Yamaha MX 1972 - Page 47

2
. Engine
Stop
Button
This safety device
is
used when
your
machine
is
upset
or
when
you
need
to
stop the engine
quickly.
L Engine stop
button
I
3.
How
to
Start
the
Engine
(When
the
engine
is
cold)
a.
Replace
the
spark plug
with
a
hotter
type
( B-7ES
or
BES)
for
warming up.
b.
Open the fuel cock.
c.
Push
down
the starter lever, and
fully
close
the
throttle
valve.
Then,
kick
the
kick crank hard.
d.
After
starting
the
engine, keep
it
run
for
a few minutes
for
warm-
ing up. Then, replace
the
spark plug
with
the regular type.
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