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    '71 40hp Johnson Skitwin (Model 40153G) Starter/Solenoid/Electrical issue

    This motor has recoil and electric start and manual shift. I'm just trying to test for compression at this point and this motor isn't making it easy. First, just to clarify, do I leave one spark plug in while testing compression in the other cylinder? Second, the pull starter has 3 little wings...
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    Sheared flywheel key damge 1959 Johnson 10hp

    I didn't tighten the flywheel nut while working on this motor and sheared the key. The flywheel keyway was slightly damaged (see pics). It's widened out at the bottom and has a lump on the bottom face. The cam was cracked too. The crankshaft keyway is ok. I can get a cheap used cam. I read I can...
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    Recoil starter question on '59 10hp Johnson (video)

    Right off the bat let me admit that up until 2 months ago I had never worked on an outboard. I'm very much a novice but am trying to learn. I have a 10 hp 1959 Seahorse that I'm bringing back from the dead. The recoil starter seems a bit harder to pull than others I've seen on Youtube. The...
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    Excessive white smoke - 1959 Johnson 10hp

    I have continuous white smoke pouring out of this motor. It's not steam. The smoke lingers in the air for at least 5 minutes after the motor dies. It'd make a great Halloween fog machine! I had poured Marvel oil in the cylinders to free the pistons when I got this motor this summer. Worked...
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    Help finding parts for 1971 40hp Evinrude

    Hey all, I recently bought a '71 evinrude 40 hp ski twin that needs parts. It's NOT an electric or hydro-electric shift. It turns over with a jump battery and sounds strong. It was only $50. If compression checks out, I want to get this thing going. It's missing the wiring harness (it has just...
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    1959 10hp Johnson hi and low speed needle seating

    I can't figure out how to seat the hi and low speed needles in order to back them out the appropriate # of turns. The low speed is the upper needle and has a split end that the screw that holds the knob on threads into. After removing the knob and screw, I tried to put a flathead screwdriver to...
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    Points problem

    I'm trying to figure out the lack of spark on bottom cylinder on 1959 10hp Johnson. I have spark on uppper. I've put new points and condensers on both cylinders, new plugs, and the PO installed new coils and wires. The points for bottom cylinder are not lining up perfectly parallel (See photos)...
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    1961 crestliner mustang

    Does anyone think this is a good deal at $125.00? It's a 1961 Crestliner Mustang. 14' long. If I was reading correctly it has a balsa wood parque-looking floor (no stringers). Has one cheap plastic seat for driver but no original back-to-back lounge seats. Seller buys, refurbishes, and resells...
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    1971 40hp Evinrude Common Problems?

    i'm going to look at a '71 40hp Evinrude a guy is selling for $100. It's a model 40153g. It has a starter so obviously electric start, also has manual start. Do these motors have a "black box" ignition system? I've been told to stay away from those due to the expense of replacing them, as...
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    Good or bad compression and ignition problem diagnosis

    I have a 1959 10hp Johnson Seahorse (Model QD20). Although it's not currently running (no spark), it's in overall good shape. Someone's gone to the trouble to repaint it two different occassions. I tested the compression and had 60psi in one cylinder and 55psi in the other. Is this decent enough...
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    1959 10hp Johnson Seahorse Parts Cross-Reference Help

    I am trying to source an air silencer with mounting bolts, including as many other parts directly connected to it as possible. I'm missing one on the motor I bought. There have been some on ebay for my year motor, but in poor condition or missing hardware. There have been others from 1960 and...
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    Am I missing any parts on this 1959 10hp Seahorse (QD20)?

    The guy I bought this from said he had to go take his motor back from a mechanic who wouldn't return his calls. He got it back in pieces and neither he nor I are sure if he got all the parts. Can anyone tell if I'm missing something? I'm new to outboards and was wondering if I'm supposed to have...
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    What year is my QD20 Johnson 10hp Seahorse?

    I'm new to this forum and the outboard world. I just acquired a 10hp Johnson Seahorse and am trying to get it running again. The Model # is QD20 and Serial # 1876933. The guy I bought it from said it was a 1959 model. Also, was wondering if anyone knows the fuel:oil mixture ratio, magneto points...
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