Originally Posted by gt fast

i got a hpi rs4. its the rtr with the stock .15 motor i bought it from a friend. now, ive had it for maybe a week and the first couple gas tanks it ran fine except when i hit the brake after full throttle it would die so i adjusted the carb stop/idle screw and that fixed that problem. now, after i start the car it runs fine, idles fine where it barly creeps forward which is fine for me. but after running it and warming it up i cannot get it to start again. what would couse this, i have tried adjusting my needle that is in the bronze sleeve and it seems that it has little to no effect, i had it way up, whihc i guess is super rich, it would start but not run, i dont want to have to adjust the carb every time so help me out with this one.