So I got into the nitro hobby I like engineering so this right up my alley,I got a nitro stampede a good starter car I had fun with my first engine In tell one day dooms day struck the car with a lake of water so I had to get a new one and I just started breaking it in today and every thing was going fine on the second tank and after that the engine cut off smoking like crazy I checked the glow plug it was gold like something is wrong and no it is not lean it is rich. Can someone please help me ,I've also tried another glow plug that did not work.