How to Wire Up a Briggs & Stratton Ignition Module

Engines Built After 1982

• 1

  Remove the old ignition module from the engine if still installed. Loosen the mounting screws and disconnect the stop switch from the flywheel. Pull out the old ignition module.

• 2

  Place the new ignition module where the old one was and loosely tighten screws with a screwdriver. Tighten one screw down when both are in place.

• 3

  Rotate the flywheel so that the magnets on the flywheel are opposite the magnets on the ignition armature.

• 4

  Place the shim that came with the ignition module between the flywheel and ignition module. Hold the shim in place and turn the flywheel until the magnets on both the flywheel and the ignition module are adjacent.

• 5

  Loosen the screw that was previously tightened. This will allow the magnets on the flywheel to pull the ignition module toward it.

• 6

  Tighten all of the screws. Rotate the flywheel one last time until the shim slips free and remove the shim.

• 7

  Reattach the stop switch. Start the engine to make sure the repair was successful.

Engines Built Before 1982

• 8

  Disconnect the spark plug wire. Push it aside or attach it out of the way from the plug so that there is no contact while removing the old module.

• 9

  Remove the flywheel with the socket set and discard the flywheel key.

• 10

  Cut the switch wires connected to the ignition module with the wire cutters. Cut as close as is possible to the dust cover.

• 11

  Remove the dust cover after the wires are cut and the plugs and plunger attached. Plug the plunger hole with the plug that is supplied with the ignition module replacement kit.

• 12

  Remove the mounting screws and pull out the old ignition module. It will still be attached with a primary wire.
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• 13

  Cut the primary wire with the wire cutters so that only about 3 inches remains. Use the wire strippers or a utility knife to strip 1/2 to 3/4 inch of the red insulation.

• 14

  Install the ignition module that comes with the conversion kit. Adjust the brackets by hand for proper clearance between the flywheel and module. The space required will depend on the engine module and will be found with the owner's manual.

• 15

  Push open the spring-loaded wire retainer on the ignition module by pressing down with the pin punch. With the slot open, insert the module's primary wire and a new stop switch wire. Release the wire retainer, which will lock the wires in place.

• 16

  Secure the wires in place by soldering the ends with a soldering gun or iron and 60/40 rosin core solder.

• 17

  Twist the module's ground wires close to the armature coil and solder the twisted section together. Take care to not damage the armature's coil casing. Avoid crossing the ground wires with those inserted in the wire retainer.

• 18

  Remove the shortest of the ground wires by cutting it close to the soldered connection with the wire cutters. Attach the wires to the armature coil with the silicon sealer. This will prevent the wires from coming loose from the vibration of the engine.

• 19

  Screw in with the socket wrench one of the included screws to attach the remaining ground wire to the armature.

• 20

  Fasten the armature to the engine so that the wire retainer is toward the cylinder.

• 21

  Remove the remainder of the original stop switch wire. Cut it with the wire cutters as close as possible to the terminal on the engine. Route the new wire from the module, following the same path as the wire that was attached to the old module, and fasten it. Make sure it is out of the path of the flywheel.

• 22

  Reinstall the flywheel. Insert the flywheel key that came with the conversion kit. Tighten the flywheel with a socket.

• 23

  Set the gap to the proper width depending on the model of the engine. Test the unit to make sure that the replacement was successful.