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    mercury 80 hp mystery

    Hello I'm having trouble finding parts diagrams and information for my motor all i can find is this serial number 2990915 can anyone tell me anything about this motor or point me to a website that i can see details diagrams thanks
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    alternator question

    I have a 1971 40 hp evinrude 40153b i was curious if my motor has a charging system and if not can i convert it to have one i hope someone can help thanks everyone
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    401 evinrude still won't go full speed

    Hi I have a 1971 40 hp evinrude 401 530 compression 99 and 110 have good spark cleaned carburetor let it soak over night blew every orifice with my air compressor only goes up to 1500 rpms what else can I do please help fuel pump is good idk what else to do I have slow speed at 1 1\2 turns from...
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    spark plug oil question

    1971 40 hp big twin evinrude m/n 40153b was just wondering what people recommend for spark plugs and what type of oil should i put in the lower part of the motor where the propeller is and how much any help would be appreciated thanks everyone
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    help using digital tachometer to adjust my 40 hp

    Hi so i decided to buy a digital tiny tach to help me adjust my carburetor slow and high speed lean knobs i'm at a loss dont know anything about motors can anyone please point me on the right direction i would greatly appreciate it i have a 1971 40 hp evinrude m/n 40153 s/n jo2554
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    gas tank question

    hi everyone love this site been helpful so far so my question is do i need to have an air vent on my 3 gallon gas tank? it's a portable red gas tank but i've seen no air vent on it what so ever i was just wondering if that would affect the performance on my 40 hp evinrude thanks for any advice
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    carburetor adjustment 197140 hp evinrude big twin m/n 40153

    hi everyone i just wanted to see if anyone knew where i should have low speed lean at and high speed lean it wont go as fast as it should any help greatly appreciated also which way should i be going with on both of them leaner or richer? i'm using 50:1 ratio i hope my problem makes sense to...
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    what year is this 40 hp evinrude?

    hi everyone trying to find out what year this 40 hp evinrude is the serial number is jo2554 and model number is 401153b been struggling can anyone help please thanks in advance.
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    1969 115 hp johnson pulse pack question

    hi everyone i recently put in a new coil on my 69 115 hp johnson outboard it still didnt fix the spark problem so my next step is to replace the power/pulse pack (not sure what the correct word for it is) my question is does it have to be the same year power/pulse pack? or can it be different...
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    1969 115 hp johnson motor spark problems

    hello everyone i hope i can find help or an answer here, so i have this 69 johnson motor that i was finally able to wire to turnover the only problem now is that it wont start the only things that i've done so far is check the plugs which seemed ok but when i grounded one of the sparks to the...
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    115esl69e wiring issue

    hi i bought a 1969 115 hp johnson and the key ignition is out i have no idea how to wire it back can anyone help me please? this is my first boat i bought and already having a headache...
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