Wacker Neuson BS 50-4s, BS 50-4As, Repair Manual

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wc_tx004063gb_FM10.fm
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Rammer Troubleshooting
3.5 Checking the Stop Switch
Requirements
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Multimeter
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Typical hand tools
Background For both 2-stroke and 4-stroke powered Rammers, the throttle lever acts as the
stop switch when it is placed in the STOP position. The stop switch is a normally
open (NO) switch; when activated (placed in the STOP position) it creates a short
circuit to ground. The short circuit prevents the spark plug from firing and stops the
engine.
Procedure Perform the procedure below to check the stop switch.
1. For WM80, 2-stroke engines, start with step 3.
2. Locate the wire (a or b) running from the throttle/stop switch to the engine.
Disconnect the wire from the engine.
This procedure continues on the next page.
wc_gr012943
WM 100 / ROBIN
HONDA
a
b