over heat !!!!!

[squeeforever]

sounds as-though you might have gotten sand in the motor and ruined the sleeve and piston. i had a similar problem when my airfilter came off on my revo. it wasnt as sudden but it didnt take long for it to come about as a major problem. it would be kinda hard to start, then i would get it running, make a pass or two and then bring it in for adjustments and as soon as i let off the throttle it would die. pull the head off and and see what you can find. also, roll the flywheel with your finger. if you dont feel any kinda pinch then you dont have any compression and its time for a rebuild.