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20HP Mariner Ignition issues

B

Bullie

Regular Contributor
Working on a motor for a friend. His 20 hp Mariner had no fire. He said the switchbox had been replaced last year. I cleaned every connection I could find, disconnected the kill switch, and could never get any fire so I ordered a new switchbox and installed it. Now I have spark jumping 7/16 on one cylinder. To test and see if it was a coil issue I swapped the leads from the switchbox to opposite coils and the spark moved to the other cylinder. So I assume it isn't an issue with the coils. I really don't know what to test next. What should I do?

Compression is 120/118
06512248 1997 20EH
 
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I hadn't thought of that. I figured since it is new OEM it had to be something I was doing wrong or there is another problem. If I had to put money on it I would figure it was something I am doing. LOL
 
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