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Mercury outboard carb swap for increase HP
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<blockquote data-quote="nelsonag" data-source="post: 482502" data-attributes="member: 27573"><p>Hello all, </p><p>I have an 85 merc 18xd that came on a 16 foot tin boat I purchased. It does well but with 3 guys and duck gear, I might need more juice. Saw some videos online of a guy swapping out the carb and exhaust tuner on this model to upgrade to a 25hp. From research online, the engine block and all other components are the same across the 18, 20, and 25 with only the carbs and tuners differing. Has anyone done this before with any result? I am curious if I just buy a carb if it will be negated by the smaller exhaust tuner? Or should I just sell it and put the extra $200 I was going to use for the carb into a 40hp engine. thoughts? </p><p></p><p>Also, if anyone has any advice on turning this from a tiller into a remote steer, Im all ears. I attached some pics</p></blockquote><p></p>
[QUOTE="nelsonag, post: 482502, member: 27573"] Hello all, I have an 85 merc 18xd that came on a 16 foot tin boat I purchased. It does well but with 3 guys and duck gear, I might need more juice. Saw some videos online of a guy swapping out the carb and exhaust tuner on this model to upgrade to a 25hp. From research online, the engine block and all other components are the same across the 18, 20, and 25 with only the carbs and tuners differing. Has anyone done this before with any result? I am curious if I just buy a carb if it will be negated by the smaller exhaust tuner? Or should I just sell it and put the extra $200 I was going to use for the carb into a 40hp engine. thoughts? Also, if anyone has any advice on turning this from a tiller into a remote steer, Im all ears. I attached some pics [/QUOTE]
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Mercury outboard carb swap for increase HP
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