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    55EL78S no fire on bottom cyl.

    Hey guys, hope you can help me with this.Just aquired a boat and 1978 55hp johnson.I try not to bug you and do a seach first, but this one has me baffeled.PO said it ran last year. But other then that, I have no history on it. I got without even hearing it run.It was a divorce, "I just need to...
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    Tanaka TOB25 timing

    Hey guys, need a little help here. Got my little project motor all back together and it runs great at wot but not so good at idle. Sounds to me like it starts to knock pretty bad then dies. Too far advanced maybe? Point gap is correct but I'm not sure about the timing.There is a M and arrow on...
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    1974 Tanaka LU question

    Hi, I recently aquired a TOB 25 Tanaka.My question is how do you fill the gear housing with lube? There is no filler screw like the the ones shown on tanaka usa's website. I removed the two housing screws to take the prop and driven gear off and drain what was left of the nasty old lube, but how...
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    Tohatso/merc idle guestion

    I have a 1995 Mercury/Tohatsu 5hp.And I have a question on how smooth these 1 cyl motors are suppose to idle.It has always run a bit rough at idle, but smooths out at high speed.My '74 15 hp ,and '58 3hp Johnson run smoother than this Merc at idle.Do all 1 cyl motors run like this? I don't know...
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    What coil goes to what points ?

    Hello again,can anyone help me with this? On my 58 JW-14 3hp, looking down at the points and coils with my fat belly in front of the motor, and the motor turning clockwise, the upper coil is facing me.The lower is away from me.My question is which points do I hook up to which coil?From the...
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    1958 johnson prop color

    Hi,my little JW-14 came with a black prop,but all the pictures I have seen have a white one.Does that mean it has been replaced? It is a 2 blade,thanks.
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    1958 johnson jw-14 3hp

    Hello all,I just aquired a 1958 jw-14 for a pretty good price,free. It does run for a short time on the upper cylinder,no spark on lower.On investigation,it looks like the coils, and spark plug wires have been replaced. Someone took the points,and the cam lobe out, and threw them away. They put...
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    15R75c plug confusion

    Ok guys,here's the deal.Motor came with Autolite 45 badly fouled.Went to get new plugs,and lots of other things.FSM says to use UL4J,nomenclature plate on motor says to use L7J.So I go with the L7J,discontinued.Guy at Napa says this NKG B7HS will work.They do,and work fine,until I run SeaFoam...
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    Points ajustment on 15hp johnson

    Hi,quick question.My factory manual says to set the points at .020 at WOT. What difference does it make where I set the points at? Shouldn't the points be at .020 no matter where the the plate is in relation to the cam? All your doing is advancing or retarding,they will be at .020 wherever they...
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    Seafoam

    Well, I've never been a big believer in a motor rebuild in a bottle,but I ran Seafoam through my motor this weekend,and I've got to say,I'm impressed. I don't know exactly what it did,but now this 33 year old engine that has sat for atleast 10 or more years,starts on the first pull almost...
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    condenstion question

    After I run my motors,I do the flush,but I live in Sonoma Co.Hot days,cool nights.What's your take on this? Should I leave the cover off it when I put it in the garage,and let it air out? I was thinking about taping a sack of silica gel to the hood to absorb the moisture.Is this a good idea? I...
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    head gasket on 75 15hp opinions needed

    I was given a 15r75c.I have no history of this motor.I have replaced the impeller,spark plug coils(because they were rusted an the laminations were swollen),spark plugs,and with the help of another forum member,rebuilt the carb.She runs great now.I also drained the gearcase,and found old brown...
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    1975 Johnson Carb Removal

    Hi all,I just joined,but I have been lurking,and learning.Great forum by the way. So here's the scoot...A friend of mine gave me a 15r75c Johnson.It was in pretty good shape cosmeticly, and free, so I didn't mind dumping some dough into it.The spark coils were rusty and swollen,so I replaced...
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