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The magneto armature is attached to the crankcase next to the flywheel. It can be located by following the spark plug wire. This leads directly from the spark plug to the magneto.
.20-.24
Ngk br8es .022
I believe its .020 with a magneto.
air gap improperly set between fly wheel and magneto, bad coil, spark plug harness. Would not hurt to check the spark plug gap and ensure the connector end is tight
No, a magneto is what creates electricity to send to the spark plug. Without a magneto, any gasoline engine will not run because it will not have a spark.
If you have access to a spark tester, use it. Otherwise, remove the spark plug, reconnect it to the spark plug wire, and rest the tip or threads on a good engine ground, AWAY from the spark plug hole. Attempt to start it, and watch for spark. If none, replace the spark plug and try again. If still no spark, the magneto coil may be faulty.
Defective spark plug, plug wire, burnt valve, busted piston, bad rings, blown head gasket or cracked head.Defective spark plug, plug wire, burnt valve, busted piston, bad rings, blown head gasket or cracked head.
No--a voltage regulator would prevent a battery charging. Your dirtbike most likely has a magneto, feeding a coil or spark exciter. Test park by pulling spark plug, reinserting plug into plug wire, grounding electrode on motor head, and turning over engine. You should get a "blue," audible spark. A weak yellow spark indicates a bad coil; no spark is usually a failed magneto--quite often the shear-pin has been sheared, and the magneto is now out of timing. All of these fixes are pretty easy, a new coil being the most expensive.
It is a magneto, a little piece under the flywheel cowl with two metal tabs that almost touch the side of the flywheel. Embedded in the flywheel is a magnet that provides a signal to the magneto each time it comes around to fire the spark plug.
does it have spark to the plug if not the part you might check would be the coil or the electronic start module probably the latter if it is a newer mower or of ots older then the coil magneto usually dont go bad could be a bad gap between the coil and the magneto if its an older mower could be a bad set of points if its an older mower point gap could be bad spark plug could be bad as I don't know exactly what the lawn mower is doing hard to tell what is wrong
Can be a defective plug wire, burnt valve, cracked head, or blown head gasket. Replace the spark plug wires. If you still have the miss, have a compression test run on all cylinders. Low compression on cylinder #4 indicates a burnt valve, cracked head, or blown head gasket.