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Hello All,
I am new to this forum. I am not sure my outboard is old enough to be in this Antique site. I picked up an old and beat up 1973 20 Hp Johnson (the first picture) and want to restore it.
I have taken a part the power head and rehone the cylinder, both of them got 115/113 psi. The block has been sand blasted and paint back base color. So far I got done step #1.
Step 2: Spark. It did not have spark so I have replaced two external ignition coils, new points and condensers. I got OK spark on the cylinder #2 and intermittent spark on cylinder #1 (sometime no spark at all). I have set the gap of 0.020″. The only thing I did not replace is the Charging Coil 581130 (Driver Coil). There is only one charge coil on OMC Armature Plate Assembly. Does it have 2 independent coil inside for each cylinder or only one for both? Does the point gap (0.020″) affect the spark quality?
Do I need to replace the Charging coil too?
All opinions and helps are welcomed.
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