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    Really weird electrical issue

    The past few years I've been having some strange electrical issues with my boat. First the voltage gauge went haywire and bottomed out. Then my engine alarm would randomly go off. Now the radio will power off and on. When I turn on the navigation lights, the gas gauge drops. I've changed...
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    Johnson 1961 vs. 63 lower units

    I have a 63 Johnson 40 horse model RDS-25D. I've been having some lower unit issues. I've just picked up a 61 Johnson 40 horse model RDS-23. I'm assuming both lower units are the same, and I can swap one unit with the other. Can someone let me know if this is or isn't the case? Is there...
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    63 Johnson ignition issues

    When I try to start my Johnson, I'll turn the key and get 1/2 of an engine turn and it will stop. After repeating this several times, it will finally continually turn over. Sometimes when trying to start, I'll get an alarm type buzz that comes from the back of the boat. I just got a new...
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    fixing my motorguide ST170

    I have a Motorguide ST170, and would like to take the motor out. Can someone explain how to do this? Here's the schematics.
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    72 Johnson overheating

    My 72 Johnson 40 horse (model 40EL72E) overheats. Was running fine all morning, and overheated in the afternoon. I checked the impeller, and copper piping, and that all looks good. Re-started it in my garage, in a barrel of water, and it overheated almost immediately. Is there a thermostat...
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    1963 40 horse johnson jolts

    I have a 63' Johnson 40 horse super sea horse. It runs great, but have 2 issues. When it's running, the motor jolts like I hit a stump or something. I'm guessing it's slipping out of gear for a second. It happens randomly. Any idea what might be causing this? Also wondering about the...
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