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    charging system on 6hp Nissan 4 stroke?

    My freind orderd a Nissan 6hp 4 stroke for his sailboat, and the option charging kit, the engine came in but the kit is still being shipped.<br /><br />What type of puller needed to remove the flywheel?<br /><br />is anything else needed?<br /><br />( I advised him to buy the service manual as...
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    WOW! new 4 stroke 50 merc

    got the boat back from the rigger/sales shop.<br /><br />I am VERY impressed by this little engine.<br /><br />got the first 3 hours of breakin done yesterday ( fighting rain and cold wind).<br /><br />the engine starts instantly, with just the turn of a key, nothign else required.<br /><br...
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    value of a 1970 80HP

    IM getting a new outboard, and I am unsure whether this one is worth more together or in parts.<br /><br />It was rebuilt sometime in its life, good compresion, new water pump, new fuel pumps and carb parts, new homebrew ignition system.<br /><br />starts up easy and idles smooth, but I cant get...
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    looking for a new 50hp 4 stroke

    from what I can tell they are all good engines, the deciding factors should be the shop service, and price.<br /><br />I am having a hard time finding prices online, id like to do alot of shopping and comparing before I start dealer shopping.<br /><br />Is it worth having EFI vs carbs? ( it...
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    1970 80hp, will not rev up

    Ive been working on this engine on and off for almost a year, im sick of it, and in need of some help.<br /><br />it starts and idles great out of the water, timing is set to max at around 21 degrees, linked and synched, throttle butterflies are opening all the way.<br /><br />it starts and...
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    1970 merc 800 starts easy, runs weak...

    compression is 120 in each cylinder, plugs are good, plug wires are good, has good hot spark, new fuel pumps, carbs cleaned out.<br /><br />timing at idle is 5 degrees, carbs almost closed, adjusted max timing to 20-21 degrees, throttles opengin all the way up.<br /><br />engine starts easy, and...
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    Inline 4 cylinder timing and synch questions

    I just read Clams good post on inlines.<br /><br />I have a 1970 80HP , it says direct charge on the sticker, sticker on engien calls for 27degrees max timing.<br /><br />I adjusted it yesterday for 5 deg at idle and 23 max.<br /><br />can I run safely on 87 octane fuel like this?<br /><br />I...
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    Old 80hp merc control box questions...

    Hey there folks,<br /><br />Ive swapped this 1970 80HP merc onto a late 80s aluminmum fishing boat, it was originally equipped with a 50 Force engine.<br /><br />I hooked the cables to the force control box since it was nicer than the old merc box. now I have found a problem.<br /><br />the...
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    1970 80hp wont shift, only forward

    I removed the lower unit, replcaed the water pump impeller, and now the engine is always in forward gear.<br /><br />I pulled it again, tried to realign the shift shaft to forward, the control box to forward and installed, still no Nuetral or Reverse.<br /><br />It used to work right!<br /><br...
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    any one have a 12V air boat lift?

    IM moving a boat lift from a dock with a generator ( 115V) to a dock with solar power ( 12V)<br /><br />and I havent been able to find an air blower to fill the lift tanks that runs off of 12V.<br /><br />does anyone out there have a 12V powered boat lift?<br /><br />thanks!
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    old merc ignition theory questions...

    From reading the manual I understand a bit more of how it works, but still have some questions.<br /><br />first of all, 1970 800 80 HP, early 278*** serial number, battery CD, distributor,single coil inline 4.<br /><br />according to the book, the switchbox has an inverter, and ramps up the...
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    inline merc distributer test (12footer!)

    I read where 12footer said I shouldnt be able to turn the rotor easily when the timing belt is off.<br />this one is very easy to turn, almost ZERO resistance with the dist cap on or off.<br /><br />does this mean the trigger coils are bad?<br /><br />i was given this 1970 800 80HP and I am...
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    1970 800 80hp no spark

    I just mounted this engine on my boat, I think it is wired correctly, key turns it over, with key on it has battery voltage at white and red lugs on switchbox.<br /><br />NO spark.<br /><br />coil primary tests at .3 ohm, secondary test at 368 ohms, its a rust colored round coil with a green and...
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    Distributer for 1970 80HP

    I removed the cap today and the center contact for the rotor button is broken off short.<br /><br />can I find anything else to function there instead of buying a complete $90 distributer cap?<br /><br />one from a car dist cap?<br />can I get that material from a starter/alternator rebuilder...
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    control cables for 1970 80hp merc

    My throttle and shift cable are VERY hard to move, with some visible cracks in the sheath.<br /><br />I have seen Morse control cables listed online, but How do I know which type of end that I need?<br />is there an application chart somewhere?<br /><br />thanks!
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    remove flywheel from 1970 80HP

    I rented the proper tool from a local shop, it is as tight as I can get it, and the flywheel wont come off?<br /><br />what am I missing?<br /><br />I have sprayed penetrating oil onto thesplines, and I stacked a washer on top of the crank to makesure I have enough threadto push it off.<br /><br...
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    rewire a 1970 80HP

    all of the wires are rotted, it looks pretty easy except I wonder if the wires going under the flyuwheel will be potted or epoxied into the coils?<br /><br />also the distributer wires, will they be potted in?<br /><br />if so how can I rewire them without replacing the parts?<br /><br />I read...
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    1970 merc 80HP lower unit reseal

    I noticed its got some signs of lube seepage, how hard is it to replace the seal behind the prop?<br /><br />it is for sur coming from right behind the prop.<br /><br />also what is a good brand of manual, and a good online parts supplier, or should I goto local parts dealer.<br /><br />Thanks!
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    what year is this 80 HP merc? now with serial#

    2784725<br />see photo links<br /><br /> http://tellico.off-road.com/wwwthreads_uploads/1261965-boat8.jpg <br /><br /> http://tellico.off-road.com/wwwthreads_uploads/1261966-boat9.jpg <br /><br />how much will it weigh, and how many cylinders?<br /><br />Im guessing late 60s, Mercs had...
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    weight of early 70s 85HP merc?

    how heavy is a 40 HP merc of the same vintage?<br /><br />the 85 HP looks larger, but not by a huge amount.<br /><br />Thanks!
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