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    1967 Evinrude 18hp Fastwin with 25hp Carb: Trouble starting, staying running

    For two years I've owned a 1967 rope-start Evinrude 18hp with a carb from a 25. I bought it from a part-time mechanic who claimed that made it a 25hp. I've since learned--through this forum--that installing a 25 carb on an 18 does NOT make it a 25. In any event, the motor ran fine when I...
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    1970 18HP Evinrude: At WOT, RPMs vary greatly

    I own a 1970 18HP Evinrude with manual start, which I purchased a year ago. I purchased it from a man who does outboard repair from his garage, who has many years of experience working on them. The motor starts with ease, idles smoothly, and appears to run well at low speeds. But starting...
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