I have had my car for 2 months. For break in I used about 3 full tanks of gas about half throttle for 2 seconds let off and so on. Be for I had time to tune it in the car started to bog out and die at full throttle when it warms up. Now after long hours of tuning it bogs out and dies. Will not stay running. It start to drive good but once it heats up it bogs out and dies. I have gone back to factory spec so many time and started all over. I am at a los and don't know what to do!

could be a small leak in the fuel tank, could be the muffler plugged up, Air filter plugged, replace glow plug <-----good place to start, and go from there [&:]

And you replaced the clutch & clutchbell already, or not?

Can you start it off of the ground? But then it dies when you put it on the ground, if so ... your clutch spring is bad. Refer to the clutch bell and spring upgrade thread.

Other suggestions above are good also, check your glow plug out.

sound like you have an air leak.

Check your fuel tank. Mine was plugged from the factory with plastic.engine got way hot because of no fuel.

cheap plugs, thanks