27Series 4144 Components FC, FS, KM
5.10 Ignition System Troubleshooting
Engine does not run
Knob on carburetor:
– in position "F"?
Check the spark plug:
– Smeared with oil, black?
– Sooted?
– Electrode gap correct?
– Contacts shorted?
– Clean, readjust or replace the plug,
see "Series 4144 Powerhead"
Check the 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,
see "Series 4144 Powerhead"
Test ignition system:
with ZAT 3 or ZAT 4
(use ZAT 3 as main spark gap
see TI 32.94),
see "Series 4144 Powerhead"
1
Troubleshooting can be performed with the engine installed. Refer to service manuals of "Series 4144 Powerhead"
or "Series 4144 Components – FS, FC, KM" for descriptions of procedures.
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