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7
CARBURETOR
The
carburetor
is
guaranteed
and
serviced
by
the
manufacturer
and his
distributors
Check
the carburetor
name
plate
for
manufacturer
It is
important
that
all
fuel connections be
kept tight
and
that dirt be
kept
out
of the
carburetor
Periodically
clean the carburetor flame
arrestor
and
empty
any
deposit
out
of the fuel
filter
sediment
bowl
The
carburetors
are
equipped
with
non
adjustable high speed jets
which
require
no
attention
The idle
adjusting
needles
should be
turned
to
the
position
where
the
engine
idles
smoothest
FUEL PUMP
The
electric fuel
pump furnished
with the
engine
is
guaranteed
and
serviced
by
the
manufacturer
The
clicking
sound
heard from the fuel
pump
is normal
and should be
present
when
ever
the
ignition
switch
is
turned
on
COOLING
SYSTEM
The
model 11G83
engine
is
equipped
with
a
dual
water
pump
having
rubber
impellers
The
two
sections
of
the
pump direct
water
equally
to
each
bank
of
cylinders insuring
proper
cooling
water
distribution
Cooling
water is
pumped
first
into the
exhaust manifolds where
it is
preheated
to
re
duce
rapid
temperature change
and
possible
condensation after
being
routed to
the
cyl
inder
block
The
cooling
water
after
traveling
the
full
length
of the exhaust
mani
folds
and
back
again
is
routed
into
the
rear
end
of the
cylinder
block
The
water
flows
up around the
cylinder
bores
and into
the
cylinder
heads
After
cooling
the valve
areas
in
the
cylinder
heads the
water
passes
out
of the front of the heads and
is
con
ducted
to the
after
end
of the
engine
through
separate overflow passages
in the
mani
folds
It leaves
the
engine traveling
through
the exhaust tube where
it
helps keep
the
exhaust tube
cool
and
helps
to
muffle
engine
noise
OVERBOARD
M
1
X
777
7
777
1
2
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i
Z
v
4
m
O
rn
M
co
4
D
I
0
S
Z
X
m
7n
A
p
v
r
OVERBOARD
E
DUAL WATER PUMP
OIL
COOLER HYD ONLY
WATER COOLING SYSTEM
MODEL 283
WATER
INLET
SCOOP a STRAINER
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