Im brand new to rc. I have a raider that I bought off ebay it came with a traxxas vxl and vilneon motor no servo or radio. I bought an ax5s and a 7g arrma servo runs perfect. I take it out again and while driving it loses power. Or so I thought I throttled back and had my finger on the motor shaft now I have a burn hole in my finger. So the motor spins but the tires don't I feel like I stripped the gears somewhere I have checked the motor gears ,spur and pinion I think like I said very new and they are good what should i look at next