I have a 2000' four winns 20 ft. with volvo V6 inboard 4.3L penta sx model. The contol box will not let me advance the throttle in nuetral, the handle pulls out fine but the handle can't be advanced so it makes cold starts difficult until engine reaches warm enough temp. to idle smoothly.When operating in gear everything works great no binding and full travel oof handle in forward and reverse.