Reply To: 48 Sea King Spark Leakage – 2nd Update

[jeff-register]

John,

First I’m not sure exactly whay your issue is . To check your coils using an ohm meter with nothing connected, what are your readings on the primary winding? put one lead on ground & the other on the points wire disconnected from the points, the secondary winding one lead of the meter on the spark plug terminal on the coil & ground the other meter lead on the K-ohm scale (1000) . Next check your capacitance on your capacitor. If it’s old it’s more than likely bad. Another timing check is your flywheel magnets have a north & south poles &  your laminations or shoes have 3 points of contact. The magnets align with  shoe A & B then align with B & C shoes. Exactly that point in rotation the magneto is producing the peak energy & the points should open at the time of rotation. I use a small lamp & battery to test as the flywheel must be on the crankshaft whth key in place, not tighted but placed correctly.Use a felt marker & straight edge to mark the magnet placement on the outside of the flywheel for clocking or placing the magnets in rotation.You can use an analog meter to test on ohms scale. Post results please. Also check the spark plug wire for any cracks or resistance in ohms scale. If bad replace.