I have an 545BB in my MTX2 for my throttle and it will not center properly. It is enough for me to notice the RPMs going way up when I come off the throttle. All my linkage is setup properly (I think) and it worked for a long time, but my car got whacked on the track and I had to replace the gear set. I might not have installed the gearset properly. Should I send it in? Or is there something I can do. Thanks.