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I have a 1987 johnson gt 150 engine that smokes bad and carbs leak gas out of front comp 89 on 4 cyl 90 on 2 rebuilt carbs disconected vro checked timing runs good but smokes bad new plugs and wires mix is 50 to 1 syn oil could not find leaks anywhere help am lost
I have a 20 foot sun tracker bass buggy it has a 45 horse power mercury outboard . With a full load it hardly moves . What size engine could I upgrade to. The tag on the boat says 60 hp max. can I go bigger? Thanks