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    Mercruiser 2.5L 120hp compatible wit the 3.0 140hp???

    I currently have a mid to late 1970s Mercruiser 2.5l 120hp I purchased for a project. That project is gone, and a new project has shown potential. It is a 1979 19' Sea Ray with a 3.0 140hp Mercruiser. My question is will the 2.5 bolt in place of the 3.0? Will the mounts and couplers be the...
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    2000 Yamaha 0X-66 225hp drops cylinder 5 when hot?

    Hello All, I have been lurking for quite some time now, but just finally registered today. (I have a problem:) I have a 2000 Yamaha 225HP OX-66 SW series II. The complete motor has unknown hours on it, however the powerhead has just under 80 hours. I have been having very (seemingly) minor...
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