Sparks from motor
I was just setting up my car (T1FK05, had to redo a bunch of stuff due to my new 3PK). I started the car, and after I press throttle to max, then break to max, sparks fly from the motor (ok, they don't fly, but there's a big fat spark from the motor). My ESC is a Corally MMS3 (same as KoPropo VFS-1). I have the shottky on the motor, as well as the capacitor on the ESC.
Are the sparks anything to worry about?
What should I do about them?