Snowmobile Arctic Cat (2000 year). Manual - part 67
3. Insert an auxiliary ground wire into the black wire
of the four-wire main harness connector on the
engine side. To stop the engine once it has been
started, touch the auxiliary ground wire to the
engine.
4. Support the rear of the snowmobile up on a shielded
safety stand; then set the brake lever lock. Inspect
the complete throttle mechanism to assure that it’s
working properly.
5. Attempt to start the engine. To stop the engine (if
the engine starts), touch the auxiliary ground wire
installed into the four-wire connector to a ground
on the engine. If the engine fails to start, the
problem is with the coils mounted on the engine,
high tension coil assembly, or the ECU. If the
engine starts, the problem is with the switches,
main wiring harness, or throttle cable free-play.
IGNITION KEY SWITCH
1. Disconnect the ignition key switch connectors; then
connect the ohmmeter leads to each of the ignition
key switch terminals.
2. With the switch in the OFF position, the meter must
read less than 1 ohm of resistance.
3. With the switch in the ON position, the meter must
read OL (infinite resistance).
THROTTLE CONTROL SWITCH
1. Verify that the throttle cable has free-play between
the throttle lever and control housing.
2. Disconnect the throttle control switch connector;
then connect one ohmmeter lead to the brown wire
and the other lead to the black/white wire of the
emergency stop switch.
3. With the throttle lever in the idle position and the
emergency stop knob in the up (RUN) position, the
meter must read no resistance (open). If the meter
reads resistance (closed), replace the switch.
4. With the throttle lever in the idle position and the
emergency stop knob in the down (STOP) position,
the meter must read resistance (closed). If the meter
reads no resistance (open), replace the switch. With
the emergency stop knob still in the down (STOP)
position, move the throttle lever to the wide open
position. The meter must read no resistance (open).
If the meter reads resistance (closed), replace the
switch.
5. Connect one ohmmeter lead to the brown wire and
the other lead to the violet wire. With the
emergency stop knob in the down (STOP) position,
the meter must read resistance (closed). If the meter
reads no resistance (open), replace the switch. With
the emergency stop knob in the up (RUN) position,
the meter must read no resistance (open). If the
meter reads resistance (closed), replace the switch.
Troubleshooting
Ignition System
(Fan Cooled Models)
When troubleshooting the standard “normally open”
ignition system, use the following procedure.
1. Remove the spark plugs and visually check their
condition. Replace any fouled plug. Attach the
spark plugs to the high tension leads and ground
them on the cylinder heads.
Before checking for spark, place all the engine
switches in the deactivated position. In the event
the engine could be flooded, pull the starter rope
(slowly at first) several times to clear the engine
of excess fuel.
Never crank the engine over without grounding
the spark plugs. Damage to coils and/or CDI unit
may result.
NOTE: Make sure the ignition switch and the
emergency stop switch are in the ON position.
2. Crank the engine over and check for spark. If no
spark is present, check to make sure the throttle
cable is properly tensioned. Compress the throttle
control and while holding the throttle control in this
position, crank the engine over and check for spark.
If spark is now present, adjust the throttle cable
tension.
NOTE: On the models equipped with a 2-wire
throttle control switch connector, there must be no
free-play between the lever and the control housing.
! CAUTION
! CAUTION
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