Merc-O-Tronics 98 - BREAKER POINT TEST; Breaker Point Test Procedure

BREAKER
POINT TEST
SMALL
RED
TEST
LEAD
CONDENSER
REMOVE'
CARDBOARD
FROM
BETWEEN
BREAKER
POINTS.
SINGLE
RED
LEAD
NOT
USED
CONDENSER
SMALL
BLACK
TEST
LEAD
Figure l6
TESTING FOR
HIGH RESISTANCE
IN PRIMARY CIRCUIT
1.
T\rrn selector switch to
position
No.
2
Distributor
Resistance.
2.
CIip small
red and black test
leads together.
3.
Turn meter
adjustment
knob
for
scale No.
2 until
meter
pointer
lines
up
with set
position
on left sidb of
'(OK"
block
on scale
No. 2.
4,
Unclip small
red and
black test
leads.
5.
Connect small
red test
lead to breaker
point
terminal.
6.
Connect small
black test
lead
to stator
plate
or any
part
of engine
per
illustration No.
16.
7.
T\rrn crankshaft
until cam allows
breaker
points
to
close.
8.
The meter
pointer
must
return
in the
((OK"
block.
9.
If
the
meter
pointer
is in
the high resistance
band'"this
indicates
that
there
is
foreign matter
between breaker
points.
10.
See
note.
11.
Breaker assemblies
not
meeting
this
test
should
be
replaced.
NOTE: Although breaker
points
are made
of
non-corrosive
metal a
current
resisting tough
film may
form
aJter
the engine
stands
for
a
period
of
time, especially
if
stored
in a
damp
place.
This
film
will cause
hard
starting
of
the
engine.
By
running
a
piece
of stiff
paper
(such
as
a
business card)
Sghareen
the
points
under
tension several
times, the
film
will
wear and
dirt
or
oil will
be removed
from between
the breaker
points.
After cleaning
points
in
the
above
manner,
the meter
hand
should
be in
the
"OK"
block. If
not,
replace breaker
points.
l5