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  1. J

    1st attempt on simple conversion of 1973 evinrude 25hp to 30/35hp using carb and manifold mods

    Hey what’s up brethren…. I’m attempting a conversion on 1973 25hp evinrude to 30/35hp using bigger 25/30hp(?) carb off early 80’s Johnson and increasing intake manifold orifice size. I’m learning about engines and particularly these outboards 1 engine at a time as I trade and buy them and fix...
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