Losi lst2 trans problems
 

forgive me im a newbie to this nice 1/8 scale losi lst2.I got a real good deal on it used.it came with a jr xs3 radio.my question is the trans has reverse.when i hit the a switch it switches to reverse and works fine when i hit forward it goes into forward but if i go past 1/5 throttle the reverse servo moves toward nuetral.this does not happen in reverse so i can drive forward but if i accedendly hit the throttle too much it goes to neutral.is there a setting i see theres some type of spring on that reverse servo.when i hit the brakes it goes to nuetral.this is prob normal? if i hold the servo forward it works of .does the radio have a setting i cant find it or how does this work.again i did notice half throttle on my radio is wide open on engine.what can i do.thank you.im not new to nitro have 7 cars just new to losi lst2.thanks