This is a completely safe method that will work on any ignition coil. Another diagnostic tool that will work is a multi-meter, if set to measure resistance. A gap that is too wide or too narrow will not allow the ignition system to work properly. However, if you install an OEM original equipment manufacturer replacement part, achieving the correct gap should be automatic.
If you are buying an aftermarket replacement part, on the other hand, you may need to adjust the gap manually. Remove the cowling the outer housing from around the engine, loosening whatever screws or bolts are holding it in place. With many lawnmowers, this will be enough to expose the flywheel and ignition coil; with other mowers, you may need to remove some other shields or parts before you see the coil.
It will be the part mounted near the engine flywheel and will have an insulated wire leading to the top of the spark plug mounted in the engine block. Remove the spark plug wire from the spark plug. Loosen the mounting bolts that hold the ignition coil to the engine frame. This will usually mean unscrewing small bolts or screws, or sometimes a pair of set screws.
Remove the ignition coil from the bracket or mounting block holding it in place. If the ignition coil has a ground wire, also loosen and remove this at the point it attaches to the lawnmower chassis. Lay the ignition coil on a work surface. Set the dial on an ohm meter or multi-meter to 20k ohms. Insert the positive lead on the ohm meter into the end socket or the metal hoop on the spark plug wire. Put the negative lead of the tester onto the metal armature portion of the ignition coil.
As you watch the meter display, scratch both leads around to make sure you are making good metal-to-metal contact. Look at the reading on the ohm meter. Look to see if the DVOM test shows low to no ohms; if so, then you have a faulty ignition module that will have to be replaced. Follow the service manual instructions for your vehicle to replace the module. Paul Vaughn has worked in the auto and diesel mechanics field for 10 years and as public school automotive vocational teacher for five years.
He currently teaches high school auto tech, covering year model vehicles as old as to as new as Step 1 Use a wiring diagram for the year model of your vehicle. Step 2 Turn the ignition on and use your DVOM to check for voltage to the ignition module and the positive terminal of the ignition coil. Step 4 If your test light does not flicker on and off, visually inspect the wires running into and out of the ignition module. Tips Make sure you have checked all wires going into and out of the ignition module as well as the ignition coil.
Order within the next 6 hours. Repair Instructions. Shipping: Ships Worldwide. Description: This replacement ignition module also known as an armature-magneto is specially designed for use with Poulan and Husqvarna chainsaws. It is an authentic item that is supplied directly from original equipment manufacturer. In conjunction with an armature it produces pulses of high voltage for the spark plugs. It is made out of metal with rubber insulated cord.
Please note, it does includes the rubber spark plug boot in this assembly. Replacing an ignition module may vary based on equipment, however basic steps would be the same for most users. You may need pliers and a screwdriver set to complete thise repair. Warning: California's Proposition Compatibility This part is compatible with the following machines: Poulan. Ask a question. How do you test the ignition module for a husqvarne 41 chain saw.
Joe for model number 41 asked on Hi Joe, Thank you for your question. To test the ignition module, you will need an ignition tester and needle nose pliers. Do not touch the ignition tester or any other electrical components as you may get an electric shock. Also, you will need someone to assist you, so they can check the test window. First, remove the spark plug and clip the clamp from ignition tester to the spark plug.
Insert the end of the tester that contains the probe into the spark plug boot and then try to start the chainsaw. Have your assistant check the test window to see if there is a spark when you start the chainsaw. If you see a spark, the ignition coil and the spark plug are working normally. Drive signals from Cam and crank sensors to ECU 3.
The tester simulates all pickup signal, whether Hall or magnetic, either from the Cam or Crank sensors or the Distributer. These signals then drive the ignition module which fires the coil. Is the ECU function tested? The ECU controls the firing sequence and spark timing based on internal ignition maps.
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