Originally posted by LiLRCLoUiE
This is on a Picco Integra and i tried the radio and it makes it totally different and it still dosent fix the problem.
yeah, as what they said, ensure the servo moves in proper direction with the reverse/normal switch on the TX.
you might have improper timing on the servo and brake linkage. make sure you have a very little bit of drag brake or the brake is "just" free when the servo in neutral position.
the point on the servo horn for brake linkage is also important. it is likely you have your point on the most outter point on your horn which makes brake "on" under full throttle.
You may check this site
on information about throttle/brake linkage.