First try firing up the Revo since I put on the new exhaust header with the spring holder. Also put on a new cooling head and it didn't want to start. Saw a little nitro coming out the base of the cooling head so I re-tightened everything and it fired up. Was just driving around when it stopped and the piston wouldn't spin with the easy start. Brought it in and saw the easy start pulled out of the motor. Weird to say the least but reapplied thread loc and finished off my tank. Overall a good day because I fixed every issue and was able to keep going.