Whatever way the magnets want to naturally stick to the poles in the speedo is correct
The field is going to re-enforce the magnetism the correct way
The goal is to make one side of the spinny part north and the other side south
There was a thread where I drew a diagram to explain it
Don’t know how to link to it at the moment but assuming you found it
Do it like that
Also folks said they had good experience magnetizing like in the old science books way
Where you stroke the magnet onto the part and drag it off repeatedly in the correct orientation with aligned poles
I tired that a bit and then left the magnets affixed to the speedo part overnight and whatever I did worked perfect because my Speedo was dead on accurate the next day when I did a trial run.
-s
Last edited by 2ManyTrucks; 06/11/2023 4:20 AM.