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Thank you for taking the time to create the instruction procedures for maintenance on old outboards. I have been replacing points, coil and condensers on a 1958 Johnson 10hp following your method for setting points. If I place the cam at Top mark with points open to .20 and then slip the flywheel on, aligned with key, the mark on the flywheel that I would use to set the points is no where near the two marks on the magneto plate. I did take the magneto plate off (replaced plug wires) and have re-installed, does the plate have to be screwed back on following a particular procedure? Or aligned with a particular mark?
I think there is only one way to put the magneto plate on. There is no adjustment.
There are two writeups I did for the ignition system. I did one for the 3.0 Evinrude and another for the 5.5 Johnson. I wrote them up at different times, and they complement each other, so I recommend you read them both. Both of these and your moter all have the same ignition system. I think the 5.5 does a better job of explaining your point. In there I explain that you may have to adjust the breaker point gap to make it center between the marks as the points open. If you do not have a marking on your flywheel for the 2nd cylinder, you may have to make your own with a sharpie on the exact opposite side or 180 degrees. There is only one mark on the stator base.
I hope I did not confuse you. If you still need help, I can point you to some better experts than I am.
Thanks for the reply. I suspected that there was only one position for the armature plate, due to the linkage to the throttle. In both examples (3.0 and 5.5), you state "When the timing mark on the flywheel is between the two marks on the armature plate, the points should open and the ohm meter will change from 0 to infinite ohms." When the timing mark is in this position, the meter reads zero. If I pull off the flywheel (carefully), the shoe of the points on the cam is not near the high point, marked "Top". If I turn the throttle to full to move the armature plate, I can get it close to Top,but not on Top.
I feel like I'm making a very basic error in the process, as it seems as though it should be straight forward.
Are you sure you have the right points for that motor? Just wondering.