Testing Ignition System; Testing Main Wiring And Safely Switches - Arctic Cat EL TIGRE 1980 Service Manual

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Testing Ignition
System
The 120 watt ignition system used in the 5000
(NIPPON DENSO COi) and 6000 (KOKUSAN
DENKI COi) is of the ' 'closed'' type. The ''clos-
ed'' ignition system offers a safety advantage
to the consumer in that the ignition is depen-
dent on a complete circuit for its ground. If the
circuit is broken (connection should lose con-
tact or a connector should become pulled
apart), ignition is lost and the engine will in-
stantly stop.
The troubleshooting procedure for the standard
''non-closed'' ignition system cannot be used
for the ''closed'' ignition system and the follow-
ing procedure must be used .
1. Remove the spark plugs and visually check
condition. Replace any fouled plug. Attach
the spark plugs to the high tension leads
and ground them on the cylinder head(s).
Fig. 5·1
84
--~-
8017
NOTE: Make sure all switches are in 'the
ON position.
2. Crank the engine over quickly and check
for spark. If no spark is present, check to
make sure throttle cable is properly ten-
sioned by compressing the throttle control.
While holding the throttle control in this
position , crank the engine over and check
for spark. If spark is now present, adjust
throttle-cable tension to rem ove slack from
the cable. If no spark is present, proceed to
step 3.
3. Disconnect the main wiring harness from
the engine; then using a short piece o f w ire,
ground the black lead in th e eng in e four-
wire plug to a good ground on t he engi ne
(any clean , unpainted metal surface) . Crank
the engine over. If spark is present, t he pro-
blem is either one or more of the follow ing:
a. Defective igniti on swi tch
b. Defective emergency stop switch
c. Defective safety swi t ches in throt tle-
control handle
d. Corroded or loose w ire connec t io n at
the throttle-contro l handl e, ign it ion
switch , or main w iring harn ess
To check these possible cau ses, proceed to
Testing Main Wiring and Safety Sw itches . If no
spark is present, proceed to Test ing Ignit io n
Coi I Output.
1 .
Testing Main Wiring
and Safety Switches
Check wire connections at ignition switch
and at the throttle-control handle for
tightness and cleanliness. If connections
appear dirty or corroded, clean with fine
sandpaper and compressed air; then con-
nect all wires and squeeze connections
with a pliers for added tightness. Using an
ohmmeter, connect one lead to the black
wire in the main wiring harness. Connect
the other ohmmeter lead to the brown wire
in the harness.
2. With all switches in the ON position, the
meter must read CLOSED.
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