it might be that the endpoint adjustmnet is set too far to the closed throtlle possition and it takes to much of a movement from the servo than the trim will provide.. or the sub trim may be set too far aswell, check all the settings you can.... it should be one of those 2 things.


if that doesnt work..take the linkage off the servo recenter the settings in your radio to neutrl, 0, and hook it back up and reset it