Filter
Top Products
For timing adjustment, the following alighment marks are provided:
D
type:
D
mark at lower left crankcase (see
Fig.
7-3-1)
M
mark and slit on flywheel circumference
B
type:
B
mark at upper left crankcase
M
mark and slit on flywheel circumference.
FLYWHEEL
e-
Fig.
7-3-
I
Fig.
7-3-2
For timing adjustment, the following procedures using
a
timing light: (See Fig-
7-32)
Disconnect the stop button lead wires and the coil primary wire.
Remove blower housing from engine.
Connect one
of
the timing light leads to the coil primary wire and ground the other lead
to
crankcase. (see Fig.
7-3-1)
While the points are open, the light remains on and when the points are closed, the light is extinguished.
Turn flywheel slowly counter-clockwise
(D
type engines) or clockwise
(B
type engines) until the light extinguishes.
Then, turn flywheel very slowly clockwise
(D
type engines) or counter-clockwise
(B
type engines) and stop immediately
the moment the light lights up. Check
if
the slit on the flywheel is in the time with the mark on the crankcase. When
the mark line is in alignment, the timing is correct.
If the timing mark lines are not in alignment, then re-adjust the point opening according to the
BREAKER
POINT
ADJUSTMENT,
by removing the flywheel and repeat the checking procedures
3)
through
5).
After completing the timing adjustment, re-mount the blower housing and connect the coil primary lead to the stop
button.
7-4
MAGNETO
SERVICE
INSTRUCTIONS
When engine does not start or starts with difficulty or when its operation is unstable, observe following tests to see
if
such
a
defect is caused by a defect in magneto.
1)
Check ignition coil for looseness, corrosion, breakage, or abrasion.
2)
Check sparking referring to “CHECKING
THE
IGNITION
SPARK”,
given below.
3)
Check if breaker points require cleaning or adjustment.
If
they are contaminated, corroded, or pitted, replace them.
(Condenser may have to be replaced in this case) See
“BREAKER
POINT ADJUSTMENT”.
4)
If
no spark takes place, replace ignition coil.
-19-