54 MS 461, MS 461-R
7.7 Ignition System Troubleshooting
Engine does not run
Master Control lever:
– in position "F"?
Check the spark plug:
– Smeared with oil, black?
– Sooted?
– Electrode gap correct?
– Contacts shorted?
– Clean, readjust or replace the spark plug,
b 7.3
Check spark plug boot:
– Firmly seated on plug (leg spring)?
– Leg spring hook in center of ignition lead?
– Boot damaged?
– If necessary, install new spark plug boot and/
or leg spring,
b 7.4
Test ignition system:
with ZAT 3 or ZAT 4
(use ZAT 3 as main spark gap
see TI 32.94), or test with MDG 1
b 7.3, b 7.3.1
1