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Use this guide to remove or replace the fuel petcock on a Wacker BS50-4AS REV 101 (2019) Vibrator/Rammer.
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Firmly grip the base of the spark plug wire's connector and pull it away from the spark plug to disconnect it.
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Use a 10 mm socket to remove the bolt securing the throttle assembly's ground wire.
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Remove the ground wire.
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Grip the throttle cable's black wire bullet connecter and pull to disconnect it from the engine.
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Grab both ends of the throttle wires and feed them out, past the metal engine guard.
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Use a pair of flush cutters to cut the cable tie securing the throttle wires together.
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Move the throttle lever all the way into the SLOW position, towards the front of the device, to loosen tension on the throttle cable.
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Use a Phillips driver to remove the screw securing the throttle cable to the actuator arm on the motor.
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Use an 8 mm socket to remove the two bolts securing the throttle assembly to the frame.
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Grip the throttle assembly from underneath and lower it down through its cutout in the frame.
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Holding the throttle assembly in place, pull the throttle cable through the hole on the throttle lever.
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Remove the throttle cable.
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During reassembly, ensure the throttle cable guide shoulder is fully recessed into its section on the throttle assembly.
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Place a rag or shop towel underneath the petcock fuel lines to prevent drips and spills from getting on the device.
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Grip one of the clear fuel tubes near where it connects to the petcock and squeeze it completely closed.
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Pull the tube directly away from the petcock nipple to remove it.
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Disconnect the second fuel tube from the petcock.
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Thread the throttle wires out from underneath the metal engine guard.
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Remove the throttle assembly.
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Use a 3 mm hex key to remove the two bolts securing the petcock to the throttle assembly.
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Remove the petcock.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
