Quoted from gjm7777:Linking my post here
https://pinside.com/pinball/forum/topic/how-to-tame-cointakers-shaker-motor/page/2#post-4839952
Hoping someone here has installed a power control motor for their shaker motor (looking to dial it back a bit, as even on low it's too much)
I can't figure out which color is + and -
Looks to me like it doesn't matter - yellow connects to yellow and blue connects to blue.