Yamaha MX 1972 - Page 62

7. Checking
the
Cylinder
and
Piston
Rings for
contact
After
the
first
1 U miles
of
operation,
the
contact
between
the
cy-
1 i nder and
piston
rings should
be
checked.
If
necessary, any
irregularity
should
be
corrected.
1.
Remove
the
muffler.
2. Remove
the
cylinder
head bolts.
3. Remove the
cylinder
head.
4. Remove the delivery pipe.
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