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Old Marine Engine » Gray Marine Gas Engines - 4, 6, and 8 cylinder » LIGHT FOUR MOD. Y4-680 « Previous Next »

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Roberto Ferreira da Costa
New member
Username: skipperj05

Post Number: 1
Registered: 11-2011
Posted on Tuesday, November 29, 2011 - 08:25 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I just bought a classic little powerboat with a Gray Marine engine, model Y4-680 (D244), serial number Y400A507W. In the top of it is there is written “LIGHT FOUR”. Is this a 69 cubic inches motor (16 HP at 1.800 RPM)? Or 25 HP one? When was made? I need the eletric starter and carburetor, who produced this parts? Can I adapt this parts of another engine? Can I reach parts to rebuild the engine, if a need? I knew in a specialized site the original carburetor to its is a Zenith, what the model?

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