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    I6 lower unit?

    I have a 1969 I6 100hp Merc, needs lower unit replaced. My Question is which others will work on it? It's my understanding the 4 cyl motors use a different gear ratio than the 6 cyl, so i can't use one of them. But what years/hp motors should I be looking for to fit mine..
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    50 hp or 60 hp ?? what is it.

    Looking at a merc motor, S/N: A 188772. Says it's a 50 hp, but when I look it up to see what year it is, it shows up as a 1986 60hp Am I seeing things, or is that right? S/n is exact, I took a pix of the tag, ..but not the whole motor..
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    Mercury gas tank parts?

    HI, I have 3 of the old 60's metal gas tanks, all work fine, but the little window for the gas gauge is all fogged up on all of them. Is there anyone that sells parts for these tanks so I can replace the windows? Any alternatives?
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    presssure tank parts?

    Made a killing at an auction the other day, picked up 4 Johnson and 1 Evenrude pressure tanks for pocket change. 3 of them still had the old hose attached WITH the motor connectors on the end of the hose. I know some of you have been rebuilding these tanks, and they all seem in good condition...
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    90hp 1979 inline 6, choke question..

    90hp 1979 inline 6, choke question.. 3 carbs, only the upper 2 of them have chokes on them, bottom carb has no choke. Is this correct? or should the bottom carb also have a choke? Starts very hard, have to drown the thing with gas to get it to start. Runs great, idles like it should once it...
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    500 merc lower question

    I have a 1971 merc 500 (13 spline prop shaft), bad lower unit. also have a late 60's 500 merc lower which is the 11 spline prop shaft. Will the 60's 11 spline lower work inplace of the 1971 13 spline lower? is the rest the same just the prop shaft different? It looks like it will work, but I...
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    Lower unit for '84 90merc

    Looking for a lower unit to fit a 1984 90hp (6cyl) Mercury Outboard. Anybody know which other lowers will fit up on this? Thanks.
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    1955 25hp Johnson sequential twins..

    Hi All, new here. New to outboard motors, I've allways had I/O's. I recently stumbled on a PAIR of RDE-17-S motors. (1955 25hp Johnson)As it turns out not JUST a pair, these serial numbers are sequential, one right after the other.. 1304020 and 1304021. Seems hard to believe they have been...
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