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II. INSPECTION AND ADJUSTMENT
Ignition
ti.ming
To
assure
efficienl
~ration
of the engine. the timing
should
be checked with a sl'(.oboscopic
timing
ligllt
or
a
test
lamp
(l
2V
3\V). Make sure that the poim gap
is adjllsted properly
before checking
tlte
ignition timing
*
With
stroboscopic
tjming lighC
J.
Connect
the timing
lighl
2.
Start the
e<1gine and allow it to
idle
at
l
.200
rpm.
J.
Aim the matching mark with
the
timing
light and
sec
if
t11e mark ..
fl''
aligns
with the index
mark.
If
not aligned.
loosen
the screws
and
rotate the
base
plate
in either direction.
RotatiJ1g
the
plate
clockwi;e
will advance the timing.
Rotation of the
plate
in
co11nterclockwise
.
d irection will retard
the
timing.
4.
Raise
the
engine speed up to
4
,000
rpm
and again check
U1e
index
mark. The igni
lion
liming is correct if
the
index
mark
js
between
the
advance marks.
*
With test lamp
I.
Connect one
lead
of
the test lamp
to
the contact
breaker spring
and
the other
to
the
engine
(ground}
2.
Turn on both the main and ignition switch•~
3. Slowly
turn the
generator rotor in
a
counterclockwise
direction
until
the lamp is about
lo
light
..
Timing
is
correct if
the
mark
"F"
is lined up w,th
the index
mark
4. When
adjustment is
neces..<-1ary,
loosen
the locking screws
and rotate the lme plate
as
necessary.
3. CARBURETOR
Make adjustments with
the
engine
"'armed
up.
J.
Set
the
engine
at
an idle speed of 1,200 rpm
by turning
the throttle
stop
screw.
Rotation
of
1l1e throt11e
stop
screw in a clockwise direction will increase d1e idle
speed. and vice
versa
,
2.
Turn
the
air
strew
eithe.
r
in or out
to
obtain ,he highest
idle
speed.
(Correct
idle
speed
will be
obtained by
turning
the
air
screw all
the
way in
and
then backing it
out
l¼
lurns).
3.
I
f it.Ile
speed is increased
or decreased
above
or below
the
specified
selling. readjust
hy the throttle stop
screw.
Specified
idle
speed:
l.200
rpm
4. THROTTLE GRIP PLAY
J.
'T1ie throttle grip should
be
adjusted to
have
I
0-
t
5°
play
of
the grip
rolatiou.
To adjust. loosen the
lock
nut and turn
Uie
grip play
adjuster
eilhet
in or
out
as necessary,
Fig.
2,4
(J)
(3)
(1)
Fig.
2
s
Generator rotor
('.!)
"F" tnark
Index mark (4) Advance mark
Rase
plate
locking
screw
l!ase
plate
(3)
Test
lamp
Fig. 2-6
(l)
Stop
screw
(2)
Air
screw
/
--------(1)
'
I
'
(2)
fig. 2-7
(I)
Lock nut
(2)
Grip play adju,tcr
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