1983 fourwinns 190 470 mercruiser alpha one. Ok so yesterday I take the wife and kids outs boat ran great . Got to the dock shut it off. When started back up I had no forward gear with no warning sign grinding oir issues of any kind. It just wasn't there when I put the shifter in forward it just revved up when I put in neutral it was fine and revers eworked fine but no forward. Please help ! Was plannin on takin it out later tHis week for the holiday weekend . Any help will be greatly appreciated