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Help!
Posted: Fri Dec 31, 2021 3:49 pm
by Jonah D'Avella
Okay, so I am completely baffled. A few weeks ago my Magneto completely stopped working even though it is still out putting power. I think somehow it is grounded but I don't know why it is still out putting power then. Any thoughts? I have tested everything I know to do with a voltmeter.
Re: Help!
Posted: Fri Dec 31, 2021 4:04 pm
by Humblej
If your mag is producing power, your problem is not your mag, it is your wiring or ignition switch.
Re: Help!
Posted: Fri Dec 31, 2021 4:07 pm
by John iaccino
Check your mag plug on top of the hogs head. It may have a lot of 'fuzz' on it, blocking the electrical connection.
Re: Help!
Posted: Fri Dec 31, 2021 4:49 pm
by Rich Eagle
I found that caused by a loose wire at the terminal block. It's easy to check.
Just a possibility.
Rich
Re: Help!
Posted: Fri Dec 31, 2021 5:13 pm
by Scott_Conger
Jonah
unless you are using an analog meter and a load, you really don't know what your mag is doing.
do the test here:
http://www.mtfca.com/discus/messages/70 ... 760271.pdf starting with the mag post output.
If no go, then pull the mag post and test directly to the solder blob on the top of the mag
if no go, then it is dead, and if it went dead suddenly, you may have inadvertantly demagenetized the magnets and you may well need the magnets recharged.
Do the test first, though.
Re: Help!
Posted: Fri Dec 31, 2021 5:29 pm
by Norman Kling
Do these things first. Check the wire between the magneto post and the terminal block. Then check the wire between the terminal block and the ignition switch. You should have continuity between all these points, however, there should be no connection between the magneto and the battery. Be sure that the switch either connects to the magneto or the battery, but not both at the same time. With the engine off, press the clutch lever into the low position and then let it out into the high position. Then go to the front of the engine and gently pry the pulley forward. If the crankshaft moves noticeably you have too much end play. This must be addressed before the magneto will work correctly.
Next step start the engine on battery and take an analog AC voltmeter between the ground and the magneto post. At idle, you should have 6 V AC or more. And it should increase with the speed of the engine. If you don't have the 6 V but the end play is OK, you might be able to recharge the magnets. If not, you might need to pull the engine and transmission to repair the magneto.
Norm