Need help. I have this ht20 finally running well. The timing was off by 2 teeth along with many other things. It runs smooth now. The problem now is when I engage the travel pedal it lerches forward and when it goes into reverse it does the same. If you go real slow you can go forward with out lerching but have to come to complete stop and go real slow into reverse so it wont jerk. is there an adjustment that I'm not seeing in the manual? Its different from my 1886 that is very smooth. Any advice or help would be appreciated.