I have a 55hp Rudy (Model # 55773D), with a lower unit off a 50hp Rudy (Model # E50ELCNR). I figured the real pertainent infor is that of the 50hp. Anyway I can't get the motor to go into reverse all the time. Most of the time it just rattles like it won't engage. I checked the cables, figuring I could just adjust them and that would be that, but the shift cable is adjusted as far as it will go toward the reverse. Is there any other adjustment I don't know about or I'm not seeing? Or is the dawg in the lower unit worn, and keeps kicking it out? <br /><br />I'm looking into buying a manual for this motor right now, but would like some advice until I get one, Thanks.