capacitors on motors

[billbo911]

Originally Posted by sparksandtabs

i dont know if t his should be here or not but when ever i see a motor from a r/c car it has a couples of capacitors between the leads on the motor, and i was wonder what is the purpose of them?

I believe that is a fair question.
Those little caps perform a very specific function, one that is important in the environment that those motors are used. They are filters. Their purpose is to suppress, or at least reduce, high frequency noise and RF interference generated by the making and breaking of the connections between the brushes and armature.
Considering that these are used on Radio Controlled vehicles, this is a good thing.