If there
is no fuel discharged
from
the
line, the
check
valve
in the
squeeze
bulb
may be defective,
or there
may be a break
or obstruction
in the fuel line.
If there
is a good fuel flow, then crank
the
engine.
If the
fuel pump is operating
properly,
a healthy
I
stream
of fuel
should
pulse out of the line.
Continue
cranking
the engine and catch-
ing the fuel for about 15 pulses to determine
if the amount
of fuel decreases
with each
pulse or maintains
a constant
amount.
A
decrease
in the
discharge
indicates
a re-
striction
in the
line.
If the
fuel
line
is
plugged, the fuel stream
may stop.
If there
is fuel in the fuel tank but no fuel flows out
the fuel line while the engine is being crank-
ed, the
problem
may be in one of several
areas:
1-
Plugged fuel line from the fuel pump
to the carburetor.
2-
Defective
a-ring
in fuel line connec-
tor into the fuel tank.
3- Defective
O-ring in fuel line connec-
tor into the engine.
4- Defective
fuel pump.
5- The line from
the
fuel tank
to the
fuel pump may be plugged; the line may be
leaking
air;
or the
squeeze
bulb may
be
defective.
6-
Defective
fuel tank.
7-
If
the
engine
does
not
start
even
though there
is adequate
fuel flow from the
fuel line, the fuel inlet needle valve and the
seat
may be gummed together
and prevent
adequate
fuel flow.
Fuel
line
connection
at
the
carburetor
on a 9.5
horsepower
engine.
TROUBLESHOOTING
4-7
Fuel
connector
with
the
O-ring
visible.
These 0-
rings have
a
relative
short
life and may
be
the source
of
fuel
problems.
The a-rings
should
be
replaced
on
a
regular
basis.
FUEL
LINE
TEST
On
most
installations,
the
fuel
line
is
provided
with quick-disconnect
fittings
at
the
tank
and
at
the
engine.
If there
is
reason
to
believe
the
problem
is at
the
quick-disconnects,
the hose ends can be re-
placed
as an assembly,
or new a-rings
may
be
installed.
A supply
of
new a-rings
Parts
in
a
squeeze bulb replacement
kit
include
the
SQueeze bulb,
two
check valves,
and two
tie
straps
to
secure the bulb in the line.
Содержание 4906B 4HP 1969
Страница 5: ......
Страница 85: ...3 44 POWERHEAD EXHAUST COVER I LEVER Exploded drawing of a 5 5 hp powerhead 1956 60 principle parts identified...
Страница 87: ...3 46 POWERHEAD Exploded drawing of a 7 5 hp powerhead 1956 58 with principle parts identified...
Страница 88: ...CYLINDER BLOCK 3 47 HEAD GASKET RING...
Страница 89: ...3 48 POWERHEAD HEAD BYPASS COVER Exploded drawing of a 10 hp powerhead 1956 63 with principle parts identified...
Страница 90: ...CYLINDER BLOCK 3 49 THERMOSTAT EXHAUST COVER The...
Страница 137: ...4 46 FUEL LEVER AND LOW SPEED...
Страница 153: ...4 62 FUEL Exploded view of a pressure tyoe fuel tank with major parts identified...
Страница 157: ...4 66 fUEL...
Страница 177: ...5 18 IGNITION FLYWHEEL Exploded drawing of a typical magneto system Only one coil and set of points is shown...
Страница 271: ...8 12 LOWER UNIT PROPELLER Exploded drawing of the Weedless lower unit gear case with major parts identified...
Страница 285: ...8 26 LOWER UNIT Exploded drawing of a lower unit with a window for access to the shift connector...
Страница 412: ...A 16 APPENDIX Wire Identification 33 hp with Generator 1965 67...
Страница 413: ...APPENDIX A 17 o C...
Страница 414: ...Wire Identification 33 hp with Generator 1969 70...
Страница 415: ...APPENDIX A 19 Wire Identification 35 hp 1957 59...
Страница 416: ...A 20 APPENDIX Wire Identification 40 hp Standard Shift with Generator 1960 66...
Страница 417: ...APPENDIX A 21 UJ cc b Wire Identification 40 hp Standard Shift with Generator 1967 68...
Страница 418: ...A 22 APPENDIX ee I U Vl Z Z o U I I Wire Identification 40 hp Standard Shift With Generator 1969 10...
Страница 419: ...APPENDIX Wire Identification 40 hp Electric Shift with Generator 1961 66 A 23...
Страница 420: ...A 24 APPENDIX C 00 Wire Identification 40 hp Electric Shift with Generator 1967 68...
Страница 421: ...Wire Identification 40 hp Electric Shift with Generator 1969 70...
Страница 422: ...NOTES NUMBERS...