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    Mid 70's Merc 200 20hp Carb Question

    So I have been struggling with my old merc for a while. I have determined compression is good and spark is good. The motor is still hard to start, surges under load, and will die at full throttle, so I'm not looking again at the fuel system. This has a Type "B" carb with the built in fuel...
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    1975 Mercury 200 20 hp powerhead swap

    Received the Seloc service manual, and it is exactly the same as the electronic version listed in my first post. It is, however, much easier to read the paper version. I put the new and the old powerheads side by side so I could transfer the ignition components. I finally figured out how to...
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    1975 Mercury 200 20 hp powerhead swap

    I've had the carburetor off a number of times, so exposing and removing it is no big deal. I recall from the manual that removing the throttle is something that needs to be done. It took me a while to figure out the thing to do was to remove the two torx screws in the tiller handle and pull...
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    1975 Mercury 200 20 hp powerhead swap

    In an earlier thread, I determined my new-to-me 1975 Mercury 200 (S/N 4148487) was worn out. It had only 60 PSI compression in each of its two cylinders. So, I decided to purchase a powerhead on eBay that claimed 115 PSI on each for $80 + $30 shipping. For posterity, I'm going to document...
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    1975 Mercury 200 20hp health question

    I just bought a small boat that came with a 1975 Mercury 200 20hp, serial number 4148487. The previous owner said the carb had been cleaned and the impeller replaced last year, but it was hard to start when cold. Once started, it would start easily. I think it sat for longer than he...
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    Oh Buoy!

    My brother took my 1979 Starcraft straight into something solid, and he hit it hard. The damage is above the water line, but it is pretty bad. I wasn't sure quite how to fix it, but I separated the top deck and the trim strip and managed to work the hull mostly back into shape. What worked...
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    1979 Stinger 75 hp Exhaust Adapter

    Looking at my 1979 75 hp stinger, I noticed an exhaust leak at the base of the powerhead, which lead me to loose and broken bolts, and a broken adapter. (I believe the piece the powerhead bolts to which has chambers for water and exhaust is called the exhaust adapter, but I'm not sure.) The...
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    50's gas cap help

    I have lost the gas cap to my 50's pressurized gas can. There are currently 2 on eBay, but the seller can't give me any information about them other than he claims they are OMC/Johnson/Evinrude. Are these likely to fit my gas can? The pictures look close to what I expect, but I would hate to...
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    1955 Fleetwin 7.5 7518 rebuild project

    I have a 1955 Fleetwin 7.5hp that I am resurrecting. It has been in storage for a number of years, became a home to a great many insects, my brother started a rebuild, got distracted, and now I am attempting to get it running again. Wbeaton has been very kind to share a parts manual with me...
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