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F.
Checking Autolube
Pump Minimum
Stroke
Set the gap
between the
adIustment pulley
and the
ad1ustment plate as
wide
as possible
Do this by
rotating
the
starter
plate
w ith
your
thumb in the
di-
rect
ion
of the
arrow.
2
Try to
insert
a O
007
inch
(0 15
mm)
feeler gage
in-
to the
gap.
If It
f
its.
the
stroke
Is
sufficient.
3
.
If
the
gage
cannot enter
the
gap.
remove
the
lock
nut
and adIustment
plate.
Install
O 1
mm brass ad
-
justment
shims
until.
with
plate
and
locknut
installed.
a
0
.008
inch
(0 .20
mm)
18
feeler gauge can
enter.
but
c
0
.01 inch (0.25 mm)
gau;:ie
cannot.
(
JT2L
-
JT2M)
.011"
-
.013"
G.
Adjusting the
Carburetor
The only carburetor
adjust-
ment to be made this time is
to lightly tighten the throttle
stop
screw and back it off
1
½
turns.
All other adjustments
are
made
later.
with the en-
gine
running
.
'J
H.
Checking Ignition
Timing
1.
Remove
the
generator
cover from the left side
of the
crankcase.
2
.
Pull the wire lead cap
assembly off the spark
plug.
Using a
21
mm
socket
wrench.
remove
the spark
plug.
3
.
Turn the magneto rotor
by hand until the points
close.
4.
Dip a thin strip of card-
board. such as a business
card. in lacquer
thinner.
----
5
.
Pry the points open with
your
fingers.
Then let the
points snap
shut
on the
wet
cardboard.
Slowly
withdraw
the
cardboard.
Repeat until the points
are
clean.
6
.
Obtain a Yamaha point
checker
(ohmmeter).
Turn the toggle switch to
ON.
Make sure the wire
leads are not
touching.
then set the needle at
infinity (oo)
by turning the
ADJ
knob.
When
the
needle
is
set.
turn the
toggle switch
to
OFF.
7
.
Connect the red lead of
the point checker to the
black coil wire
.
(See
page
11
.
step J .6
.)
Connect
the black lead to a good
ground.
such as a gener-
ator cover mounting screw
hole or a cylinder head
cooling fin
.
19
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