well guys i have an nx 15 engine and it seems its not working properly. the problem is that everytime i let go of the throttle the car stalls, what should i muck around with, the idle screw or the low end.
btw car runs good if i hold the throttle, well it seems that way. things i realised was that the idle screw was all the way in <(is this normal) and also there was no spring < (is there meant to be a spring on the idle screw?)

also when adjusting the idle screw what should i look out for (like is there any physical movement that is visable when tuning the idle screw)


thx

really all you need to do is look up a good tuning guide that explains idle too, its really kidna hard to tell you exactly what to do without us being there, you can fix things alot easier if you learn what does what by trial and error, sounds like the idle screw is a bit too far in though