Disassembling The Ignition Lead; Assembling The Ignition Lead; Installing The Ignition Lead; Removing The Controller - Stihl MS 500i Service Manual

19.4

Disassembling the Ignition Lead

Remove the ignition lead, @ 19.3.
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Pull the spark plug boot (2) off the ignition lead (4).
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Pull the leg spring (3) off the ignition lead (4).
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19.5

Assembling the Ignition Lead

Cut new ignition lead (4) to length of 150 mm (6 in).
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3
a
4
Use a needle to pierce the center of the ignition lead's
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insulation at distance 'a' = 10 mm (0.35 in) from the
end of the lead (4).
Pinch the hook of the leg spring (3) into the pierced
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hole in the ignition lead (4) as far as stop.
Coat inside of spark plug boot (2) with press fluid.
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Hold the ignition lead (4) and leg spring (3) together
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and push them into the spark plug boot (2) as far as
stop.
Install the ignition lead, @ 19.6.
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19.6

Installing the Ignition Lead

Assemble the ignition lead, @ 19.5.
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Fit the grommet (5) on the ignition lead (4).
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Position the ignition lead (4) behind the sensor wires
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(arrow) and inside the guide rib (arrow).
Screw the ignition lead (4) clockwise into the
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controller (6) as far as stop.
Push the grommet (5) onto the controller (6).
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Push the ignition lead (4) into the guide (arrow).
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MS 500i
3
2
2
4
5
6
Fit the spark plug boot (2) so that its tab (arrow) is
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seated in the recess in the airflow shroud.
Mount the shroud.
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Fit the filter cover.
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19.7

Removing the Controller

Preparations, @ 3.1.
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Remove the filter cover
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Remove the air filter.
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Remove the shroud.
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Remove the filter base, @ 15.2.
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Remove the throttle body and sleeve, @ 15.4.
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Unlock and remove the cover (8).
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12
7
If area around the connectors (12, 13, 14) on the
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controller (6) is dirty: Clean the controller (6) around
the connectors (12, 13, 14).
Unlock and remove the white connector (12).
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Unlock and remove the blue connector (13).
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14
13
6
33