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    Compression Test: Damage Coils on Small 2-cylinder Johnson/Evinrudes?

    When testing with compression gauge on small (15HP or less) 2 cylinder older OMC's with Magneto Ignition do(es) the Spark Plug Wire(s) need to be grounded to avoid damaging the Coil/other? If I have only 1 Compression Gauge, what is the best method for Compression Testing (other Spark Plug...
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    Convert 1985 E6RCO to E8RCO

    Looks like I need to swap 6hp Intake Manifold 390232 for 8hp 393733, plus 6hp LeafPlate Assy 390231 for 8hp 393959. I can't find a used (or new) 393733, but I found a 390232-2. Will the 390232-2 work Ok assuming I get/install the other correct p/n's? Any other advice from someone who has...
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    "Easy" Powerhead Swap 4hp 4W75A into 4R76M not so easy!

    I am trying to remove the Powerhead from Exhaust Assembly on a 4W75A (which runs great has Transom Clamp broken, badly eroded paint etc.on lower unit) to install on a near-pristine (except blown cylinder/crankcase!) 4R76M. Crankshaft and all other necessary mating parts are identical between...
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    Cylinder/Crankcase 1976 vs. 1978 Johnson.

    Hi all, I am working on a 4HP 1976 model 4R76M and need a cylinder/crankcase p/n 0387605. Is there any way I can use a 1978 cylinder/crankcase p/n 0389502 which was salvaged from a model 4R78E? I'm thinking it won't work unless I get/build a whole powerhead, including the carburetor, from...
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    1976 4hp Johnson 4R76M Lower Piston Seized.

    Hi All, Around 3 years ago for $200 I bought a used freshwater 4hp Johnson 4R76M which (in hindsight) probably had some bad (water in) gas. The motor ran for a few minutes, then started making a hellacious noise and then quit. At the time I really didn?t have time to work on it (my father had...
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    12V Safety Horn not working although it receives 12V.

    My safety/drivers horn doesn't work when I toggle the horn switch on my Seapro 2001 18ft Center Console. Measured with DC Voltmeter clipped on at the 2 plugs/connectors which go onto the horn, I get 12VDC "steady" when I toggle-on the Horn. But when I plug in the horn, I get only a quick buzz...
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    Black Exhaust Goop question Johnson 90HP OceanPro

    I have a 2001 Johnson OceanPro 90HP 2-stroke that drips a black goopy ooze after I run it. Engine has maybe 600-700 hours on it?not a lot for the year (no HourMeter). This happens regardless of whether I run it for several hours or even if I run it (with flushing muffs/running water) on the...
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    Please help identify 12 foot Aluminum V-Hull

    Hi, a while back I bought a lightweight aluminum v-hull from a young man who was moving from North Carolina to out-of-state. I intended to use it just as a rowboat, i.e. no motor and therefore no registration required. I didn't worry too much that he had lost title, registration etc (the boat...
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