Go ahead and make fun,lol. I'm not blaming the motor. I know there are easier motors to tune though. I don't think the motor is done for either. It will not start unless fuel is forced into the carb. It only runs the fuel that is put in and will not idle. It does the lean run because it's not pulling in more fuel. I can only get it to stay running if I hold the throttle about half but when I try to adjust the idle down it quits. There has to be a more beginner friendly motor. I suspect an air leak somewhere but he doesn't want to take the time to find it. He wants a car that runs. I know, it sounds impossible but that's what I'm dealing with. My next suggestion is electric.
I always suggest electric to those new to the hobby.
many are drawn to the hobby cause they saw someone running a nitro. But nitros have soo many little things one has to learn. The learning curve for electrics is simpler.
And now with brushless models, you can get an electric that is just as fast as most nitros.
Another thought, did you try a new glow plug?