Re: 1965 merc 900 controls
1965 900? I can't find my serial number site for mercs, but I don't think merc made any 900's,in the 60's a 950 yes, but no 900's till the 70's. If its a 1965 950, or 950SS then you should just change the shift cables, you can find them for sale on E-bay etc.