So here's the deal, I'm a n00b to the nitro RC but not to RC, I have a sumit and a slash both electric. I've always been fascinated by the nitro RC and their engines so I decided to finally give in and get a nitro, even after people telling me not to do it because they are such a hassle. I got a used 3.3 Revo off a guy that had tons of rc's and was just looking to downsize. He kept them well maintained and running great, even took it for a spin with him for about half hour just to make sure it worked. I ran it a few times at home (3 or 4) and did a thurough cleaning of the engine and all parts, wd-40 and all. Next time I tried to take it out it ran for about 15 minutes and suddenly died. It starts when I use the EZ start but the instant I remove it, it shuts down. It only stays running if I have the EZ start plugged in and crank it, I give it gas and it dies 4 feet later. I have reset the needles to factory settings and have all my batteries fully charged. Has anyone seen this before? hope it's something that can be resolved or I might have to sell it and stick with electrical but I have always wanted a nitro.