When I idle or wot in both neutral and in gear the throttle wants to turn itself down to the off position. My 6hp stays right where you put it. Why is this happening? When I rebuilt the ignition I tooke the throttle linkage apart and didn't tighten the pivot bolt down too hard. Is this my problem? When it idles the spring loaded nylon thing that pushes against the flywheel kind of whizzz whizzzes. Help please, -woody74