mrpints69

Hey guys I need some help with my revo 3.3

I bought it about a year ago. I broke it in and had been driving it fine for about 2 months. One day after driving my revo for about an hour I took the air filter out and cleaned it like ur told to after every hour of run time. The next time I took it out I noticed it was acting different. It seemed to have an whole lot more power then it usually dose. After about and 50 minutes of run time it started sputtering and seeming to bog down. Then it started cutting off. I would have to run over and start it back up. It started cutting off more and more frequently until it would just not stay running. Well when I brought it back inside to see what was wrong with it I noticed that I had left the freshly cleaned and oiled air filter on my rc work bench. So I believe that the sand and dirt got in the engine after about and hour of driving it. I was driving it in a mostly sand with some grass. This made me so angry that I haven't touched it for 5 months now. But I want to get it working again and it is not wanting to stay running. When I go to start it up I will have to hold my finger over the exuast for about 20 seconds before it will start to fire and crank over. But it wont stay running unless I have the button held down on the ez start. Also I can't give it any throttle because it bogs down and it just wont rev at all, Unless I hold my finger over the exhaust for 10 seconds or so. Then when I take it off it will get like a sudden burst. I checked the ez starter cord that hooks up to the glow plug and it worked fine. I also took my glow plug out and tested it, it glowed just fine and looked good. I am having several drops of oil/nitro dripping out of the exhaust pipe after I spend a whole ez battery charge trying to get it started. Do you guys think that the motor is messed up because of the lack of an air filter for an hour? Could their something else that is causing this? could their be a lack of compression? too much or too less gas? I did tinker with the tuning when trying to get it to start up and keep running. But once I take my finger off the ez start button it runs for about 2 seconds and then dies. Let me know what you guys think. I need so ideas to what it might be and some easy solutions.