Muchmore motor issues
 

I’ve bought a bunch of muchmore products, all work great, I did get a used 13.5 motor in a buyout i recently did, but the motor doesn’t run all that well. I’ve taken it apart and cleaned and lubed bearings(they spin free) nothing looks to be bad.. tried a couple sensor wires but it seems like it cogs or somthing at midrange rpm. Could be sensor board or somthing. I’ve ran it on my motolyser and it doesn’t show anything bad as far as sensor board or anything. Is it repairable or should I just replace it. Thanks