In addition to the new Forza 1/10 Buggy with the vx18 engine I also have the HyperSpeed single speed with the vx16 motor.

On the vx16 motor, it starts fine with the electric starter and runs fine until it is warmed up. Once it is warmed up, it runs ok as long as the revs are kept up. If you come to a stop and try to let it idle, it will idle for a little bit and then stall. Important details are:

1) Was broken in using the slower speeds method (going from 0 to 1/4 throttle, back down, 0 to 1/2 throttle, back down) for 5 tanks of fuel
2) Doesn't seem to matter if idle adjustment is set higher or lower, still does the same thing
3) low speed adjustment is set flush with the surrounding ring, but I have tried leaner and richer with same result
4) high speed is set 2.75 turns from the closed position
5) using Traxxas Nitro 20% fuel - have gone through about 1/2 to 3/4 gallons now on this engine
6) seems to happen once engine warms up, does not seem to do it when cold
7) engine runs about 250 degrees with outside temp in the 40's
8) once it stalls it is not very easy to fire it up again - have to crank several times and play with gas to fire up

Any thoughts?