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and gap
setting
for
each
engine
covered by these instructions.
14. FUEL Pma' 1IA.INTENANCE
(See
Fig.77)
a. DiE assembly
(1) Disconnect
fuel lines
and re-
move pump from engine.
(2)
Loosen
nut
holding
bale
to
sediment bowl and remove bowl.
(3)
Remove screen and gasket.
(4) Remove
screws
holding
primer
to bottom of pump.
(5)
Remove
springs
and
retaining
caps.
(6) Remove spring
clips from
pin,
holding
cam
lever
to
diaphragm
plunger, and remove pin.
(7)
Remove
screws
holding
pump
cover to pump body.
Be careful not
to damage diaphragm when separating
cover from pump body.
b. Inspect ion
(1) Inspect
screen for
tears
and
holes.
(2) Inspect
diaphragm for
cracks,
breaks and punctures.
(3)
Check diaphragm return springs.
(4)
Check cam roll
and cam arm for
worn parts.
c. Replacement of Parts
(1) Replace
all
parts
'7hich are
damaged or show signs of wear.
(2) A special fuel pump
repair kit
is
available
from
the
Universal
factory.
d. Assembly
(1)
Put
diaphragm
place on pump body.
assembly
in
(2) Insert
pin securing
diaphragm
plunger to cam lever.
(3)
Replace retaining clips on pin.
(1I)
Replace
sure springs
perly seated
cover.
primer pump cover.
Be
are
in place and pro-
on
retaining plugs in
(5)
Replace pump cover. Tighten all
screws evenly and
check to be sure
diaphragm lies flat and smooth.
(6)
Replace
screen,
sediment bowl.
gasket
and
(7) Replace
fuel
pump
on
engine
and reconnect fuel lines.
Table
10
SPARK PLUG DATA
ENGINE
NUMBER
SIZE
GAP SETTING
(Champion)
Blu e Jacket
Tw
in
D-16M
18 rrun.
.025
Atomic Four
J-8
14- mm.
.035
Utility :Four
D-16M
18 rrun.
.030
Unimite four
J-8
14 mm.
.035
Super-Four
D-16M
18 rrun.
.030
Arrow
,J
-7
14 mm.
.030
Bluefin
J-7
14- rrun.
.030
Marlin
J-7
14- rrun.
.030
Tarpon
J-7
14 mm.
.030
Knight
J-7
14 rrun.
.030
Little King
UJ-6M
14- rrun.
.028
Big King
F-IIY
14 rrun.
.033
-
.038
-58-
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