARM SHAFT
\0
ROCKER ARM
~
O-R ING
VALVE GUIDE
iQ
STEM SEAL
VALVE SPRING
SPRING RETAINER
VALVE COTTERS
Clean the cylinder head assembly with solvent and
blow through all oil passages with compressed air.
SPRING SEAT
Install the valve spring seats.
InstaU new stem seals.
Lubricate the valve stems with engine oil and insert
the va lve into the va lve guide.
To avoid damage to the stem seal. turn the valve
slowly when inserting.
Install the va lve springs with the tightly wound
coils fa cing the combustion chamber.
Install the va lve spring retainer.
RETAINER
CAMSHAFT
•
•
•