Switch from both magnetos to left and right individually and note the RPM differences. You need to check the individual aircraft's POH, but a drop of more than 150, or a difference of more than 75 between the sides is typically cause for concern.
Magneto is the good guy, but he's a sort of a good bad guy.
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
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
Magneto from X-men.
no they are just good friends
It could be that your CDI has failed. or is blown/broken whatever you'd want to call it. Either that or your coil. Or Worst comes to worst, Your Magneto is bad. OR check your battery might be no good ,solinoid might be bad ,wire might be broken, wires might be lose or dirty or last but not least the starter might be junk or need rebuild.
The magneto has 2 separate outputs - 1 to the ignition and 1 to the accessories (AKA Lights). If you are sure that you have power coming from both parts, then you need to check your switches (On/off switch and Key Switch). If they test OK, then check your spark plug wires for continuity. If that is OK, then you need to check your coil (There are coil tests on youtube). If your coil is functional, then the last thing to replace is the CDI. Unfortunately, there aren't any tests for that. It is either good or bad. You can and should check the pickup gap for the CDI - (Distance between the pickup and the flywheel at a predetermined point - typically a thicker or raised point on the flywheel).
If it is bad the check engine light will come on and set a code for that particular sensor.
place the magnet on the flywheel in front of magneto and place a buisness card between flywheel and magneto and tighten magneto down.......remove buisness card..
Wacko Magneto was created in 1996.
Cap'n Magneto was created in 1985.
Cap'n Magneto happened in 1985.