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1.
After
the
fir st 20
hour s
of
running
a)
b)
Tighten cylinder head
screws
to 32
foot pounds
torque.
Tighten fixing nuts and
screws for
the
main
parts
as follows:
Screws
and nuts
for
crankcase (M8
thread)
=
18
foot
pounds
-
Screws and nuts
for
crankcase (MIO thread)
32
foot
pounds
-
Nuts
for
intake manifold
=
18
foot pounds
- Nuts
for
exhau
st
pipe
=
18 foot pounds
-
Nuts
f
o
r
air shroud
=
18
foot
pounds
- Nuts
for
carburetor
=
18 foot
pounds
- Nuts for cylinder
=
32 foot pound s
-
Nuts
and screws
for
starter
generator
= 18
foot po.unds
c)
Check
the tension of
the starter
generator belt and if necessary
adjust it.
2.
Every
100 hours of
running
a)
Check the
spark
plugs.
The
spark plug
gap
should
be twenty
thousandths
(.020)
of an inch,
and
plug.s
should be kept clean both inside
and out.
If the porcelain
insulator
is cracked,
replace
with
a new plug
of correct heat
range, like BOSCH
M225-Tl,
or equal.
The
thread
is 18 millimeters.
When
mounting either old
or new plug thoroughly
clean threads in cylinder heads before installation.
b)
Clean
the blower
screen
if
dirty.
c)
Adjust the
starter generator belt if it is too unbended.
3.
Every 200 hours of
running
a)
Repeat procedures
as mentioned under paragraph 2, a, b, c, d,
(Every
100
hours of running).
b)
Breaker points adjustments
Magnetos
are properly adjusted and timed
before leaving the
factory.
The
breaker point
gap of BOSCH type
0204402001
should have an opening of .015
inch at
full separation.
If
the spark become s
weak
afte
r
continued operation,
it
maybe
necessary to re-adjust
the breaker points.
To
do
this first
remove
the cover on the
magneto.
c
)
Check
carbon brush.
Check dynamo if it is worn
out
and replace if neces sary.
d)
Removing of
the oil carbon
Carbon
oil
is set
up
at
the
places as follows
-
due to the burning of the added
lubrication
oil in
the fueL
-
in the
cylinder
head
-
on
the piston head
-
in the exhaust pipe
- in the transfer part
-
in the exhaust
silencer
D)
TROUBLES CAUSES AND REMEDIES
1.
Three prime
requisite s
are
es sential
to
starting and maintaining satisfactory
operation of
gasoline engines.
They are:
-
a proper fuel mixture in the
cylinder
-
good compre
s sion
in the
cylinder
-
good spark, prope rly timed, to
ignite the mixture
If
all
three of the
se
conditions do not
exist,
the
engine cannot be started
.
As a guide to locating
any
difficulties
which might arise,
the
following cause
s
are listed under the three
headings: Fuel
Mixture,
Compression and Ignition.
-
24
-
)
)
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