26 thoughts on “How to clean and adjust the magneto

  1. Mine read 4.89. Although this is within range, is it close enough that replacement would be advisable? I ordered the new parts before realizing I could try testing and cleaning them. After cleaning them and the magnet, the mower works again.

  2. Thank you for posting this! I've got the spark working again on a Honda Harmony 1011. It had been only firing up when it was cold, then it wouldn't start at all. I found the gap was VERY wrong, and it needed to be cleaned. Your video was detailed and helpful.

  3. Thank you for this informative video! My snapper riding mower with briggs 12hp I/C Quiet Rider motor would not fire up.. after much messing around, I found out that I was not getting any spark, followed your instructions and its firing right up again! My magneto looked super rusty.. so did the flywheel, this was some long overdue maintenance.

  4. Nice video. I have an old Wolesley Tiller with Aspera engine, TA633 / FAB12, getting no spark. Once I get the flywheel knocked off the machine I'm hoping to put your instructions to work!

  5. He should've used emery cloth so there wouldn't be "sandpaper" grit all in the flywheel – blowing air around may push the grit in further!

  6. Very good video, really helped me with the cleaning of my armature-magneto on my briggs & stratton mower, now it starts every time regardless engine is hot or not. Keep up the good work!

  7. Very good video!! I followed the instructions and my motor is running like a champ now. Thanks, ESRepair!!!

  8. Thanks for the video! Your instruction worked like a charm. Magneto checked out fine with the resistance meter (volt meter). New spark plug install and yet NO SPARK. Could not figure it out. Was about to throw $30 into a new magneto when I saw your video and in about a few minutes i was running again.

    This also saved me a BUNCH of gasoline. I was burning twice as much gas until I did this cleaning. All these seasons, I have been wasting gas. Efficiency improvement was the icing on the cake. Thanks.

    Ignore all the haters and trash talker.

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