I just purchased a 1978 Ranger Aztec. It had a hotfoot throttle but the hotfoot cannot be moved forward enough for me or my son so we would like to hook the hand throttle back up. It is part # P/N B-63063A1. We can figure out we need a shorter cable but can't figure out how it gets high idle in neutral. the two buttons below the lever are labeled "choke" and "trailer" I have attached a picture of a box that is close to what I have except where this one in the picture says "warm-up", mine says "choke". Any help will be appreciated !