Yamaha MX 1972 - Page 65

1
nstal
lat
ion
,.
Oil the small end bearings,
cylinder,
etc.
2.
Install
the
piston
with
the
arrow
mark
pointing
to
the
exhaust
port.
(Cover
the
piston
pin
drop
it.)
clip
with
a
cloth
so
that
you
will
not
3. Install
the
piston
rings,
Make
sure
that
the
ring
locating
pin
1s
between
the
ends
of
the
ring.
4.
Tighten
the
cylinder
head
bolt
nuts
in
a
cross-pattern
and
in
separate
steps.
Tightening
torque
must
be correct.
Note:
Each
time
the
cylinder
is removed,
use
a
new
cylinder
gasket
and
cylinder
head gasket.
Other
gaskets
should
be
thoroughly
cleaned.
5.
Removing
the
Carbon
from
Cylinder
Head,
Cylinder
and
Piston
The
cylinder
should
be disassembled in
the
ma -
nner,as specified above, and
the
carbon.
remove
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