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    1985 Mercury 18xd

    I just did this! there is no difference between the 18, 20, and 25 aside from the carb, and the tuner. I replaced the carb with a 25hp model, did not touch the tuner, I cant say how much the 18hp tuner is holding it back but it was well worth the upgrade in power for a $150 carb upgrade.
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    1985 Mercury 18xd conversion to 25hp?

    Lansing, MI I found the remote conversion online. I am using the schematics from boats.net. Do you by chance have a picture you could send my way to use as a guide?
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    Merc 1984 18xd sn 6633335 conversion from tiler to remote

    I have a 1985 18xd I am looking to make remote, did you ever figure this out?
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    1985 Mercury 18xd conversion to 25hp?

    Thanks for the replies gents. If I find a 25 carb, will the power gain be negated by the restricted exhaust tuner? or is that negligible? Also, if anyone has any ideas on how to turn these in to remote steering from tiller im all ears, funky throttle system
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    1985 Mercury 18xd conversion to 25hp?

    So I just purchased an old 16 foot tin boat and the guy, he also gave me his 85 Mercury 18xd. I was watching some youtube videos of guys saying it is the same engine block as the 20 and the 25xd (but the model was a few years earlier and not the xd version). I called mercury and the guy on the...
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