. I * Tracing Tr'oubles
Pet~ol
top
closed
or
tap
not
turned'
Petrol'does
not
to
.reserve supply.
Out
of
petrol.
overflow when
corbu-
{
Float
and
float
needle
out
of
place.
reltor
is
tickled
..
\
Engine fails to
start
..
Petrol overflows
when
corburettor
is tiCkled
Engine
stops
suddenly
or
fires unevenly.
I,
Engine will not
p.ull
or
becomes
unduly hot
Engine stops
Float chamber
overflows
Lamps fail
fo
light
or
short
circuit. Defective
or
incor-
rect
sparking'
plug.
Contact
breaker
points oiled up, ,dirty
'or
badly
pitted.
. . .
Clutch slipping,
brakes
binding,
air
filter blocked. Air leaks (loose
car-
burettorl, jet
needle
come adrift,
float
needle
or
tickler sticking.
Wrong
sparking
plug. Silencer
closed by
carbon
deposit. Piston
rings
gummed
up, worn
out
or
broken. Mechanical fault
in
the
transmission
or
wheels.
Petrol used up with exception
.of
reserve supply
but
tap
not turned
to
reserve position.
Out
of
fuel.
High tension
lead
come. adrift. De-
fective
sparking
plug. Sticking con-
tact
brea
ker.
Punctured float. Float
needle
out
of
position. Float
needle
or
tickler
jammed. ' .
Loose
or
defective bulb. 'Faulty
earth.
Cables
loose
or
adrift.
. \
71
Sticking float needle. .
Faulty
operation
of
twist
grip
or
air
control lever. Slide
does
not
open.
Water
in
carburettor.'
(clean.
carbu(ettar
and
filter).
Jet
choked. Car-
burettbr
overflooded.
Sparking
plug
soaked.
(remove
sparking
plug,
turn off fuel,
open
twist
grip
wide,
tur."
engine over several
limes,
'replace
the
dried
sparking
plug
and
start
the
engine
with
the
fuel
supply
cut
off. Turn on the fuel only when the
engine
is
running).
Ignition not turned on. H'igh tension
lead
disconnected
or
loose. Short
circuit. Sparking plug'
oiled
up,
car-
boned
up,
or
points
bridged
by
foreign matter.
Wrong
plug.
Wrong'
plug
gap.
Defective plug (insulation
cracked). Poor
earth
connection
or
cable
worked
loose,
generator
not
operating,
battery
run down. Cut,
out
not working properly. ,
Fuel
tap
not turned t9
'''reserve''
or
running
out
of
petrol.
Vfater
in
t,he
carburettor.
Jet
needle
co'me
adnft.
Float
and
float
needle
out
of
pia
e.
Punctured float. Air leaks (carbu-
, rettor loose). Sparking plug loose
~
.
•
In
-case
of
doubt
get
in
touch with service
agent.
70
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