Motobecane 40 - Engine Troubleshooting

:
MOTOBECANE
TROUBLE
SHOOTING
GUIDE
The
following
guide
is
designed
to reduce
the
amount
of
time spent
trouble
shooting
g
service
prob'lem.
When
reading
through
the trouble
ihooting
guide,
some
of the
steps
will
be
referenced
with
the symbol
(6V).
This
notalion
re-
fers
to machines
manufactured
by Motobecane
prior
to January
1, L978,
and
which
are equipped
with
a
six
{6)
volt
lightino
system.
Su-bsequently,
all
Motobecane
Mopeds
manufactured
for
the
United
States
after January
1, 1978,
are
equipped
with
a
tZ volt Iighting
system.
HELPFUL
HINTS:
L.
When
trouble
shooting
electr.ical
components, the
quickest
and
easiest
method
is
substitution.
A)Makesurethatthepartbeingusedinthesubsti-
tution
is
known
to be
good.
B)
When
a
parts
substitution
is
made
and the
problem
is
not
solved,
leave
the newly
substituted
part
in
the
system
until
the
problem
is
found.
Then,
back
track
one
component
at a time. This
method
will
enable
you
to more
effectively
trouble shoot
a
machi
ne
whi
ch may
have
mul
ti
p'le probl
ems
.
ENG
I NE
ENGINE
t^llLL
NOT START
A)
Check for
spark
at spark
plug.
B)
Check for
flow
restrictions
in
the fuel
system.
C)
Check eng'ine
compression
by
turning
the
clutch
drum by
hand
with
the spark
plug
installed.
D)
check
to
see if
the
engine
stop
switch is in
the
"run"
posi-
tion.
SPARK
Faulty
spark
plug
Faulty
radio
suppressor
(spark
plug
cover)
Faulty
high
tension
coil
Faulty
ignition
points
and
condenser
Ignition
points
not
opening
Grounding
wire inside
the
magneto
Magneto
wiring
harness
burnt
or
broken
behind
the
engine
Poor
magnetism
present
in
rotor
Faulty
exciter
coil inside
magneto
Black
wire
from
magneto
broken
or disconnected
*(6V)
II.
NO
A)
B
c
D
E
F
G
H
I
J
R0
80
J