I have a nitro rustler 2.5 I put a new plug in the other day and I've put about about 4 or 5 tanks through it on the new plug. I'm running the backyard basher fuel from sidewinder. I took it out today to read it and get a feel of how it's running. BTW the motor is not brand new. It's got like 2gallons on it. But anyway I pulled it out and this is what it looked like in the photo. Is this looking OK? Should I run it more then check it? Am I rich? To lean? It has a nice blue smoke all the way through the throttle and it's not running hot. In fact when I used my temp gun I got a reading of like 180. I just run in the back yard and up and down the street a bit. I don't have much room to really let it rip and open it up for a but it can wot for a little bit before I need to stop.