Filter
Top Products
5)
Remove the flywheel without turning crankshaft at all.
6)
Loosen the lock screw
of
the breaker point support plate
so
that the breaker point can be rotated.
7)
By rotating the support plate of the breaker point, find the exact point when the buzzer within timing
tester starts ringing from being silent. (See Figs.
43
and
44.)
8)
Put the flywheel back and check by rotating flywheel slowly. If the buzzer in timing tester starts ring-
ing when line mark on the flywheel is in the line with line mark on the crankcase. When the line marks
are in alignment, the timing is correct.
9)
If the timing mark lines are not in alignment, then readjust the point opening according
to
the
BREAK-
ER
POINT ADJUSTMENT,
by removing the flywheel and repeat the checking procedure
3)
through
5).
10) After completing the timing adjustment remount the blower housing and connect the coil primary lead
to the stop switch.
,,
6-4
MAGNETO TROUBLESHOOTING
When the engine does not start or starts with difficulty, or when its operation is unstable, the following tests
will clarify if they are caused by a defect in the magneto.
1)
Check igntion cable for possible corrosion, broken, worn insulator or loose connection.
2)
Check the sparking as described later in this section.
3)
Check if the breaker points require cleaning,
or
adjusting or not. If the points are badly corroded or
pitted, condenser may have
to
be replaced too.
Refer to “BREAKER
POINT
ADJUSTMENT.”
4)
If no spark takes place, replace ignition coil.
“SPARK
TESTING
Remove spark plug from cylinder head and place it on blower housing, with the ignition cable connected
to it.
Crank the engine serveral times by starting pulley and observe the spark
in
the spark gap
of
spark plug.
If
the spark is strong, the ignition system can be eliminated as the source
of
trouble.
if the spark is weak or there is no spark at all, repeat the checks according
to
the procedures 1) through
3)
above.
The correct electrode gap is
0.6
-
0.7
mm. (Refer
to
section
”13.
CHECKS
and
CORRECTIONS.”)
,-
6-5
SOLID STATE
IGNITION
The following solid state ignition systems are available as optional part
of
EY 15V; and
to
EY20V engine
these systems are equipped as standard parts.
T.I.C.
(TRANSISTOR IGNITION CIRCUIT)
On the outside
of
the flywheel, an ignition coil is installed, which
is
so-called outer coil type.
This
is equipped
to the standard type engine, and the excitor coil (primary-excitation) is available as an optional part. (The
flywheel is for common use.) (See Fig.
52.)
-
30
-