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  1. J

    1977 Johnson 140 can’t turn over

    After changing out my battery cables with 4 gauge wire, she fires like a champion!
  2. J

    1977 Johnson 140 can’t turn over

    Pulled the starter, cleaned all the connection points with a wire brush to nice bare metal. Used some brand new 10 gauge 12 foot jumper cables. Improved a slight bit but not much. Have 12.56 volts at the battery.
  3. J

    1977 Johnson 140 can’t turn over

    Tomorrow I’m going to do just this! Went and got new cables and connectors and gonna really guarantee my connections are good, just seems like the only possible culprit at this point.
  4. J

    1977 Johnson 140 can’t turn over

    Flywheel seems to be installed correctly, again when the compression is removed from the cylinders everything turns free as a bird. Can’t say I have a spare teenager around, but I’m sure I could rig something to be able to manually pull it but wouldn’t that be a bad idea if there is something...
  5. J

    1977 Johnson 140 can’t turn over

    I don’t believe so. I’ve gotten home now, took off the exhaust cover and inspected it, no clogs. Opened up and attached a video of the piston from the side. Seemingly the resistance is purely the compression and suction created at the end of the stroke. Could 845 mca just not be enough juice...
  6. J

    1977 Johnson 140 can’t turn over

    Lol by spruce up I meant It was largely taken apart to be painted, inspected but put back together with the original parts with new gaskets. a deep clean but not many parts replaced. Aside from a carb being replaced all the internals are untouched. I attempted to do a compression test but even...
  7. J

    1977 Johnson 140 can’t turn over

    Lower unit isnt engaged, have tried also turning it over with the lower unit removed with no changes. Battery is hook directly, bypassing the solenoid. With the plugs removed, it turns quite freely as it should so I don’t believe it to be a bearing issue. With the plugs in you can rotate the...
  8. J

    1977 Johnson 140 can’t turn over

    I have a 77 Johnson 140 that I recently obtained and spruced up that I’m attempting to crank for the first time. Initially efforts had the starter engaging turning the flywheel maybe a few inches before stalling out and not being able to turn anymore. I replaced the starter as it already...
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