CRYSTAL OSCILLATOR FUNDAMENTALS EXPLAINED

i utilized ckt on bread board and measured on dso …the output experienced only 800mv ac element of 40mhz while other section was dc part of about 4v . i used Vcc of 5v . what I would like is atleast 4v peak to peak as well as 9v peak to peak if Vcc is 9V …looking ahead to speedy replyIt uses a quartz crystal to manage the oscillation frequency,