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  1. 1

    factory prop size

    Hi guys sorry if this has been beatin to death. I have a 1990 fourwins horizon 220 5.7 omc cobra (21:16 ratio). The prop looks to be original. Its beat up and is a 15x15. I looked everywhere trying to find out if this is the factory size but cant seem to find any info on my boat. Does a 15x15...
  2. 1

    Prop selection

    Hi guys sorry if this topic is already been discussed. My boat is a 1990 fourwins 220 horizon 5.7 cobra (574aprmed). My prop looks to be original. Its beat up pretty bad and its a 3 blade 15x15. Ive looked everywhere online to determine if this is the factory size. I cant seem to find any info...
  3. 1

    Water coming from pcv hoses

    Hi guys its me again with yet another issue. Im afraid this one may be major. Again im new to boats so im not exactly sure on the cooling water flow of these marine setups. Here goes, i have a 1990 boat with i believe a 1989 5.7L (574aprmed). The motor starts fine cold and runs great for hours...
  4. 1

    1990 omc cobra drain/fill/dipstick seals?

    Hi guys, so im about to change my gear lube on my outdrive (first time, boats new to me). I found the fill procedure on this site (thanks!). My question is, on my outdrive all i have behind my drain, fill, and dipstick screws are white plastic washers. I read that people are also using a fibrous...
  5. 1

    Engine Alignment

    Hi guys, Im new here and this is my first post. First off id like to thank everyone here on this site, Ive learned a TON of info on boats! Ill make this short, I just bought a 1990 Fourwinns 220 horizon 5.7 OMC (I didnt know any better at the time). Well, first trip out and the lower unit locked...
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