Arctic Cat Panther 1974 Manual page 95

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IGNITION SYSTEM TESTING
2.
3.
II
Grasp the recoil handle, then crank the engine
over quickly.
If red light on tester illuminates, spark plug
and high voltage output is satisfactory . I fred
light did not illuminate, proceed to step 4.
Note: Remember to press the RESET button
after the red light illuminates.
4. Remove customer's old spark plug and install
new plug, using a 13/16-inch spark plug
socket. Connect high tension wire to spark
plug.
5. Connect one lead of tester to ground and the
other lead on the high tension wire, Fig.
IV-16. Set tester dial on 70.
6. Grasp recoil handle, then crank engine over
quickly.
7. If red light on tester illuminates, high voltage
output is satisfactory and customer's old
spark plug is defective. I f red I ight on tester
did not illuminate, the ignition system or the
wiring harness may be defective. Check both
the ignition system and wiring harness to
isolate the problem (see Ignition System and
Main Wiring Harness Check, page IV-11).
Ignition System and Main Wiring Harness Check
Equipment Necessary: Electro-Specialties CD
Ignition Tester Model No.1
1. Disconnect the main wiring harness from the
engine connector plug.
2. Connect one lead of the tester to ground and
the other lead on the high tension wire, Fig.
I V -16. Set tester dial on 70.
3. Grasp the recoil handle, then crank the engine
over quickly.
4. If red light illuminates, high voltage output is
satisfactory and indicates there is a problem
in the main wiring harness or related switches.
Check all the switches to find the problem
area (see Check Main Wiring Harness and
Related Switches, page IV-11). If red light did
not illuminate, high voltage is not satisfactory
and indicates there is a problem in the
ignition system, not in the main wiring
harness or switches. Check ignition system
components to find the problem area (see
Check Ignition-Related Components, page
IV-12).
Check Main Wiring Harness and Related Switches
Equipment Necessary: Electro-Specialties
Ohmmeter Model No. PC2
II
Note: Before checking harness and switches,
loosen screw holding throttle wire to
carburetor-mounted throttle arm, using screwdriver
having 1/4-inch blade. Pull all slack out of throttle
wire, plus an additional 1/16-inch, which will
tension the throttle _ safety switch properly; then
tighten screw.
1. Make sure the main wiring harness is dis-
connected from the engine connector plug.
2. Rotate the ignition switch to the ON position.
3. Connect one lead of the ohmmeter to a black
wire in the wiring harness connector plug and
the other lead to the remaining black wire in
the connector plug, Fig. IV -17.
Fig.IV-17
@ @
adjust 011
Blk
Main Wiring
Harness Connector
4. If the ohmmeter reads infinity (OPEN), Fig.
IV-17, an open circuit exists and the switches
are satisfactory. If the ohmmeter reads 0
or very low resistance, a short circuit exists
and a switch may not be operating properly.
To - determine if a switch or the wiring
harness is defective, proceed to step 5 and
6.
5. Disconnect the main wiring harness connector
plug from the ignition switch, Fig. I V-5. Also,
IV-ll