Having trouble with the tilt/trim on my 91 Johnson...1st time I tested it this year. Neither up nor down works...the pistons come out but struggle to make it back in. It also clicks some.<br /><br />Checked the fluid and even added extra.<br /><br />The only thing I can think of is that there is air in the lines, motor, etc...<br /><br />Suggestions? Thoughts? How do i go about bleeding the air out?