Sorry let me clarify.


I put the servo in the truck and put it out on the track. I start going down the straight and as soon as I let off the throttle it immediately goes to full brake. I tried changing all the throttle settings on the radio and nothing fixed it.


1.using stock HPI horn. I can only use the HPI horn because of the way the throttle linkage is setup stock. The HPI horn has a built in servo saver.

2. The JR XR3 does not have ABS.