Recent content by Socak

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    1984 Johnson 70 Timing Question

    I was trying to get the timing corrected on my motor yesterday and the timing light would not work off of the #1 cylinder. It worked on the #2 cylinder, I switched the spark plug wires and it still wouldn't work on the #1 cylinder. Got out the spark tester and used that, which showed a good...
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    Motor Cowling Repainting

    My cowling looks terrible, PO spraypainted it black straight over the stickers and everything. What is the best way to go about repainting this? Sand down everything with 80 then 120, degrease and clean, then use etch primer and krylon plastic paint?
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    Rebuilt 70hp Will Not Start

    I have rebuilt a 1984 Johnson 70, but now I cannot seem to get the thing to fire. I have tested the spark, easily jumps 7/16 open air gap with new spark plug wires. Compression is 140 psi on all cylinders so that is good. Which leads me to believe a fuel problem. I have tried spraying premix...
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    Reassembly of 84' Johnson 70 Tips

    What are some tips on the reassembly of a motor that you would not think of or are not in the manual? Also what do you do if the ring gaps are out of spec when you put them into the cylinder to for the gap clearance?
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    1984 Johnson 70 Wiring Questions

    I have a 1984 Johnson 70 I am rebuilding and I need some help with wiring it back up. There are two wires (purple and brown or red) that come down from the junction box for the tilt and trim and head to the terminal block, what slot do these wires go in? Where on the starter do I ground it...
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    Removing lower unit trim tab/anode removal?

    Trying to drop the lower unit and this bolt on the trim tab seems to be the only thing holding it on. What do I need to take this off, a thin walled socket?
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    '84 Johnson 70 Damaged Piston (Pics)

    I have a 1984 Johnson 70 that was reading a bit low (125, 120, 95) in the lower cylinder so I pulled the cylinder head cover to figure out what might be the problem. The 3rd piston, which had low compression, is slightly damaged, and all the pistons were fairly dirty. The cylinders themselves...
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    '84 Johnson 70 high WOT 8k rpms

    Just got a 15' fiberglass skiff that has a 84' Johnson 70 on a jackplate running a 13.5x17 prop. I installed a tiny tach on the motor and now when I am running WOT the rpms were getting up to 8k and the boat wants to idle at ~1500-1700 rpms in gear. I have messed with the idle screw and if the...
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