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  1. J

    replacing plug wires?

    1966 rds28b (40 horse) Been having spark issues but think I have them figured out. Replacing plug wires now, is there a trick to removing the plate below the flywheel or does it simply pop off with a bit of force?
  2. J

    No spark in lower cylinder

    1966 johnson 40 rds28b. Top cylinder sparks fine, none in lower. swapped coils no change, possibly points or pack? What is the best way to test this. Also, the two wires on the ignition switched marked "M" seem like they link together somewhere. Using a continuity tester they show a continuous...
  3. J

    1966 johnson 40 fuel pump

    Wondering where I can find a new fuel pump? The one that is on there now looks like the Sierra 18-7350. On the site it shows this only as applicable up to 15hp. I also need a new ignition switch. Will just about any marine 3 position 5 terminal unit work or is there a specific part I should use...
  4. J

    Ignition seems to be grounding out '66 rds28b

    I have a 1966 johnson 40 rds28b. The ignition has two "m" terminals one for ground and one to cut out switch. They both seem to be grounded to the block somewhere. I traced the problem up under the flywheel and from there I have no idea. Is it supposed to do this or is there a short, possibly a...
  5. J

    Free online wiring diagram 1966 rds28b

    Don't want to purchase a whole repair manual just want to peek at a wiring diagram to see if I have things right. Any suggestions?
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