Magneto Col Kokusan 120W; High Voltage Output Test - Arctic Cat Pantera 1978 Service Manual

Fig. 8-23
Magneto COl
Kokusan 120W
MAGNETO STATOR
Usage: Pantera FA
High Voltage Output Test
0725-772
140
Fig. 8-25
0725-498
1. Install the B9EV plug in NO.2 cylinder nextto
flywheel. Attach plug wire with metal con-
nector. Also have No. 1 plug wire either
grounded or attached to a spark plug.
NEVER CRANK ANY ENGINE OVER WITH
THE PLUG WIRE NOT BEING GROUNDED.
DAMAGE TO THE COIL OR COl UNIT WILL
RESULT.
2. Connect the yellow lead tester to NO.2 plug
wire with MM-1 secondary output adaptor.
Ground the red lead of tester to the enqine.
Set the dial of the tester on 70. Crank the
engine over quickly. If the red light of tester
fails to illuminate, high voltage is not satis-
factory and there is a problem indicated in
the ignition system. Repeat the test three
times for conclusive results. Proceed to COl
Unit Output Test.
To accurately check the high voltage output,
remove both the resistor type spark plugs and
resistor cap from the spark plug wire. In their
place, for test purposes only, substitute a B9EV
spark plug and a metal automotive type spark
plug wire end. If either of these resistor type items
is left in place while tests are being conducted, an
inaccurate reading will result.
BTDC 22'
BTDC 20'
BTDC 18'
BTDC 16'
Fig. 8-24
0725·771
BTDC 24
0 --~
BTDC 22'
_~"'I-\....'
BTDC 20
0 ~f--,\\
BTDC 181;>
BTDC 16
0 --H-,\ \\ \
BTDC 14'
-++-,\,'\,H
BTDC 12°
9. Tighten screws and check timing.
NOTE: If either the magneto or the base-
~
plate is replaced, the timing marks will no
longer be accurate. Use steps 1-3 to establish
new marks.
8. Rotate the magneto baseplate clockwise to
retard the timing or counterclockwise to
advance the timing.