Hi everyone, new here. I have been reading some of the topics and it's seems as though there is a lot of help here. I'm having some issues with the bottom yoke on an 01 125 merc. I'm wondering if i have to pull the power head to change. The circle retaining ring is laying right under it. There is some play in the motor there now. I have tried to reset the retaining ring but it will not go on. Am I just not trying hard enough. I'm wondering if the recessed part of the swivel pin that the ring seats in in broke off, because by looking I don't see where how it goes on. I don't know much about this and looking for some advice on this if anyone has dealt with this. Thanks for reading.