You mentioned full throttle and the steering starts acting up. The left turn issue you describe, are you turning full left on the radio, possibly with full throttle also? What about partial throttle and steering, is it OK then?

My WAG: Have you set the servo endpoints correctly? It’s possible the endpoints are set too high, at full input the servos might be binding up and causing problems. Granted one would expect this problem to occur with the motor off as well, but perhaps they are right on the edge, motor vibration and/or any flexing under load then contributes.

Thanks for the reply. Since I am a beginner could you please explain what do you mean by too high?

Meaning the servos might be set to move too far. For example the steering on the buggy can only move only so far before hitting some physical travel limit. If the servo is trying to move farther than that limit, bottoming out the steering, it can draw a lot of power, especially if it’s a modern high power digital servo. Possibly causing the type of issues you seem to be experiencing due to resulting voltage sag of the receiver battery. Also it’s very hard on the servo.

At full left and right turn of the radio, there should be a little play/clearance left in the steering mechanism. Through out the suspension travel too. The same applies for throttle and any other channels.

Not familiar with your radio, but a quick check of the model on Futaba’s site indicates it has EPA for all channels (End Point Adjustment). This allows adjustment of how far the servos will move in each direction.

The EPA was one of the first things I have set on the transmitter so I guess it shouldn't be that thats causing the problem.

I think he's not saying that EPA not being set is not whats causing the prob, but that its been set wrong and thats causing servos to strain which may be the prob.


At least thats the way I read it....

I know that my battery has a capacity of 1600 mA but when I discharged it completely and charged it again the charger indicates that it charged it with 980 mA. Does that seem odd?

Also when I begun to discharge the battery, the battery checker indicated that the battery wasn't "safe" and it was in the "attention" levels and I only used the battery for 3-4 minutes of buggy runtime. Does that seem odd as well?

put some kind of padding inside of the reciever box and move all wires as far away from the motor as possible. And dont cross any other wires with your antenna wire.

You need to cycle the rcvr batt a few times to get it back into optimum shape. Looking at the figures, apparently its been sitting a while unused? NiMh self discharges and needs to be cycled every 30 days to maintain good condition. Cycle it until you see the discharge mah level off. Thats as good as the batt is going to get. It will be better for the batt if you don't use charge/discharge rates more than 1amp. It takes some time, but I cycle mine at 0.5a/0.5a.

It could be worth considering the crystals as the culprit. I had the same issues, but when I changed the crystals, it disappeared. Try with another set of crystals, and see if it works then. If the rcvr is not properly secured and left to move about while your're driving, it can get banged around, and that may have damaged the rcvr or crystal. Good luck mate.

That would be something to try if it was an AM or FM radio, but the Tx/Rx he is using is 2.4GHz, so no crystals.

I had a similar problem with a old school T-Maxx and the battery was the culprit. I could of swore the battery was good it was newer and took a charge. But I borrowed a friend on mines battery and son-of-gun if that wasn't the problem. Try it, it might work. Good Luck...