hi boy drew your batteries were failing ,, batteries pack thru the switch to receiver kept servo throttle to carburetor open and kyosho buggy or truggy took off and ran ran away , you can a purchase
and in stall a fail safe system , where the fail safe system moves the throttle servo to just an idle and applies brakes so the buggy or truggy does not take off ,some radios systems have this built into there radios and
receivers together , or you can purchase this on ebay and set it up yourself it come witth instructions ok mugey