Series 4180 Powerhead 19
N Remove the cover, @ 4.3.
N Pull boot (11) off the spark plug.
N Connect ZAT 4 input terminal (30) to spark plug boot
(11).
N Connect ZAT 4 output terminal (32) to spark plug
(16).
N Pull the starter several times and observe the spark
window on the ZAT 4 at the same time:
If no spark is visible in the ZAT 4 window (31), check
ignition system with the aid of the troubleshooting chart.
8.6 Removing the Ignition Module
N Remove the shroud, @ 4.2.
N Remove the fan housing, @ 7.1
N Pull boot (14) off the spark plug.
N Disconnect short circuit wire’s flag terminal (2) from
the ignition module (18).
N Take out the screws (12) and remove them together
with the washers (13).
N Remove the ignition module (18) together with the
insulator (17).
8.7 Installing the Ignition Module
N Fit the ignition module (18) together with the insulator
(17) in position.
N Insert the screws (12) together with the washers (13).
N Adjust air gap between ignition module (18) and
flywheel (10) with the setting gauge 4118 890 6401
(16).
N Tighten down the screws (12).
N Connect short circuit wire’s flag terminal (2) to
connector tag on ignition module.
N Push the short circuit wire (2) into the recess on the
insulator.
N Fit the boot (14) on the spark plug (16).
N Install the fan housing, @ 7.3
N Install the shroud, @ 4.5.
8.8 Removing Spark Plug Boot and Leg Spring
N Pull the boot (14) off the spark plug (16).
N Use suitable pliers to the pull leg spring (15) out of the
spark plug boot (14).
N Remove the leg spring (15) from the ignition lead.
N Pull the spark plug boot (14) off the ignition lead.
8.9 Installing Spark Plug Boot and Leg Spring
The ignition lead cannot be renewed because it is
permanently molded to the ignition module.
3130 32
0000-GXX-2959-A0
18
16
0000-GXX-1930-A0
0000-GXX-2315-A0
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