Hey, I just bought a slightly used Revo, (less then a gal of fuel and driven on grass only) and I'm having some problems. I'm using Top-Fuel 20% and have tried 3 different plugs. It will start and get warmed up I have been trying to tune it and think I have it pretty close, good responce and light smoke comming from the tail pipe. After it runs for a few minutes it seems to get real hot, the head has started to smoke and it dies. After it cools down it will do the same thing again. This is my first nitro rig and I sure could use some help. When the motor is cool it seems to have good compression ie.. I can barley turn it over with my finger. Thanks in advance...